National Taiwan Ocean University Institutional Repository:Item 987654321/27197
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题名: Determination of tetrodotoxin in human urine and blood using C18 cartridge column, ultrafiltration and LC–MS
作者: Y.H. Tsai;D.F. Hwang;C.A. Cheng;C.C. Hwang;J.F. Deng
贡献者: NTOU:Department of Food Science
國立臺灣海洋大學:食品科學系
关键词: Tetrodotoxin;Food poisoning;LC–MS
日期: 2006-02-17
上传时间: 2011-10-21T02:23:55Z
出版者: Journal of Chromatography B
摘要: Abstract:Six fishermen were victims (including one death) of food poisoning from unknown fish on their boat in central Taiwan Strait, in April 2001. The symptoms were like those of tetrodotoxin (TTX) poisoning. As there was no remaining fish, a new protocol was developed to determine TTX in the urine and blood of the victims. The urine and blood samples were cleansed using a C18 Sep-Pak cartridge column, and the toxin was extracted by methanol. The eluate was filtered through a microcentrifuge filter. The filtrate was freeze-dried, dissolved in distilled water, and determined by LC–MS. The recovery was more than 88.9%. The detection limit was 15.6 nM. A linear relationship between response and concentration was obtained between 93.75 and 9375 nM of TTX. It was shown that the urine and blood of the victims contained TTX. The range of TTX was 4.5–40.6 nM in blood and 47–344 nM in urine. Judging from the symptoms of the victims and the experimental data, the causative agent of the food poisoning was identified as TTX.
關聯: 832(1), pp.75–80
URI: http://ntour.ntou.edu.tw/handle/987654321/27197
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