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在陈放过程中,含汞生物液(组织匀浆、血清和尿等)内微生物的代谢产物可促使其中汞转化为易挥发的元素汞(Hg~°);足最的H_2S可抑制泥沙和生物液中汞的挥发。我们在实验中观察到如样品不立即测定,特别在夏天,其结果将逐渐降低。在用简易的直接测定方法(以下简称原子吸收法Ⅰ)时,测定值下降显著;样品经消化的方法(见本文“一、测定方法”,以下简称原子吸收法Ⅱ),由于消化能分解微生物对汞的作用产物,因而测定值的下降缓慢。我们发现用原子吸收法Ⅰ测定时,如在加碱性氯化
Metabolites of microorganisms in mercury-containing biological fluids (tissue homogenates, serum and urine) can promote the conversion of mercury to elemental mercury (Hg ~ Mercury in biological fluids volatilizes. We observed in our experiments that if the sample is not measured immediately, the results will gradually decrease, especially in the summer. In the case of a simple direct measurement method (hereinafter abbreviated as atomic absorption method I), the measured value decreased significantly; the sample was digested (see “a measurement method”, hereinafter referred to as “atomic absorption method” for short) Mercury on the product, so the measured value decreased slowly. We found that when measured by atomic absorption method Ⅰ, such as adding alkaline chloride