Pesticides and Heavy Metals

Analyte Protectants for Cannabis Pesticides Analysis via GC/MS/MS
Presented By: Rafael Acosta, PhD

Pesticides analysis in Cannabis products via GC/MS/MS can sometimes be challenging if the right approach is not considered. In this talk we will explore the utilization of analyte protectants in order to ensure the analyte responses are reproducible and maximum sensitivity is achieved. We’ll discuss some tips and tricks to enable customers who may be experiencing less than desirable results. A few of the topics to be discussed in this session include:

o GC Injection Techniques
o Sample Preparation
o MS Instrument Optimization。

Pesticide cleanup using QuEChERS and SPE
Presented By: Katherine Stenerson,PhD

In this session, you will learn about using a quick, inexpensive and easy technique called solid phase microextraction (SPME) to look at terpene profiles of cannabis. We will demonstrate how to assemble an SPME device and do a quick sampling from hemp buds. The device will then be analyzed
using GC/MS, which will allow us to make tentative identifications of the terpenes based on their spectra. You will see the benefits SPME has to offer with regards to cost, portability and environmental friendliness when compared to other extraction techniques.

LC-MS analysis of pesticides using SILs
Presented By:Geoffrey Rule, PhD

The importance of understanding matrix suppression effects in electrospray ionization LC-MS is well known. This training describes how to perform studies to characterize matrix effects from a given sample type and suggests possible remedies. One remedy is to make use of stable isotopically labelled internal standards. Other possible remedies involve adjusting chromatographic conditions to reduce matrix effects and improving sample clean-up.