Contaminants

Articles

This article takes a look at the major atomic spectroscopy techniques and compares their performance characteristics and in particular examines the limits of quantitation for the four heavy metals (Pb, As, Cd, and Hg) currently being regulated in cannabis and hemp by most states in the US.

Measuring Heavy Metals in Cannabis: What Atomic Spectroscopic Technique Is Right for Your Laboratory?

An argument for moving away from traditional culture-based methods and towards employing methods with increased specificity and accuracy.

Budtender: Is That a Harmful Mold in My Bud?

What are some clear-cut methods to recognizing signs and certain types of contamination that can minimize risk and maximize production of pure, clean cannabis?

Azulenes: A Clear Sign of Cannabis Oil Contamination

Part I of this article series focuses on the physiology of heavy metal transport and translocation into and within plant tissues.

Back to the Root-The Role of Botany and Plant Physiology in Cannabis Testing, Part I: Understanding Mechanisms of Heavy Metal Uptake in Plants

A case study that demonstrates the utility and necessity of environmental screening in a cannabis production and processing facility.

Environmental Screening of a Cannabis Production and Processing Facility:  A Comparison of an Environmental DNA Microarray and Traditional Microbiological Plating Methods

Patricia Atkins is a Senior Applications Scientist with SPEX CertiPrep and a member of both the AOAC and ASTM committees for cannabis.

The world of fungi, mold, and mycotoxins is explored and discussed.

Beyond Potency:  Fungi, Mold, and Mycotoxins

Use the techniques described here to pass the state tests and ensure safe cannabis for consumers.

It’s Not Too Late: Post-Harvest Solutions to Microbial Contamination Issues

A robust method for identifying heavy metals in cannabis samples using ICP-MS is discussed as well as highlights of the importance of sample preparation methods for a wide range of cannabis products.

Multielement Analysis of Heavy Metals in Cannabis Samples Using ICP-MS

Here we look at different sources of potential contamination exposure that may be of concern to both the cannabis industry and the cannabis consumer.

Beyond Potency: The Importance of Measuring Elemental Contaminants in Cannabis and Hemp

David Hodes has written for many cannabis publications, and organized or moderated sessions at national and international cannabis trade shows. He was voted the 2018 Journalist of the Year by Americans for Safe Access, the world’s largest medical cannabis advocacy organization.

Scientists and testing experts discuss contaminant issues in the wake of a widening vaping emergency