本文选用不同类型稳定剂,分别于酸和碱性介质中用冷原子吸收法测定,以五种水样对照找出两种比较好的新型稳定剂。其稳定时间、贮存效果和适用性等方面除与硝酸+重铬酸钾体系所具优点相同外,还避免了对人体、环境的第二次污染和对人体的危害,并可于同一贮存液中分别测定汞和铬而无需另取水样,是目前微量汞较理想的贮存稳定剂。 This article selected different types of stabilizers, respectively, in acid and alkaline medium by cold atomic absorption spectrophotometry, five water samples were found to control two relatively good new stabilizer. Its stability time, storage effect and applicability and so on except with nitric acid + potassium dichromate system has the same advantages, but also to avoid the human body, the environment of the second pollution and harm to the human body, and in the same storage solution In the determination of mercury and chromium, respectively, without the need for another water sample, is the ideal storage stabilizer trace mercury.