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Functional groups strongly affect amino acid LC-MS derivatization
Systematic evaluation of derivatization agents for LC-MS amino acid analysis identifies isoquinoline-6-carboxylic acid NHS ester as optimal, achieving nanomolar sensitivity and long-term stability.
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Home-produced eggs had the highest PFAS levels in Croatia
Study measuring per- and polyfluoroalkyl substances in Croatian eggs across production systems, identifying home-produced eggs as significantly more contaminated and young children as most vulnerable.
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Validated HPLC method estimates three tea phytoconstituents
RP-HPLC method development and validation for simultaneous determination of caffeine, eugenol, and zingerone in Ashwagandha green tea using Design of Experiments and ICH guidelines.
