LC–MS

The discovery of a novel lipid not yet seen in plants was found in four herbal teas using multivariate principal component analysis.

In this interview, Kevin Schug discusses his work using untargeted analysis and differentiation of psilocybin mushroom strains.

This month we interview David Steiner, head of product development at LVA GmbH–Lebensmittelversuchsanstalt in Klosterneuburg, Austria about his work developing liquid chromatography–tandem mass spectrometry (LC–MS/MS) multiclass methods for classification of feedstuff, including replication of model complex feedstuffs in the analytical laboratory.

The 26th Norwegian Symposium on Chromatography was held 21–23 January 2024. The symposium has strong traditions in the Norwegian separation science community, serving as a forum for excellent scientific talks, networking, and social events.

A study has used gas chromatography coupled to a time-of-flight mass spectrometer to build an electron ionization mass spectra database of more than 250 chemicals classified as either volatile or semi-volatile compounds. An additional, confirmatory layer of liquid chromatography–mass spectrometry analysis was subsequently performed.

Scientists recently tested a new system for detecting and extracting favipiravir from plasma samples.

Scientists from the Affiliated Hospital of Putian University recently analyzed the dysregulation of lipid metabolism in patients suffering from chronic hepatitis B patients.

This week, LCGC International published a variety of articles on the hottest topics in chromatography and beyond. Below, we’ve highlighted some of the most popular articles, according to our readers. Happy reading!

In this edition of “Inside the Laboratory,” Kevin Schug, PhD, a full professor of chemistry at the University of Texas at Arlington, discusses his laboratory’s group work in environmental monitoring around water and soil quality near oil and gas extraction, using techniques such as liquid chromatography (LC), gas chromatography (GC), supercritical fluid chromatography (SFC), and coupling these techniques with mass spectrometry (MS).

In a recent study from the GITAM School of Pharmacy, two scientists used different liquid chromatography techniques to assess the properties of ozenoxacin (OXC) and its degradation products.

In a recent review article, researchers from Concordia University examined recent advancements in LC–MS workflows for tissue lipidomics.

Webinar Date/Time: Thu, Apr 4, 2024 10:00 AM EDT

In a recent study, researchers from the Chinese Academy of Medical Sciences and Peking Union Medical College used liquid chromatography–mass spectrometry (LC–MS) to gain further insight into tumor metabolism.

In a recent study out of Central South University in Changsha, China, scientists tested different cosine similarity algorithms to test for illegal adulterants in drugs.

Here are the top five articles that the editors of LCGC International published this week.

In a recent study, scientists tested how effective dynorphin 1-17 peptides can be in treating chronic rhinosinusitis with nasal polyps (CRSwNP).

Webinar Date/Time: Thu, Apr 4, 2024 11:00 AM EDT

A recent study explores how chromatographic methods are being used to detect new psychoactive substances (NPS).

A recent study dissects a Chinese herbal medicine to determine why it is effective in treating polycystic ovary syndrome (PCOS).

A group of Canadian scientists recently measured how effective different solutions are in measuring ochratoxin A levels in flour samples.

Scientists from Hangzhou, China used ultra-performance liquid chromatography mass spectrometry and non-targeted metabolomics studies to help find treatments for colorectal cancer.

This article describes a liquid chromatography–tandem mass spectrometry (LC–MS/MS) method for the analysis of coumarin in various tobacco matrices and electronic cigarette (E-cig) liquids, and highlights the importance of evaluating different MS/MS transitions of an analyte in complex sample matrices to overcome matrix effects. Matrix interfering components were separated from analyte using a C18 ultrahigh-pressure liquid chromatography (UHPLC) column with a larger inner diameter (3.0 mm, or 4.6 mm). Matrix suppressions on analyte responses were corrected by isotope dilution. Four different MS/MS transitions of coumarin were studied in each sample matrix to select a suitable MS/MS transition for analyte quantification based on matrix effects on each MS/MS transition. The method was validated using different tobacco matrices and E-cig liquids.

Webinar Date/Time: Thu, Mar 28, 2024 11:00 AM EDT

Scientists from Murcia, Spain recently created a new method for mycotoxin screening in human tissues using dispersive liquid–liquid microextraction and liquid chromatography–mass spectrometry.

Sara E. Kern and her team of the U.S. Food and Drug Administration (FDA) tested different analysis methods for rapidly screening for poppy seeds in food samples.