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Open AccessArticle

Development of Ultra-Performance Liquid Chromatography with Post-Column Fluorescent Derivatization for the Rapid Detection of Saxitoxin Analogues and Analysis of Bivalve Monitoring Samples

1
National Research Institute of Fisheries Science, Fukuura 2-12-4, Kanazawa, Yokohama, Kanagawa 236-8648, Japan
2
Hakodate Fisheries Research Institute, Hokkaido Research Organization, Benten-cho 20-5, Hakodate, Hokkaido 040-0051, Japan
3
Tohoku National Fisheries Research Institute, Shinhama-cho 3-27-5, Shiogama, Miyagi 985-0001, Japan
*
Author to whom correspondence should be addressed.
Toxins 2019, 11(10), 573; https://doi.org/10.3390/toxins11100573
Received: 31 July 2019 / Revised: 24 September 2019 / Accepted: 27 September 2019 / Published: 1 October 2019
(This article belongs to the Special Issue Marine Toxins Detection)
Saxitoxin (STX) and its analogues produced by toxic dinoflagellates accumulate in bivalves, and routine monitoring of bivalves is important to prevent cases of human poisoning. In this study, we describe a rapid detection method for the analysis of STXs using ultra-performance liquid chromatography with post-column fluorescent detection and to investigate water depths and sampling points optimal for shellfish toxin monitoring. Cultured scallops (Mizuhopecten yessoensis) and mussels (Mytilus galloprovincialis) collected from various water depths and sampling points were used in this study. Irrespective of bivalve species, toxin concentrations in bivalves were lower at deeper water depths. The toxin concentrations of bivalves did not differ greatly when bivalves were collected from the same bay. Although the levels of contamination of bivalves with STXs can depend on various environmental and geographical factors, our findings are useful for formulating a sampling protocol for the prevention of harvesting contaminated shellfish. View Full-Text
Keywords: saxitoxin analogues; UPLC; shellfish toxicity; UPLC/OX/FD; post-column detection; saxitoxin saxitoxin analogues; UPLC; shellfish toxicity; UPLC/OX/FD; post-column detection; saxitoxin
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Watanabe, R.; Kanamori, M.; Yoshida, H.; Okumura, Y.; Uchida, H.; Matsushima, R.; Oikawa, H.; Suzuki, T. Development of Ultra-Performance Liquid Chromatography with Post-Column Fluorescent Derivatization for the Rapid Detection of Saxitoxin Analogues and Analysis of Bivalve Monitoring Samples. Toxins 2019, 11, 573.

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