水蒸気蒸留法を用いた魚介類中のメチル水銀分別定量について

概要

論文の詳細を見る
In the preceding paper, it was shown that such lower alkyl mercurials as methyl, ethyl, and butyl mercury can be distilled quantitatively by steam distillation. In this connection, the steam distillation procedure has been applied for the determination of methyl mercury in fish and shells by gas-liquid chromatography. The procedure herein adapted involves steam distilling the volatile alkyl mercurials as mercuric chlorides. The mercuric chlorides in the distillate are extracted with benzene, and the benzene phase is partitioned with a cysteine acetate solution. Methyl mercuric chloride in the aqueous phase is determined by electron capture gas-lipuid chromatography using α-chloronaphthalene as an internal standard. The recovery of methyl mercuric chloride added to a variety of samples was found to be reproducible. The coefficient of variation for repeated determinations on a flesh sample of flounder was 2.3%.
公益社団法人日本水産学会の論文