John Chasse

Articles by John Chasse

This week’s Chromatography Online coverage highlights chromatography's expanding reach—from greener tetracycline and pesticide-residue methods to LC-MS/MS and GC-MS breakthroughs in detecting pregnancy loss markers, bladder cancer, tobacco exposure, and cardiac risk.

A multinational research team developed a green, miniaturized CPME-HPLC-DAD method to simultaneously extract and detect four tetracyclines in human urine, offering a simpler, cheaper alternative to LC-MS/MS with improved sensitivity. LCGC International spoke to Fedra Vasileiou, Victoria Samanidou, and Abuzar Kabir, three of the authors of the paper that resulted from this work.

Size-exclusion high-performance liquid chromatography with fluorescence detection (HPLC-SEC-FLD) and attenuated total reflectance Fourier-transform infrared spectroscopy (ATR-FTIR) trace carbon nanodot glow to beer roasting process.

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