Patrick Lavery is an Editor for the MJH Life Sciences brands LCGC and Spectroscopy, and their respective websites, chromatographyonline.com and spectroscopyonline.com. He previously spent nearly a decade as a news anchor, reporter, and producer at New Jersey 101.5 FM.
Q&A: FDA Talks to LCGC About Chromatographic Techniques for PFAS Detection in Food Supply
October 13th 2023FDA scientists have expanded the number of analytes in their analytical method for per- and polyfluoroalkyl substances (PFAS), partly in response to updated guidance out of the European Union (EU) on method parameters and limits of quantification (LOQs).
Review of Portable X-ray Fluorescence in Analysis Applications for Solid and Liquid Food Samples
September 10th 2023This report not only focused on the different types of portable X-ray fluorescence (pXRF) spectrometers available, but also their capacities for limits of detection and quantification (LOD and LOQ, respectively), linearity, and calibration strategies.
Known and Novel Proteins in Pseudomonas stutzeri Detected by Bottom-Up Proteomics
August 18th 2023The combination of the “bottom-up” approach with digest-free, direct-sequencing proteomics, along with the addition of a proteogenomics pipeline that identified missing data, yielded the determination of almost 3000 proteins.
Review of Packed Sorbent Solid-Phase Extraction and Microextraction Methods From Manual to Automated
August 15th 2023Studies published over the last five years have focused on fully or semi-automated approaches and their applications in extraction of both organic and inorganic pollutants, while modern robotic tools and 3D printing are starting to make impacts.
Enantioselectivity in LC Evaluated by Variations in Modifiers and Modifier Concentration
August 11th 2023Since similar chiral recognition mechanisms were observed for benzoin (B) and methyl mandelate (MM), a three-site enantioselectivity model was proposed to interpret the data being sought by researchers.
CIL-UHPLC–HRMS Profiles Carbonyl Compounds in Baijiu Daqu Samples
July 27th 2023Sauce-flavor or sauce-aroma baijiu, one variant of a popular Chinese liquor, is treated with a fermentation starter called daqu, giving the concoction a unique taste profile, and scientists want more information about how it can inform the manufacturing of higher-quality baijiu.
Separation Techniques for PFAS Quantitation and Dietary Intake from Food Packaging
July 25th 2023In a presentation at NACRW 2023, Yelena Sapozhnikova of the U.S. Department of Agriculture (USDA) explained that even though levels of per- and polyfluoroalkyl substances (PFAS) were found in everything from tomato packaging to cake paper in global samples, values were below the European Food Safety Authority (EFSA)’s maximum tolerable weekly intake (TWI).