Falter R, Schöler H F
Institut für Sedimentforschung, Heidelberg, Germany.
Chemosphere. 1994 Sep;29(6):1333-8. doi: 10.1016/0045-6535(94)90263-1.
Methyl-, ethyl- and phenyl mercury, total mercury and fat content were determined in fish fillet of the five different fish species: eel, perch, roach, chub and barbel. The organo mercury compounds were extracted according to a modified Westöö method and determined by using HPLC-cold vapour atomic absorption spectrometrie. Total mercury was determined according to EPA/AOAC. Total mercury in fish tissue varied between 16 and 812 micrograms/kg, methyl mercury between 10 and 770 micrograms/kg. It was found that at least 83% of total mercury is present as methyl mercury. Only a barbel exceeded the German maximum acceptable residue limit (500 micrograms/kg) with 812 micrograms/kg total mercury.
测定了五种不同鱼类(鳗鱼、鲈鱼、拟鲤、雅罗鱼和鲃鱼)鱼片的甲基汞、乙基汞和苯基汞、总汞及脂肪含量。有机汞化合物采用改良的韦斯特厄方法提取,并通过高效液相色谱 - 冷蒸气原子吸收光谱法测定。总汞根据美国环保署/美国官方分析化学师协会的方法测定。鱼组织中的总汞含量在16至812微克/千克之间,甲基汞含量在10至770微克/千克之间。结果发现,总汞中至少83%以甲基汞的形式存在。只有一条鲃鱼的总汞含量为812微克/千克,超过了德国的最大可接受残留限量(500微克/千克)。