双硫腙单色法测定水中汞其条件不难控制，且资金投入不大，适合基层单位开展该项工作。我们在长期检测工作中发现该法在加入双硫腙氯仿萃取分层后用碱洗剂洗除剩余双硫腙后，氯仿层往往出现雾状浑浊现象，以至脱脂棉不能滤去浑浊而干扰比色。本文就该问题的排除方法及实验... Dithizone monochrome determination of mercury in water is not difficult to control the conditions, and little capital investment, suitable for grassroots units to carry out the work. We found in the long-term testing of the law after the addition of dithizone chloroform extraction layered with alkali detergent to wash the remaining dithizone, the chloroform layer often appear hazy phenomenon of cloudiness, as cotton can not filter out turbidity and interfere with the colorimetric . This article on the issue of exclusion methods and experiments ...