✦ LIBER ✦

Detection of diarrhetic shellfish poisoning toxins from tropical shellfish using liquid chromatography-selected reaction monitoring mass spectrometry

✍ Scribed by Michael J. Holmes; Serena Lay Ming Teo; Hong Woo Khoo

Book ID: 101389870
Publisher: John Wiley and Sons
Year: 1999
Tongue: English
Weight: 53 KB
Volume: 7
Category: Article
ISSN: 1056-9014
DOI: 10.1002/1522-7189(199911/12)7:6<361::aid-nt79>3.0.co;2-1

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✦ Synopsis

A negative mode liquid chromatography-selected reaction monitoring mass spectrometry (LC-SRM MS) method was developed to detect low concentrations of the diarrhetic shell®sh poisoning (DSP) toxins okadaic acid and dinophysistoxin-1 (DTX-1). Detection relies upon monitoring the transition of negative precursor ions [M À H] À to a common fragment ion of m/z 255. Our limit of detection for okadaic acid with this method is 0.5 pg on column. LC-SRM MS has allowed us to detect persistent, low concentrations of DSP toxins from Singapore shell®sh.

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