新三氮烯试剂1-(4-硝基苯基)-3-(2-苯骈咪唑)-三氮烯测定微量汞的探讨  

Spectrophotometric Determination of Hg (Ⅱ) with Triazenes in the Presence of Triton X-100

作　　者：龙跃[1] 曹诗倜 

机构地区：[1]河南医科大学有机教研室,郑州450052 [2]湖南长沙矿冶研究院分析室

出　　处：《分析试验室》1993年第3期46-47,共2页Chinese Journal of Analysis Laboratory

摘　　要：在曲拉通X-100存在下,汞(Ⅱ)与三氮烯、表面活性剂形成了水溶性络合物,据此提出了测定汞的高选择性的分光光度法。摩尔吸光系数为2.6×10~5L·mol^(-1)·cm^(-1),最大吸收波长在520nm,汞量在0～12.0μg/25mL范围内符合比尔定律,研究了共存离子的影响,并测定了水样中的含汞量。A new highly selective method for the determination of Hg(Ⅱ) in the presence of triton X-100 has been developed. The absorption maximum of the aqueous soluble complex is at 520nm,and its apparent molar absorptivity is 2.6×10~5L·mol^(-1)ˉcm^(-1). Beer's law is obeyed for 0 to 12. 0μg/25mL Hg. The interference of diverse ions has been studied. This method has been applied to the determination of Hg in river waters.

关 键 词：新三氮烯试剂 汞 表面活性剂 

分 类 号：O614.243[理学—无机化学]