Food Hygiene and Safety Science/Shokuhin Eiseigaku Zasshi 2009-12-01

[Analysis of 2,4-dibromophenol and 2,6-dibromophenol in phenolic-smelling flatfish].

Yasuo Tanaka, Kyoko Takahashi, Shiro Hosoi, Toshio Hidaka, Hiroyuki Nakazawa

Index: Shokuhin Eiseigaku Zasshi 50(6) , 292-6, (2009)

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Abstract

A simple analytical method for dibromophenols (DBPs) in flatfiish was developed. 2,4-DBP and 2,6-DBP were extracted from a sample with acetone and n-hexane, cleaned up by treatment with conc. sulfuric acid and concentrated under a stream of nitrogen gas. The resulting extract was subjected to GC/MS. The recoveries of 2,4-DBP and 2,6-DBP were 89.4-96.5% and 81.4-86.2%, respectively, indicating that this method is useful for analysis of 2,4-DBP and 2,6-DBP. In the phenolic-smelling flatfish, 2,6-DBP was detected at the levels of 0.10 microg/g and 0.01 microg/g in skin and muscle, respectively, and 2,4-DBP was detected at the level of 0.02 microg/g in skin.