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作者用含有Cu~(++)的1 N HCl溶液使鱼样中的汞(Cu~(++)与在组织中结合的Hg~(++)交换)完全释放出来。反应机制似乎基于螯合物的稳定程度。此法快速而简便,准确性与其他方法作了对比。称取去皮鱼样20g,加少量水打成匀浆,再用100ml水将匀浆转移至含有1g CuCl_2、20ml浓HCI的容器中,加水至200ml,振摇混匀。取部分匀浆干50ml离心管内离心后取上清液1～5ml,加2ml 10%SnCl_2和100ml 1 N NaOH,将全部汞还原成元素汞,气化后进入
The authors completely released mercury (Cu ~ (++) in the fish sample and Hg ~ (++) bound in the tissue with 1 N HCl solution containing Cu ~ (++)). The reaction mechanism seems to be based on the degree of chelate stabilization. This method is fast and easy, the accuracy compared with other methods. Weigh peeled fish like 20g, add a small amount of water labeled homogenization, and then homogenate 100ml water will be transferred to contain 1g CuCl2, 20ml thick HCI container, add water to 200ml, shake and mix. Take part of the homogenate 50ml centrifuge tube centrifuged after the supernatant 1 ~ 5ml, add 2ml 10% SnCl2 and 100ml 1N NaOH, all mercury reduced to elemental mercury, gasification into