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December 08, 2020
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.
September 24, 2020
An argument for moving away from traditional culture-based methods and towards employing methods with increased specificity and accuracy.
May 13, 2020
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?
March 06, 2020
Part I of this article series focuses on the physiology of heavy metal transport and translocation into and within plant tissues.
December 18, 2019
A case study that demonstrates the utility and necessity of environmental screening in a cannabis production and processing facility.
December 16, 2019
The world of fungi, mold, and mycotoxins is explored and discussed.
Use the techniques described here to pass the state tests and ensure safe cannabis for consumers.
October 25, 2019
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.
October 24, 2019
Here we look at different sources of potential contamination exposure that may be of concern to both the cannabis industry and the cannabis consumer.
October 07, 2019
Scientists and testing experts discuss contaminant issues in the wake of a widening vaping emergency
August 21, 2019
This review article from an experienced pharmaceutical microbiologist discusses the risks of microbial contamination for the full range of cannabis-derived products and recommends the most appropriate microbiological quality requirements for each product.
An explanation on the theory and measurement of water activity, its mode of action for microbial control, existing water activity regulations for cannabis, and more.
June 11, 2019
Cannabis laboratories can get different results on identical samples. In this article, the author explains solutions to those problems.
April 04, 2019
Too often, cannabis laboratories get different results on the same sample. There are a number of causes and solutions. In this installment, the problem is presented along with its causes.
September 24, 2018
An outline of some of the current major challenges for both regulators and laboratories regarding the microbial testing of cannabis products.
September 21, 2018
How two different LC–MS/MS methods with ESI and APCI were used for low-level analysis of 72 pesticides
A look at the the basic principles of the major types of microwave digestion technology as well as suggestions as to which might be the best approach based on sample matrix, digestion efficiency, sample throughput, productivity, and overall cost of analysis.
August 06, 2018
June 19, 2018
March 01, 2018