Chromatography Techniques

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

Articles

A deeper look into the chemistry, physics, and methodology of HPLC methods.

Looking with Light: Breaking Down Liquid Chromatography Method Development

From simple separations to detailed wavelength analysis, we examine the important concepts and techniques needed to make liquid chromatography work its best in the laboratory.

Looking with Light: Understanding the Principles of Analytical Liquid Chromatography

Keystone Labs is an accredited testing facility with a good manufacturing practice (GMP) establishment license. Jodi McDonald, president and founder of Keystone Labs, based in Edmonton Alberta, Canada discusses their role in the industry.

Quality Matters: A Chat with Keystone Labs President, Jodi McDonald

A rapid LC–MS/MS method is presented for the quantitative analysis of 16 cannabinoids in hemp samples with a single dilution protocol.

Rapid Analysis of 16 Major and Minor Cannabinoids in Hemp Using LC–MS/MS with a Single Sample Dilution and Injection

is a Senior Scientist at Agilent Technologies and a Visiting Professor at The Johns Hopkins University School of Medicine in Baltimore, Maryland.

This article focuses on the use of GC–MS for the analysis of derivatized cannabinoids in hempseed oil matrix.

A Brief Review of Derivatization Chemistries for the Analysis of Cannabinoids Using GC–MS

AOAC Approves LC-DAD Method for Cannabinoids Detection and Analysis in Hemp

is an Application Scientists with Agilent Technologies in Wilmington, Delaware.

This study highlights a potential concern for the quantitation of acid phytocannabinoids.

The Stability of Acid Phytocannabinoids Using Electrospray Ionization LC–MS in Positive and Negative Modes

Higher Education: It’s Not Just a Pipe Dream Anymore

In this study, six different brands of CBD oil pet supplements were obtained and untargeted analyses using gas phase-time of flight mass spectrometry were performed.

GC-TOF Discovery-Based Profiling of CBD Oil Pet Supplements 

A study using LC-qTOF, GCqTOF, and GC–MS/MS to evaluate the selectivity of a model pesticide commonly found in regulatory target lists.