Munns R K, Holland D C
J Assoc Off Anal Chem. 1977 Jul;60(4):833-7.
A collaborative study of the determination of mercury in fish has been completed in which wet oxidation of fish tissue in nitric acid, using vanadium as a catalyst, is compared with the AOAC official final action digestion technique, 25.103-25.105, involving a nitric-perchloric acid mixture. The study used tuna fish samples of known mercury content and included spike recovery studies in which methyl mercury solutions of known composition were provided to each laboratory. The study was designed to provide recovery information that bracketed the regulatory level of mercury in fish. The results indicate that the proposed digestion method is at least as precise and accurate as the AOAC method. The proposed method is also more rapid and less hazardous. It has been adopted as official first action.
一项关于鱼类中汞含量测定的合作研究已经完成。该研究将以钒为催化剂，在硝酸中对鱼组织进行湿式氧化的方法，与美国官方分析化学家协会（AOAC）的官方最终法定消化技术（25.103 - 25.105）进行了比较，后者涉及硝酸 - 高氯酸混合物。该研究使用了已知汞含量的金枪鱼样本，并包括加标回收率研究，即向每个实验室提供已知成分的甲基汞溶液。该研究旨在提供涵盖鱼类中汞监管水平的回收率信息。结果表明，所提出的消化方法至少与AOAC方法一样精确和准确。所提出的方法还更快且危险性更低。它已被采纳为官方首次行动方法。
