John Chasse

Targeted liquid chromatography-mass spectrometry (LC-MS) metabolomics identifies plasma biomarkers for lung cancer screening.

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) reveals how soccer training intensity shifts athletes' hormone levels.

Gas chromatography-mass spectrometry (GC-MS) analysis of 90 basil varieties identifies top chemotypes for industrial use.

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) urinary analysis ties volatile organic compound (VOC) and polycyclic aromatic hydrocarbon (PAH) exposure to oxidative stress in children.

This gas chromatography-quadrupole orbital trap high-resolution mass spectrometry (GC-Q-Orbitrap HRMS) method detects 215 pesticides in high-fat peanut matrices reliably.

Liquid chromatography-mass spectrometry (LC-MS) tracks gut bacteria activity before and after cognitive behavioral therapy treatment for social anxiety disorder.

Mass spectrometry–based techniques, including cross-linking and covalent labeling, were used to show how phosphorylation and oxidation alter alpha-synuclein structure, providing insight into how these modifications may influence aggregation and neurodegenerative disease. LCGC International spoke to Ian Webb, corresponding author of a paper that resulted from this research.

Gas chromatography-mass spectrometry (GC-MS) headspace analysis identifies dimethyl disulfide as a microbial marker in spacecraft wastewater.

This week’s LCGC International website offerings span AI, food, forensics, and clinical therapy.

Gas chromatography coupled with mass spectrometry and ion mobility spectrometry was used to identify volatile compounds shaped by fermentation time and drying temperature in black tea.

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) reveals fasting alters phthalate levels, with higher exposure linked to type 2 diabetes.

A two-part session on biopharmaceutical analysis will be held at HPLC 2026 on Monday, June 8.

High-performance liquid chromatography (HPLC) reveals how cherry variety, tissue type, and freezing method affect beneficial compound levels.

A dual isotope dilution tandem mass spectrometry (IDMS) method reliably detects 24 pesticides in cucumbers, revealing widespread safety limit breaches.

High-performance liquid chromatography (HPLC) measured blood dopamine in Parkinson's patients on LCE or LB, revealing no significant difference.

Gas chromatography-tandem mass spectrometry (GC-MS/MS) reveals first-trimester phthalate exposure impairs fetal growth, worsened by maternal stress.

Chromatography and spectrometry techniques reveal how high-heat cooking alters fatty acid profiles in three vegetable oils.

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) reveals widespread PFAS, bisphenols, parabens, and benzophenones in Andalusian household dust.

Researchers studied oxygenated species formation in nitazene analogs via DART-MS to improve forensic drug screening and address the opioid crisis. LCGC International spoke to Emma Hardwick, lead author of the paper that resulted from this work.

Gas chromatography-mass spectrometry (GC-MS) reveals cultivation-driven shifts in volatile organic compound (VOC) profiles of vanilla orchids without loss of compound diversity.

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) quantification of deflazacort metabolites in urine and plasma validates the World Anti-Doping Agency's 30 ng/mL detection threshold.

Using two-column chromatography, a 63.6-fold purified cold-active amylase from potato peel waste shows strong starch-processing potential.

Headspace solid-phase microextraction gas chromatography-mass spectrometry (HS-SPME-GC-MS) identified key aroma compounds differentiating peaches and nectarines by flesh type.

Researchers used orbital ion trap liquid chromatography-tandem mass spectrometry (LC-MS/MS) to separate and identify proteins in human eye lens fiber cells.

DEAE-cellulose and gel filtration chromatography purify a selective B. stercoris milk-clotting protease.

Discover the latest advances in metabolomics, LC–MS workflows, spectral libraries, and untargeted analysis during this morning session featuring researchers from academia, government, healthcare, and industry.

Join analytical scientists and instrument experts for a dynamic session showcasing the latest innovations in GC–MS instrumentation, high-throughput workflows, untargeted analysis, and trace-level detection technologies.

Untargeted liquid chromatography-mass spectrometry (LC-MS) and molecular networking reveal seasonal pollutant shifts and emerging contaminants in South Africa’s Nylsvley wetland.

Gas chromatography-mass spectrometry (GC-MS) quantified para-chloroaniline (PCA) formed in root canals, with sodium ascorbate as a final rinse proving most effective.