Liquid chromatography–tandem mass spectrometry (LC–MS/MS) measures galactose-1-phosphate in dried blood spots to monitor galactosemia.
News|Articles|August 7, 2026
Fast, Reliable Honey Authenticity Testing for 3-Methoxytyramine Analysis on the QSight® 500 LC-MS/MS System
Author(s)PerkinElmer, Inc.
This application note describes a fast and robust LC‑MS/MS method for honey authenticity testing by targeted quantification of 3‑methoxytyramine, a specific marker for beet‑sugar feeding. Using the QSight® 500 LC‑MS/MS with EDIT‑ESI and a simplified Blend‑and‑Inject workflow, the method eliminates SPE and isotopically labeled internal standards while delivering high sensitivity, excellent reproducibility, and high throughput for routine commercial and regulatory honey testing.
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