Tag Archives: USDA

NCIA to DEA: Rescind the Interim Hemp Rule

By Cannabis Industry Journal Staff
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In a press release published this week, the National Cannabis Industry Association (NCIA) urges the DEA to rescind the controversial Interim Hemp Rule. Back in August, the DEA published the rule and it has received widespread criticism for its language in conflict with the 2018 Farm Bill.

The rule is a classic example of the federal agency’s resistance to cannabis reform. It states that legal hemp products can be converted to products containing more than 0.3% THC, the threshold established in the 2018 Farm Bill, thus becoming an illegal controlled substance.

Under the Interim Hemp Rule, the DEA could arrest and prosecute legal hemp processors if they are in possession of hemp or CBD oil that contains more than 0.3% THC at any time, even if only for a temporary moment in the extraction process. This creates a lot of criminal risk for hemp companies as it is an almost inevitable step in the extraction process.

Almost every state in the country has an established USDA-compliant hemp program and the NCIA believes the Interim Hemp Rule is in direct conflict with the USDA’s rulemaking authority. According to Aaron Smith, co-founder and chief executive officer of the NCIA, the DEA is overstepping its authority and going outside of its jurisdiction. “Given this agency’s history of doing everything in its power to maintain the criminalization of cannabis in any form, this rule was clearly not proposed to help the thousands of small farmers who are participating in approved hemp programs and could put them in unnecessary danger,” says Smith. “Failure to rescind it immediately is a clear violation of congressional intent and established law.”

You can view the NCIA’s full comments here.

Why Organic Should be the Future of CBD

By Josh Epstein
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The hemp industry is rapidly growing, but it’s no secret that it suffers from a major legitimacy problem. When manufacturers choose to certify their products and processes under a third-party agency, such as the USDA, it is a way for those companies to gain credibility with new customers.

USDA LogoThe USDA’s organic certification program is a great way to increase transparency and trust with both ingredients and processes used within the hemp industry. Organic certification is a rigorous audit program to review both manufacturing facility design and production process plans with the ultimate goal of increasing supply chain sustainability.

Investing in organic certification is a smart business decision – especially in today’s competitive CBD market. A recent Bloomberg report has shown that COVID-19 has actually accelerated organic food sales in the US due to increased demand for health-conscious foods and drinks. “Sales of organic food and drinks surged 25% during the 17-week period ended June 27,” according to Nielsen Data.

Organic certification is one way to differentiate between the thousands of seemingly identical CBD products being sold in the marketplace today. From a consumer perspective, organic certification provides both supply chain transparency and increases confidence with brands and products they already love. It also provides a form of quality assurance to skeptical consumers, especially those who avidly read product labels prior to making a purchasing decision. Members of this “label reader” demographic will consistently choose organic products for the quality and transparency it provides with pure and natural ingredients.

Not only does certification support ethical practices, it’s also good for business. According to the USDA, “Food labeling can be confusing and misleading, which is why certified organic is an important choice for consumers. Consumers are willing to pay a premium for food that carries the USDA organic seal, or that contains organic ingredients.”

Organic farming and production processes significantly contribute to increasing sustainability within the CBD industry. In general, organic farming is a growing practice for farmers across the US. According to the Pew Research Center, “There were more than 14,000 certified organic farms in the United States in 2016, according to the latest available data from the U.S. Department of Agriculture’s National Agricultural Statistics Service. This represents a 56% increase from 2011, the earliest comparable year.” The USDA has found that organic production practices can improve water quality, conserve energy, increase biodiversity and contribute to soil health. In terms of organic farming, soil ecology and water quality are both protected by farmers committing to working within regulated guidelines.

Organic certification ensures transparency and trust with a consumer-friendly approach to ingredient products. This comes on the heels of research showing that the CBD market lacks credibility. Organic CBD should be the next step all brands should take to ensure they’re adapting to changing consumer preferences.

Kaycha Labs Named Designated Lab for Florida’s Hemp Program

By Cannabis Industry Journal Staff
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Last week, Kaycha Labs, a cannabis testing laboratory company based in Florida, announced that they have executed an agreement with the Florida Department of Agriculture & Consumer Services (FDACS) to be the first “Designated Compliance Laboratory” for the state of Florida’s new hemp program.

As part of the agreement, Kaycha Labs will be procuring samples for the mandatory compliance testing program, as well as providing the required potency analysis for the Division of Plant Industry (an office under the FDACS).

The USDA recently approved the hemp program under the FDACS, and with that comes a host of regulations that producers need to follow.

Florida’s program requires a “designated approved representative” to go out in the field and collect compliance samples for testing from hemp licensees. Those samples then get tested to ensure they have less than 0.3% THC, per state and federal requirements.

Cynthia Brewer, vice president of Kaycha Labs, says this new regulatory framework will help a lot of stakeholders. “I am thrilled that Florida has created a regulatory framework that incorporates both well-defined procedures and high standards,” says Brewer. “Everyone benefits – consumers are protected and hemp producers become known for as- advertised, quality product. All of us at Kaycha are looking forward to working with both and the cultivators and the Department of Plant Industry.”

european union states

International Supply Chains: Considerations for European Imports

By Marguerite Arnold
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european union states

The recent decision in Germany on the reclassification of CBD (kudos to the European Industrial Hemp Association) as something other than “novel” has now opened an interesting new discussion in Germany and by extension, Europe.

It basically means that hemp plants, if they are European in origin, can be grown (under the right regulatory structure starting with organic) and even extracted without ever being considered a “novel food.”

Look for (hopefully) similar discussions now across Europe and the UK where the Food Safety Authority is also examining similar policies.

What this ultimately means, however, is that the market is clearly opening on the CBD front, but only for products that make the grade.

What should the average producer or manufacturer from North America think about when setting up a supply chain for export?

Regulations

Thanks to the new treaties in place between the United States, Canada and Europe right now, there are market openings in the cannabis industry in Europe. Starting with the fact that the cannabis bug has clearly hit the continent, but there is actually not enough regulated product to be found yet and just about anywhere.

This is keeping prices high right now, but do not expect that to last.

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Member states of the EU, pre-Brexit

Regardless, pricing of imports will not be like anything you have experienced if your background is state or even national market in the U.S. or Canada. There are higher regulations in every direction in Europe. Understanding how to translate the same into equivalencies that do not bankrupt you, overprice your products, or worse, get you in trouble with authorities is a critical first step, and not one to be taken lightly.

Get professional guidance from the country you are hoping to export to, at minimum. And that includes the legal kind. Every step of the way, you have to be certified with, at minimum, federal if not at an international certification.

No matter what cannabinoid is in the mix, this is ultimately a plant-based product. All rules one would normally think about when talking about other food products (for starters) are in the room.

While it is far from “this easy” (although thanks to the USDA’s decision about hemp, not to mention the FDA update on its own deliberations, there are now federal standards), think about the problem this way: If you were the world’s best chocolate bar, or even tomato juice, how would you hit Europe right now?

They have tomatoes here, and unbelievably great chocolate already. What is it about your offering that can stand out?  This is the million-dollar question. There are a few people and companies doing this right now, but it takes experience, and understanding the multiple regulatory guidelines involved. Once you figure that out, then you need to look at your supply chain, piece by piece and literally from the plant through end production for where you fit, and where you might not, into the regulatory discussion and market you hope to enter.

The Medical Discussion

There is now the possibility of exporting medical grade hemp and hemp extracts from the United States to Europe. However, everything must be GMP-certified to a medical standard, from organic production on up. This is an international standard, not an American one.

GMPThat qualification does not exist much in the cannabis industry in the United States (although ISO very much is) yet. Although it is dawning. On the Canadian side, there are plenty of companies in the discussion, because there is already a beaten path to export.

As the German cultivation bid proved, European certification, certainly is a high barrier to reach. Indeed, it is not only GMP certification in the room on the medical side but also rules about the import of all plant products.

From this perspective, it is also easier to import “finished” product rather than plant.

The Recreational Discussion

Before anyone gets too excited about recreational reform, the reality is that Europe is not going to step ahead of the UN (which has now pushed its next deliberation on the topic to the end of 2020). Yes, there are trials in a couple of places, but far from earth-shaking (recreational trials in the land of the coffee shop anyone?)

More interesting, of course, is what has just happened on the CBD side. But before American hemp farmers get too excited about this, they have hemp and farmers in Europe. And quite a few people have seen the light on this one already.

Sure New York state exports to Europe are probably in the offing, but so are hemp exports from the Southern states where the weather is warmer and the labor cheaper.

The European Union’s logo that identifies organic goods.

Certified labs, processing and extraction, and labelling are all in the mix. And every step must be documented as you go.

How to Proceed?

Whatever your crop or product is, take stock of the certifications you have now. If your plant was not organic, forget export anywhere. You are out of the international game.

However, with this taken care of, look at the certification requirements in Europe for extraction, processing and import of food and plant products and obtain production partners with the same – either in the US or abroad.

With luck, patience, skill and knowledge, yes, the doors are slowing opening, even to U.S.-based cannabis trade of the international kind.

Just don’t expect it to be easy, and leave lots of time for workarounds, pivots and even re-engineering at every point of the way.

Comparable to Organic: How This California Company Aims to Certify Cannabis

By Aaron G. Biros
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Cannabis that contains more than 0.3% THC is not eligible for USDA organic certification, due to the crop’s Schedule I status. While some hemp farmers are currently on the path to obtain a USDA organic certification, the rest of the cannabis industry is left without that ability.

Growers, producers, manufacturers and dispensaries that utilize the same practices as the national organic program should be able to use that to their advantage in their marketing. Ian Rice, CEO of Envirocann, wants to help cannabis companies tap into that potential with what he likes to call, “comparable to organic.”

Ian Rice, CEO of Envirocann & co-founder of SC Labs

Rice co-founded SC Laboratories in 2010, one of the first cannabis testing labs in the world, and helped develop the cannabis industry’s first testing standards. In 2016, Rice and his partners at SC Labs launched Envirocann, a third-party certification organization, focused on the quality assurance and quality control of cannabis products. Through on-site inspections and lab testing, Envirocann verifies and subsequently certifies that best practices are used to grow and process cannabis, while confirming environmental sustainability and regulatory compliance.

“Our backyard in Santa Cruz and the central coast is the birthplace of the organic movement,” says Rice. California Certified Organic Farms (CCOF), founded in Santa Cruz more than 40 years ago, was one of the first organizations in the early 1990s that helped write the national organic program.

“What we came to realize in the lab testing space and as the cannabis market grew, was that a lot of cannabis companies were making the organic claims on their products,” says Rice. “At the time, only one or two organizations in the cannabis space were making an attempt to qualify best practices or create an organic-type feel of confidence among consumers.” What Rice saw in their lab was not cannabis that could be considered organic: “We saw products being labeled as organic, or with certain claims of best practices, that were regularly failing tests and testing positive for banned chemicals. That really didn’t sit well with us.”

Coastal Sun Farms, Enviroganic-certified

At the time, there was no real pathway to certify cannabis products and qualify best practices. “We met with a few people at the CCOF that were very encouraging for us to adopt the national organic program’s standards for cannabis. We followed their lead in how to adopt the standards and apply a certification, building a vehicle intended to certify cannabis producers.”

Because of their background in lab testing they added the requirement for every crop that gets certified to undergo a site inspection, sampling, as well as a pesticide residue test to confirm no pesticides were used at all during the production cycle. One of their clients is Coastal Sun Farms, a greenhouse and outdoor cannabis producer. “They grow incredible products at a high-level, commercial scale at the Enviroganic standard,” says Rice. “They have been able to prove that organic cannabis is economically viable.”

The Envirocann certification goes a bit beyond the USDA’s organic program in helping their clients with downstream supply chain risk management tools (SCRM). “Because of the rigorous testing of products to get certified and go to market, we are getting way ahead of supply chain or production issues,” says Rice. “That includes greater oversight and transparency, not just for marketing the final product.”

A good example of using SCRM to a client’s advantage is in the extraction business. A common scenario recently in the cannabis market involves flower or trim passing the pesticide tests at the lab. But when that flower makes it down the supply chain to a manufacturer, the extraction process concentrates chemical levels along with cannabinoid levels that might have previously been acceptable for flower. “I’ve witnessed millions and millions of dollars evaporate because flower passed, but the concentrated final product did not,” says Rice. “We’ve introduced a tool to get ahead of that decision-making process, looking beyond just a pass/fail. With our partner labs, we look at the chromatograms in greater detail beyond regulatory requirements, which gives us information on trace levels of chemicals we may be looking for. It’s a really rigorous audit on these sites and it’s all for the benefit of our clients.”

Envirocann has also recently added a processing certification for the manufacturing sector and a retail certification for dispensaries. That retail certification is intended to provide consumers with transparency, truth in labeling and legitimate education. The retail certification includes an assessment and audit of their management plan, which goes into details like procurement and budtender education, as well as basic considerations like energy usage and waste management.

Fog City Farms, Envirocann-certified

While Envirocann has essentially adopted the USDA’s organic program’s set of standards for what qualifies organic producers, which they call “Enviroganic,” they also certify more conventional producers with their “Envirocann” certification. “While these producers might not be considered organic farmers, they use conventional methods of production that are responsible and deserve recognition,” says Rice. “A great example for that tier would be Fog City Farms: They are growing indoor with LED lighting and have multiple levels in their indoor environment to optimize efficiency and minimize their impact with waste and energy usage, including overall considerations for sustainability in their business.”

Looking to the future, Ian Rice is using the term “comparable to organic” very intentionally, preparing for California’s roll out of their own organic cannabis program. The California Department of Food and Agriculture (CDFA) is launching the “OCal Comparable-to-Organic Cannabis Program.” Envirocann is obviously using the same language as the CDFA. That’s because Envirocann aims to be one of the verifying agents under the CDFA’s new program. That program will begin on January 1, 2021.

The Growing Influence of Certified Organic in the European Cannabis Industry

By Marguerite Arnold
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There is a strange, if yet so far undetected, regulatory hum in the air right now in Europe that will begin to increasingly occupy those who are in the certified industry here or looking to get in.

And no, it’s not imminent “recreational,” although it will also have vast impact on the same.

A little understood regulatory structure (so far at least within the cannabis industry) called EU-BIO is now firmly in the room.

What that is and how it will impact the industry is already starting to show up in a few places (see the new announcement by the Swiss that their recreational trial will be organic). This is of course before any dates have even been decided upon for said trial (although others have been set up in the country for about a year).

Beyond this, there are vast implications for every part of the industry, THC or CBD, medical or “lifestyle” focused.

What is EU BIO?

All food in the European Union is regulated on a “federal” level much like in the United States. The difference in Europe however, is that every European “state” or country (like Germany, Spain or Holland) also then has their own regulatory structure which is also equal to the federal standards of the U.S. – including via treaty on both the pharmaceutical and “consumer” side. In general, as a result, regulations, including in all things cannabis space related, are much stricter in Europe.

What this also means, generally, is that all food, cosmetic and human-use lebensmittel (to use the German word for everyday consumer goods like food, cosmetics and lifestyle products) must pass through regulatory agencies that are very much like the USDA and FDA in every country and on a regional European level before being approved on a national sovereign one. Where those are, and who handles what, however, is a patchwork of agencies across the continent. There is no homogenization, in other words, for an organic producer looking for the right agency to get certification from in Germany and Austria.

The European Union’s logo that identifies organic goods.

The distinctive green logo that is omnipresent in particularly German grocery stores also comes with a few high standards of its own. Namely that the logo must appear on all pre-packaged EU food products claiming to be organic within the EU and all member states as well as all imports. Even more importantly, the logo cannot be placed on “transition” projects – namely those which are hoping to fulfil the regulatory standards but are not there yet.

To complicate matters even further, of course all product that ends up as EU GMP must begin life as an organic product. Forget pesticides – radiated product is a hot topic right now as well as its certification in the German medical market.

And that also means, by definition, that all cannabis production in Europe as well as products hoping to be sold via relatively normal channels, must also meet these certifications.

The only other option of course, is what is called “Novel Food.” And even here, thanks to changes in EU BIO on the table for the next couple of years, those who hope to gain access via this kind of labelling, still need to pay attention to organic production. No matter where you are. Or what you want to sell.

Are All “Organics” Made Equal?

Just as in the medical industry and GMP, the strictures of “certified organic” are supposed to be fairly straightforward, but are interpreted by different countries and regions.

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Member states of the EU, pre-Brexit

Generally speaking, however, national or even regional “organics” are not exactly the same. For example, Canadian “organic” is not the same as EU-BIO, starting with the fact that the plants in question are not necessarily of European origin (see the same logic here as behind Novel Food). In other words, there is no automatic equality, starting with the source of the seed. But there are also other issues in the room including processing.

That said, being organic is going to be the watchword of the industry. And in this, a bit surprisingly, the US will also have a lasting impact. Why? Because many countries want to export to the US (far from cannabis) and are required to adopt similar agricultural standards (see Latin America for starters).

Bottom line: it is better to be “green”, through and through, no matter where you are, or where you are from, in the global industry going forward. By the end of 2021, certified organic supply, at every level of the industry, won’t be a “choice” anymore.

USDA Announces Risk Management Programs for Hemp

By Aaron G. Biros
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According to a press release published earlier this month, the U.S. Department of Agriculture (USDA) announced two new programs available for hemp growers to mitigate their risk.

The first is called Multi-Peril Crop Insurance (MPCI), which is a pilot hemp insurance program designed to cover against “loss of yield because of insurable causes of loss for hemp grown for fiber, grain or Cannabidiol (CBD) oil.” The second plan is Noninsured Crop Disaster Assistance Program, which protects against losses from lower-than-normal yields, destroyed crops or “prevented planting” where permanent crop insurance is not available.

Both of the programs are now accepting applications and the deadline to apply is March 16, 2020. “We are pleased to offer these coverages to hemp producers. Hemp offers new economic opportunities for our farmers, and they are anxious for a way to protect their product in the event of a natural disaster,” says Bill Northey, Farm Production and Conservation Undersecretary.

The MCPI program is available for hemp producers in 21 states, according to the press release. Th program is available in certain counties in Alabama, California, Colorado, Illinois, Indiana, Kansas, Kentucky, Maine, Michigan, Minnesota, Montana, New Mexico, New York, North Carolina, North Dakota, Oklahoma, Oregon, Pennsylvania, Tennessee, Virginia and Wisconsin.

There are a handful of requirements to be eligible for that program, such as having one year of growing under their belt and have contracts in place for the sale of their crops. Hemp growers producing CBD must have at least 5 acres and hemp growers producing fiber must have at least 20 acres cultivated.

In 2021, the press release states, “hemp will be insurable under the Nursery crop insurance program and the Nursery Value Select pilot crop insurance program.” With those programs, hemp crops can be insured if grown in containers and in accordance with federal law.

To apply for any of these programs, hemp growers must have a license and must be totally compliant with state, tribal or federal regulations, or be operating under a state or university research plot from the 2014 Farm Bill. Growers need to report their hemp acreage to the Farm Service Agency, a division of the USDA.

The press release also mentions that if the crops have above 0.3% THC, the crop becomes uninsurable and ineligible for any of the programs.

Soapbox

Hemp in the United States: An Opinion

By Dr. Anthony Macherone
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The Agriculture Improvement Act, also known as the Farm Bill, was signed into law in December 2018. A major provision in the law legalizes hemp as an industrial crop. In August of 2016, USDA, DEA, and FDA published a Statement of Principles in the Federal Register (FR 53365) that defined industrial hemp as any part or derivative (including seeds) of the plant Cannabis sativa L. with a dry weight concentration of tetrahydrocannabinols not greater than 0.3% (wt/wt).

USDA LogoGlobally, the hemp market was estimated at $3.9 billion in 2017 and the hemp seed segment is predicted to grow “at a CAGR of 17.1%” through 2025. Some of the markets affected by hemp production include nutraceuticals, food, textiles, construction materials, and personal care products. It is also anticipated that cannabidiol (a non-psychoactive cannabinoid extracted from hemp) production will grow to support the burgeoning recreational and medicinal cannabis markets in the U.S., Canada and other countries around the world.

In U.S. states and Canada where recreational or medicinal marijuana programs have been legalized, regulations have been defined to assure the safety and quality of the products sold to consumers. These regulations include analytical chemistry and biological assays to identify and quantify pesticides, mycotoxins, heavy metals, residual manufacturing solvents, terpenes, and microbial contaminates. With regards to hemp, the USDA recently released guidelines for testing of hemp. To date, the only required test from the Federal perspective is total ∆9-tetrahydrocannabinol (THC) content < 0.3% by weight. Total THC is essentially the sum of tetrahydrocannabinolic acid (THCA) and THC (Total THC = 0.877(THCA) + THC) but this may be eventually expanded to include all salts and isomers of cannabinols as noted above. Another complication: what constitutes “dry”? The CFR does not answer this.

Agilent Technologies has invested in the development and implementation of the analytical protocol, the services needed to support these assays, the required consumables, reagents, and supplies, and the training of sales and support personnel to comprehensively ensure compliance of hemp with USDA regulations.

Multi-Element Analysis Using ICP-MS: A Look at Heavy Metals Testing

By Cannabis Industry Journal Staff
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Across the country and across the world, governments that legalize cannabis implement increasingly rigorous requirements for laboratory testing. Helping to protect patients and consumers from contaminants, these requirements involve a slew of lab tests, including quantifying the levels of microbial contaminants, pathogens, mold and heavy metals.

Cannabis and hemp have a unique ability to accumulate elements found in soil, which is why these plants can be used as effective tools for bioremediation. Because cannabis plants have the ability to absorb potentially toxic and dangerous elements found in the soil they grow in, lab testing regulations often include the requirement for heavy metals testing, such as Cadmium, Lead, Mercury, Arsenic and others.

In addition to legal cannabis markets across the country, the USDA announced the establishment of the U.S. Domestic Hemp Production Program, following the enactment of the 2018 Farm Bill, essentially legalizing hemp. This announcement comes with information for hemp testing labs, including testing and sampling guidelines. While the information available on the USDA’s website only touches on testing for THC, required to be no greater than 0.3% dry weight concentration, more testing guidelines in the future are sure to include a discussion of heavy metals testing.

Table 1. ICP-MS operating conditions (shaded parameters were automatically optimized during start up for the HMI conditions).

In an application note produced by Agilent Technologies, Inc., the Agilent 7800 ICP-MS was used to analyze 25 elements in a variety of cannabis and hemp-derived products. The study was conducted using that Agilent 7800 ICP-MS, which includes Agilent’s proprietary High Matrix Introduction (HMI) system. The analysis was automated  by using the Agilent SPS 4 autosampler.

Instrumentation

The instrument operating conditions can be found in Table 1. In this study, the HMI dilution factor was 4x and the analytes were all acquired in the Helium collision mode. Using this methodology, the Helium collision mode consistently reduces or completely eliminates all common polyatomic interferences using kinetic energy discrimination (KED).

Table 2. Parameters for microwave digestion.

As a comparison, Arsenic and Selenium were also acquired via the MassHunter Software using half-mass correction, which corrects for overlaps due to doubly charged rare earth elements. This software also collects semiquantitative or screening data across the entire mass region, called Quick Scan, showing data for elements that may not be present in the original calibration standards.

SRMs and Samples

Standard reference materials (SRMs) analyzed from the National Institute of Standards and Technology (NIST) were used to verify the sample prep digestion process. Those included NIST 1547 Peach Leaves, NIST 1573a Tomato Leaves and NIST 1575 Pine Needles. NIST 1640a Natural Water was also used to verify the calibration.

Figure 1. Calibration curves for As, Cd, Pb, and Hg.

Samples used in the study include cannabis flower, cannabis tablets, a cannabidiol (CBD) tincture, chewable candies and hemp-derived cream.

Sample Preparation

Calibration standards were prepared using a mix of 1% HNO3 and 0.5% HCl. Sodium, Magnesium, Potassium, Calcium and Iron were calibrated from 0.5 to 10 ppm. Mercury was calibrated from 0.05 to 2 ppb. All the other elements were calibrated from 0.5 to 100 ppb.

Table 3. Calibration summary data acquired in He mode. Data for As and Se in shaded cells was obtained using half mass correction tuning.

After weighing the samples (roughly 0.15 g of cannabis plant and between 0.3 to 0.5 g of cannabis product) into quartz vessels, 4 mL HNO3 and 1 mL HCl were added and the samples were microwave digested using the program found in Table 2.

HCI was included to ensure the stability of Mercury and Silver in solution. They diluted the digested samples in the same acid mix as the standards. SRMs were prepared using the same method to verify sample digestion and to confirm the recovery of analytes.

Four samples were prepared in triplicate and fortified with the Agilent Environmental Mix Spike solution prior to the analysis. All samples, spikes and SRMs were diluted 5x before testing to reduce the acid concentration.

Calibration

Table 4. ICV and CCV recovery tests. Data for As and Se in shaded cells was obtained using half mass correction tuning.

The calibration curves for Arsenic, Cadmium, Lead and Mercury can be found in Figure 1 and a summary of the calibration data is in Table 3. For quality control, the SRM NIST 1645a Natural Water was used for the initial calibration verification standard.  Recoveries found in Table 4 are for all the certified elements present in SRM NIST 1640a. The mean recoveries and concentration range can also be found in Table 4. All the continuing calibration solution recoveries were within 10% of the expected value.

Internal Standard Stability

Figure 2 highlights the ISTD signal stability for the sequence of 58 samples analyzed over roughly four hours. The recoveries for all samples were well within 20 % of the value in the initial calibration standard.

Figure 2. Internal standard signal stability for the sequence of 58 samples analyzed over ~four hours.

Results

In Table 5, you’ll find that three SRMs were tested to verify the digestion process. The mean results for most elements agreed with the certified concentrations, however the results for Arsenic in NIST 1547 and Selenium in both NIST 1547 and 1573a did not show good agreement due to interreferences formed from the presence of doubly-charged ions

Table 5. Mean concentrations (ppm) of three repeat measurements of three SRMs, including certified element concentrations, where appropriate, and % recovery.

Some plant materials can contain high levels of rare earth elements, which have low second ionization potentials, so they tend to form doubly-charged ions. As the quadrupole Mass Spec separates ions based on their mass-to-charge ratio, the doubly-charged ions appear at half of their true mass. Because of that, a handful of those doubly-charged ions caused overlaps leading to bias in the results for Arsenic and Selenium in samples that have high levels of rare earth elements. Using half mass correction, the ICP-MS corrects for these interferences, which can be automatically set up in the MassHunter software. The shaded cells in Table 5 highlight the half mass corrected results for Arsenic and Selenium, demonstrating recoveries in agreement with the certified concentrations.

In Table 6, you’ll find the quantitative results for cannabis tablets and the CBD tincture. Although the concentrations of Arsenic, Cadmium, Lead and Cobalt are well below current regulations’ maximum levels, they do show up relatively high in the cannabis tablets sample. Both Lead and Cadmium also had notably higher levels in the CBD tincture as well.

Table 6. Quantitative data for two cannabis-related products and two cannabis samples plus mean spike recovery results. All units ppb apart from major elements, which are reported as ppm.

A spike recovery test was utilized to check the accuracy of the method for sample analysis. The spike results are in Table 6.

Using the 7800 ICP-MS instrument and the High Matrix Introduction system, labs can routinely analyze samples that contain high and very variable matrix levels. Using the automated HMI system, labs can reduce the need to manually handle samples, which can reduce the potential for contamination during sample prep. The MassHunter Quick Scan function shows a complete analysis of the heavy metals in the sample, including data reported for elements not included in the calibration standards.

The half mass correction for Arsenic and Selenium allows a lab to accurately determine the correct concentrations. The study showed the validity of the microwave sample prep method with good recovery results for the SRMs. Using the Agilent 7800 ICP-MS in a cannabis or hemp testing lab can be an effective and efficient way to test cannabis products for heavy metals. This test can be used in various stages of the supply chain as a tool for quality controls in the cannabis and hemp markets.


Disclaimer: Agilent products and solutions are intended to be used for cannabis quality control and safety testing in laboratories where such use is permitted under state/country law.

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USDA Announces Hemp Regulations

By Aaron G. Biros
3 Comments
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This morning, U.S. Secretary of Agriculture Sonny Perdue announced the establishment of the U.S. Domestic Hemp Production Program. The program, as stipulated by Congress in the 2018 Farm Bill, will establish a regulatory framework for hemp production in the country.

Secretary Perdue made the announcement in a YouTube video titled “USDA’s Hemp Policy.” Later in the week, an interim final rule formalizing the program will be published in the Federal Register, according to the USDA’s website. “The rule includes provisions for the U.S. Department of Agriculture (USDA) to approve hemp production plans developed by states and Indian tribes including: requirements for maintaining information on the land where hemp is produced; testing the levels of delta-9 tetrahydrocannabinol; disposing of plants not meeting necessary requirements; and licensing requirements,” reads the press release. “It also establishes a federal plan for hemp producers in states or territories of Indian tribes that do not have their own approved hemp production plan.” The interim final rule will go into effect as soon as it is published in the Federal Register, which should be by the end of this week.

You can find a preview of the rule here. The agency has also developed guidelines for sampling and testing procedures, which you can find here. Those documents are meant to provide more information for hemp testing laboratories.

You can watch the YouTube video and read the announcement he made below:

Hello everyone, as I travel across this great country of ours, I hear a lot about a strong interest in a new economic opportunity for America’s farmers: the production of hemp. Which is why today I am pleased to announce the USDA has published the rule establishing the US domestic hemp production program. We said we’d get it done in time for producers to make planning decisions for 2020 and we followed through. We have had teams operating with all hands-on-deck to develop a regulatory framework that meets Congressional intent while seeking to provide a fair, consistent and science-based process for states, tribes, and individual producers who want to participate in this program. As mandated by Congress, our program requires all hemp growers to be licensed and includes testing protocols to ensure that hemp grown under this program is hemp and nothing else. The USDA has also worked to provide licensed growers access to loans and risk management products available for other crops. As the interim final rule, the rule becomes effective immediately upon publication in the federal register. But we still want to hear from you. Help us make sure the regulations meet your needs. That’s why the publication of the interim final rule also includes a public comment period continuing a full and transparent rulemaking process that started with a hemp listening session all the way back in March 2019. At USDA, we are always excited when there are new economic opportunities for our farmers and we hope the ability to grow hemp will pave the way for new products and markets. And I encourage all producers to take the time to fully educate themselves on the processes, requirements and risk that come with any market or product before entering this new frontier. The Agricultural Marketing Service will be providing additional information, resources and educational opportunities on the new program. And I encourage you to visit the USDA hemp website for more information. As always, we thank you for your patience and input during this process.