Methylmercury determination in fish and shellfish by gold amalgamation - DMA

Title
Methylmercury determination in fish and shellfish by gold amalgamation - DMA
Authors
박경수서주이이지연김재훈이윤미이혜진양영미윤혜정
Keywords
methylmercury; gold amalgamation; fish and shellfish
Issue Date
2011-11
Publisher
RAFA
Abstract
Continuously, it has been worried about food safety and especially caused controversy on heavy metals, lead, cadmium, mercury and so on. In spite of steady attentions, methylmercury, organic compound of mercury, haven't standed out among others. In 2006, KFDA established standard regulation of methylmercury in fishes eventually and has tended to study actual conditions of methylmercury exposures. In the study, I suggest methylmercury analysis in fish and shellfish by Gold Amalgamation - Direct Mercury Analyzer (DMA) and perform risk assessments. To set up for methylmercury analysis in fish and shellfish is based on analyte and matrix characters, then put the steps of digestion and extraction. Digestion conditions for leaching methylmercury from matrix are classified into alkaline and acidic digestion and compared in study. After acidic condition - HCl digestion, extract with toluene, back - extract with L-cysteine solution. L-cysteine sol. leads to aqueous phase from organic phase, improves stability of methylmercury and clean-up from matrix. extracting test solutions get into DMA.
URI
http://pubs.kist.re.kr/handle/201004/41116
Appears in Collections:
KIST Publication > Conference Paper
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