Special Issues-04-01-2021

Rapid Rinse and Shoot: A Screening Workflow for Pesticides in Fruit by GC–MS in Under Six Minutes Using Library Searching of Deconvoluted Spectra

April 07, 2021

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Trace-level pesticides and environmental pollutants in the food supply continue to be a worldwide concern. Here we present a fast-screening workflow for residual pesticides present on the surface of fruits using a GC–MS system with direct heating technology and MS spectral deconvolution.

Analysis of 12 Regulated Mycotoxins in 8 Food Matrices by Single Immunoaffinity Cleanup and Isotope Dilution LC–MS/MS

April 01, 2021

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Mycotoxins are toxic metabolites produced by fungal species often found in agricultural products. An accurate method for analyzing 12 regulated mycotoxins is described using UHPLC–MS/MS. The method demonstrated limits of quantitation (LOQs) for all analytes below stringent regulatory limits, making the method suitable for routine mycotoxin analysis.

Molar Mass Determination of Collagen Peptides

April 01, 2021

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Hydrolyzed collagens (collagen peptides) are water-soluble products obtained by hydrolysis of natural proteins and used for dietary supplements. A simple GPC/SEC method is described for molar mass determination of collagen peptides, allowing reliable molar mass determination using ultraviolet (UV) detection.

Fully Automated QuEChERS Extraction and Cleanup of Organophosphate Pesticides in Orange Juice

April 01, 2021

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A fully automated quick, easy, cheap, effective, rugged, and safe (QuEChERS) extraction and extract clean-up method is described for analysis of organophosphate pesticides in orange juice. This method uses GC–MS and LC–MS along with an industry standard robotic x,y,z-sampling system.