John Chasse

Ultrahigh-performance liquid chromatography–high-resolution tandem mass spectrometry (UHPLC-HRMS/MS) reveals a chemical imbalance behind alcohol-positive milk.

Ultrahigh-performance liquid chromatography–ion mobility–quadrupole time-of-flight mass spectrometry (UHPLC–IM–QTOF MS) reveals seasonal chemical fingerprints in Scottish honey.

Markes International’s vacuum-assisted HiSorb extends analyte coverage for gas chromatography.

Gold-enhanced thin-layer chromatography–surface-enhanced Raman scattering (TLC–SERS) identifies toxic aromatics in firefighting water.

Five years after its founding, the Hungarian developer of centrifugal partition chromatography is making the case that liquid–liquid separation belongs on the analytical bench as well as the production floor.

Liquid chromatography–tandem mass spectrometry (LC-MS/MS) links a teenager's death in Japan to swallowing a fentanyl skin patch.

A two-dimensional gas chromatography (GC×GC) study of 43 volatiles shows hexanal alone cannot gauge hazelnut aging.

High-performance liquid chromatography–tandem mass spectrometry (HPLC-MS/MS) was used in a reverse triiodothyronine (rT3) test to separate canine hypothyroidism from illness.

Quantera Analytical’s Terry Bates discusses parallel headspace extraction for gas chromatography-mass spectrometry (GC–MS) and direct analysis in real time–mass spectrometry (DART–MS) analysis.

Christopher Chouinard of Clemson University discusses with LCGC International how derivatization reshapes steroid mass for sharper liquid chromatography-ion mobility-mass spectrometry (LC-IM-MS) separations.

Gas chromatography (GC) tests show spoilage yeasts alter flavor and raise alcohol in NoLo beer.

Liquid chromatography–tandem mass spectrometry (LC–MS/MS) finds low glyphosate residues of the weedkiller glyphosate in coffee beans.

This week, Chromatography Online explored how the technique is advancing wastewater drug monitoring, siRNA method development, and food safety testing, with previews of RAFA 2026 and a return to HPLC fundamentals with Michael Dong.

Ultrahigh-performance liquid chromatography–quadrupole time-of-flight mass spectrometry (UHPLC–QTOF-MS) shows how soaking and cooking break down soybean fats.

Liquid chromatography–tandem mass spectrometry (LC–MS/MS) links altered metabolism to lingering symptoms in Ebola survivors.

Franz Berthiller (BOKU University, Austria) discusses a multilaboratory study that used retention index markers to align mycotoxin liquid chromatography–mass spectrometry (LC–MS) data.

A QuEChERS/ultrahigh-performance liquid chromatography and high-resolution mass spectrometry (UHPLC-HRMS) method tracks 23 plant toxins in cereals and spices. Michele Suman discusses the method with LCGC International.

Gas chromatography-mass spectrometry (GC-MS) study links 110 scent compounds to cinnamon variety and origin.

Affinity chromatography-purified viral protein powers a new FAdV-8b test for chickens.

A three-year study of medical students and doctors in training tracked burnout symptoms alongside inflammation markers and morning cortisol and cortisone levels in saliva, measured by liquid chromatography–tandem mass spectrometry (LC–MS/MS), to better understand the biology of burnout.

Data-independent acquisition (DIA) liquid chromatography-tandem mass spectrometry (LC–MS/MS) reveals shared and site-specific proteins across the thighbone.

Magnetic molecularly imprinted polymer extraction with liquid chromatography-high resolution mass spectrometry (LC–HRMS) finds patulin in store-bought juice.

Richard Bade and Malcolm McLeod explain to LCGC International how liquid chromatography-tandem mass spectrometry (LC-MS/MS) detects drug trends in wastewater.

Liquid chromatography–tandem mass spectrometry (LC–MS/MS) and microbiome data reveal kidney markers of diabetic disease.

Ultrahigh-performance liquid chromatography–tandem mass spectrometry (UHPLC-MS/MS) shows Maresin1 drops in heatstroke and may protect the heart.

This week on Chromatography Online, leading experts shared practical insights with LCGC International on sustainable affinity methods, siRNA impurity profiling, nontarget screening, peptide tech transfer, and AI in separation science.

Liquid chromatography–mass spectrometry (LC–MS) was used to determine if there is a link between artificial sweeteners and breast cancer.

Chiral gas chromatography–mass spectrometry (GC–MS) shows how heat and storage alter linalool in blueberry juice.

Skipping solid-phase extraction (SPE) cleanup rarely hurt liquid chromatography–tandem mass spectrometry (LC–MS/MS) plant hormone results in tomato.

Gas chromatography–mass spectrometry (GC–MS) and docking reveal A. excelsa leaf compounds that may help in cancer treatment.