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MEPS 230:29-34 (2002)
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Abstract
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A fast fluorimetric assay (FFA) for the detection of saxitoxin in natural phytoplankton samples
G. Gerdts1,*, C. Hummert2, G. Donner3, B. Luckas2, C. Schütt1
1Marine Chemistry and Natural Products, Biologische Anstalt Helgoland at the Alfred Wegener Institute, Kurpromenade, 27483 Helgoland, Germany
2Deptartment of Biology and Pharamacy, Institute of Food Chemistry, Friedrich-Schiller-University Jena, Dornburger Straße 24-29, 07743 Jena, Germany
3Taxonomische Arbeitsgruppe, Forschungsinstitut Senckenberg, Wattenmeerstation Sylt, Alfred-Wegener-Institut, Hafenstraße 43, 25992 List/Sylt, Germany
*E-mail: ggerdts@awi-bremerhaven.de
ABSTRACT: A fast fluorimetric assay (FFA) for the detection of saxitoxins in plankton samples was compared with the analysis by high performance liquid chromatography (HPLC). The correlation between the results of the assay and those of the HPLC is
significant for most of the carbamoyl saxitoxins. During research cruises to the Orkney Islands and the Firth of Forth (Scotland) in 1997 and 1998, samples of toxic Alexandrium spp. blooms were analyzed successfully by FFA and HPLC. Because the
toxin pattern of toxic Alexandrium spp. mostly consists of highly fluorescent saxitoxins (like STX and GTX3), the assay can be applied for monitoring toxic Alexandrium spp. blooms and is suggested as a tool for future prewarning systems of
paralytic shellfish poisoning (PSP) events.
KEY WORDS: Saxitoxin · Paralytic shellfish poisoning · PSP · Fast fluorimetric assay
Full text in pdf format
Published in MEPS Vol.
230
(2002) on April 5
Print ISSN: 0171-8630; Online ISSN: 1616-1599.
Copyright © Inter-Research, Oldendorf/Luhe, 2002
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