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Rescheduling a Schedule I substance, and the Delta-8 controversy

Rescheduling a Schedule I substance, and the Delta-8 controversy

Did you know that in the US, drugs and other chemicals are classified into 5 distinct categories depending on the drug’s acceptable medical use and its potential for abuse or dependency?  Drugs federally classified as Schedule I substances by the US Drug Enforcement Administration (DEA) are considered to have the highest potential for abuse and for creating severe psychological and/or physical dependence. In addition to heroin, LSD and MDMA (ecstasy), cannabis is classified as a Schedule I substance in the Controlled Substance Act of 1970, which means it has no approved medical usage.

The pros and cons of using solid phase extraction and direct injection methods for PFAS testing

The pros and cons of using solid phase extraction and direct injection methods for PFAS testing

US Environmental Protection Agency (EPA) and Department of Defense (DoD) methods for testing per- and polyfluoroalkyl substances (PFAS) in drinking water require using solid phase extraction (SPE). SPE has been used extensively in environmental contaminant analysis both for concentrating large sample volumes (improving method sensitivity) and removing matrix interferences (sample cleanup).

7600 EAD and Zeno trap a powerful combination

7600 EAD and Zeno trap a powerful combination

A powerful combination: The Zeno trap and electron activated dissociation (EAD) fragmentation

Sensitivity is a fundamental performance characteristic of a mass spectrometer. Increasingly higher sensitivities are in constant demand in order to characterize and quantify analytes that are at an ever decreasing abundance.

Identifying the unknown PFAS profile in firefighting foams/AFFF

Identifying the unknown PFAS profile in firefighting foams/AFFF

According to a recent study from Harvard University, the US EPA, and NIEHS, traditional targeted analysis techniques poorly characterize the PFAS composition of contemporary PFAS-based firefighting foams, know as aqueous film-forming foams (AFFF).  Using the EPA 533 PFAS drinking water method for the analyte list, the researchers found that targeted mass spectrometry methods accounted for <1% of organic fluorine content.  This is important because it demonstrates that targeted analysis methods miss nearly all the PFAS compounds in modern AFFF mixtures, thus underestimating the risk to human health and the environment.

Is it raining PFAS?

Is it raining PFAS?

It certainly is in the Great Lakes. According to raw data from the US EPA-Canada Great Lakes monitoring program, there has been a growing prevalence of  per- and polyfluoroalkyl substances (PFAS) in rainwater in the Great Lakes basin.

Thailand cannabis legalization

Thailand cannabis legalization

Thailand has become the first southeast Asian country to legalize cannabis for medical use. Cannabis was originally introduced into Thailand from India, and until it was outlawed in the 1930s, it was historically used as a kitchen condiment, medicine and source of fiber.

The risky business of aflatoxins in milk

The risky business of aflatoxins in milk

If you’re in the dairy or food testing business, you know the threat aflatoxins pose. Aflatoxins are a type of mycotoxin produced by Aspergillus parasiticus, aspergillus flavus , and rarely aspergillus nomius.1 These are likely the most extensively researched group of mycotoxins because of their adverse health effects.2 What’s more, they are widely found in a variety of crops, namely maize, tree nuts, and spices. Believed to be primarily caused by rising temperatures and humidity, these naturally occurring fungi grow on crops in the field, or during storage of feed and raw materials, where they can potentially produce toxins that enter the food chain.