摘要
本文提出了一种快速测定水中微量汞的新方法。采用KBrO_3-HCl-HNO_3体系在室温下破坏水样中的有机汞,产生的无机汞用自制的KBH_4片剂还原,用测汞仪测定。此法具有简便、快速、精密度和灵敏度较好等优点,适合大批量水样的分析。
A method has been proposed for determination of trace mercury in water. KBrO_3-HCl-HNO_3is used to decompose organic mercury at room temperature, while KBH_4 is used to reduce theinorganic mercury(Ⅱ) and then elemental mercury is determined by AAS. This method is simpleare fast. The precision and sensitivity of the method have also been evaluated.
关键词
水
汞
测汞仪
mercury
potassium boronhydride
