John Chasse

Liquid chromatography–ion mobility spectrometry–high-resolution mass spectrometry (LC–IMS–HRMS) shows elephant seal pups carry more PFAS than their mothers do.

Gas chromatography–mass spectrometry (GC–MS) and omics profiling distinguish duck and goose foie gras composition.

This week's Chromatography Online highlights include olive waste antioxidant recovery, food and tea analysis, EV isolation, mRNA vaccine purification, perfusion chromatography for oligonucleotides, mass spectrometry in teaching and career advice from “Women in Chromatography.”

Gas chromatography–mass spectrometry (GC–MS) and liquid chromatography–mass spectrometry (LC–MS) reveal lasting brain cholesterol loss after myelin damage.

Metrohm USA's IONIC Titrator offers cloud access and a 10-inch touchscreen.

Chromatography and spectrometry were used in tandem to reveal how ultrasound boosts chicken soup flavor compounds.

Epitope detection chromatography (EDC) links pea galactan levels to stem elongation.

Size exclusion chromatography (SEC) plus precipitation improves extracellular vesicle (EV) purity from blood plasma.

Ultrahigh-performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) shows flonicamid residues in rice pose negligible dietary risk.

High-performance liquid chromatography-tandem mass spectroscopy (HPLC–MS/MS) chromatography reveals pyrrolizidine alkaloids (PA)/pyrrolizidine alkaloid N-oxides (PANO) toxin risks in 63 tea samples.

Ultrahigh-performance liquid chromatography–tandem mass spectrometry (UHPLC–MS/MS) tracks blood metabolite changes after repetitive transcranial magnetic stimulation (rTMS)-cognitive training therapy.

Supercritical fluid extraction (SFE) and high-pressure liquid chromatography (HPLC) team up to recover olive waste antioxidants. Marina Russo of the University of Messina (Italy) discusses the details.

Ultrahigh-performance liquid chromatography-mass spectrometry (UHPLC-MS) reveals how temperature and life stage shift jellyfish venom.

Gas chromatography-mass spectrometry (GC-MS) chromatography reveals elevated polycyclic aromatic hydrocarbons (PAH) levels in wildfire smoke over Nevada.

This week, the Chromatography Online website observed National Forensic Science Week with expert interviews on how chromatography helps solve cases, plus career stories from women in analytical science and new research on detecting rat poison in cats and tracking mold toxins in gluten-free pasta.

Liquid chromatography-mass spectrometry (LC-MS) detects Maillard byproducts in hay after steaming and storage.

Liquid chromatography-high resolution mass spectrometry (LC-HRMS) finds aflatoxin and fumonisins stay stable in gluten-free pasta.

Paper spray-mass spectrometry vs. liquid chromtography-tandem mass spectrometry (LC-MS/MS): Can rapid screening rival the gold standard in ER drug testing?

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) finds high fentanyl levels do not predict toxicity in tolerant users.

Gas chromatography-ion mobility spectrometry (GC-IMS) identifies odor markers that flag early mold growth in cigar tobacco.

Koji Yamaguchi of the International University of Health and Welfare (Narita, Japan) discusses a novel derivatized liquid chromatography-tandem mass spectrometry (LC-MS/MS) method plus propofol glucuronide (PRG) marker which improves forensic propofol detection.

Gas chromatography-mass spectrometry (GC-MS) coupled with headspace solid-phase microextraction )HS-SPME) links cocoa variety to chocolate aroma and flavor profiles.

Liquid chromatography-tandem mass spectrometry (LC-MS/MS) identifies blood metabolite patterns tied to children's diets.

Kirstine Nielsen of Aarhus University (Denmark) discusses how targeted metabolomics ratios helped build a robust bloodstain time-since-deposition tool.

This new liquid chromatography-tandem mass spectrometry- quadrupole ion trap (LC-MS/MS-QTRAP) method identifies rat poisons in cat forensic cases.

LCGC International spoke to Akina Nara of Japan’s Tohoku Medical and Pharmaceutical University about a new study which links a blood compound to how long a body has been dead.

Targeted ultrahigh-performance liquid chromatography (UHPLC) links blood metabolites to sheep feed efficiency.

A method coupling gas chromatography-tandem mass spectrometry (GC-MS/MS) and multiple reaction monitoring (MRM) tracks lipid markers of decomposition in commingled remains.

This week's top stories on the Chromatography Online website spotlight LCGC International's new SFC-focused interview series charting the technique's rise alongside LC and GC, complemented by a practical GC data-reporting refresher and a study using chromatography to detect trace pesticides in tap water.

Pyrolysis-gas chromatography-mass spectrometry (Py-GC-MS) shows lung microplastics rose over 33 years, per new study.