App Notes

The accidental or fraudulent blending of meat and animal products from different species is highly relevant for consumers with ethical concerns against eating species such as horse or pork in particular the Jewish and Muslim communities.

Increasing selectivity with high-resolution multiple reaction monitoring (MRMHR) improves the signal-to-noise ratio for better accuracy, dynamic range, and LLOQ when quantitating isobaric prostaglandin-D2α isoforms

Using SelexION™ Differential Mobility Separation Technology for better selectivity for peptides in complex mixtures on the AB SCIEX Triple Quad™ 5500 LC/MS/MS System

The high resolution and accurate mass AB SCIEX TripleTOF™ 4600 LC/MS/MS system was used to screen for drugs from forensic equine urine, and to quantify drug compounds with excellent accuracy and high reproducibility. Fast Information Dependent Acquisition (IDA) MS/MS spectra were used to additionally confirm the identity of detected compounds based on mass spectral library searching.

This application note describes a novel screening method for major metabolites of two main active ingredients of K2: JWH-018 and JWH-073.

Exposure to air pollutants has for many years been recognised as a major cause of health problems. Historically, pollutants from vehicle exhaust and the burning of fuels were of primary concern, but as urban air quality has generally improved, attention has shifted to vehicle interior air quality (VIAQ).

This technical brief aims to demonstrate the performance of GC-MS using hydrogen carrier gas. Here we compare the performance of hydrogen and helium for the analysis of a complex mixture.

Screening and quantitation of pesticide residues in fruits and vegetables is of utmost importance for public health and safety concerns.

Plastic tubing is available in a variety of opacities ranging from clear to translucent. The transparency of plastic tubing varies for reasons such as providing contrast for visual monitoring of fluid flow, decreasing exposure to ambient light, and making the tubing more distinct for machine vision technology. Visible-NIR transmission spectroscopy is used to assess the amount of frosting applied to plastic tubing to determine if the tubing meets the required opacity level.

This application note describes the extraction of THC, THCA and Carboxy-THC from oral fluid matrix collected using the Quantisall™ (Immunalysis) device, prior to GC/MS analysis.