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环境中总汞的分析,JIS法规定为在硫酸酸性条件下,以锡(Ⅱ)为还原剂的冷AAS法(以下简称法定法),梅崎等报道了碘化物等共存离子对该法测汞有干扰,作者就此进行了研究,建立了环境样品中汞测定的改良法。仪器与试剂原子吸收分光光度计(密闭循环式及开放送气式),汞空心阴极灯,石英皿。无机汞标准溶液:使用AAS用1000 ppm无机汞标准溶液。有机汞标准溶液:使用优级纯氯化甲基汞(MMC)、氯化乙基汞(EMC)及硝基苯汞
The total mercury in the environment is analyzed by the JIS Law as the cold AAS method using tin (II) as a reducing agent under the acidic conditions of sulfuric acid (hereinafter referred to as the statutory method) There is interference, the author conducted a study on the establishment of an improved method for determination of mercury in environmental samples. Instruments and Reagents Atomic Absorption Spectrophotometer (closed loop and open feed), mercury hollow cathode lamp, quartz dish. Inorganic Mercury Standard Solution: Use 1000 ppm inorganic mercury standard solution for AAS. Organic Mercury Standard Solution: The use of superior grade pure methylmercury chloride (MMC), ethyl mercury chloride (EMC) and nitrobenzene