摘要
本文报道了Ａｇ—ｐｈｅｎ─ＴＰＰＳ４光度法间接测定硫离子的新方法。疏离子的测定范围为０～０．１４μｇ／ｍＬ，摩尔吸光系数ε４３８＝５．２×１０５Ｌ·ｍｏｌ－ｌ·ｃｍ－１。用吹气法分离环境样品中的硫离子，以三乙醇胺的氢氧化钠溶液作吸收液，测定结果与亚甲基蓝标准法一致。
A method of indirect spectrophotometric determination of trace sulfide ion with silver (Ⅰ)-1, 10-phenanthrolines-tetra-(4-sulfophenyl) porphyrin (Ag-phen-TPPS4) was reported in this paper, and the experimental conditions have been optimized. the effects of more than 20 kinds of interference ions are examined. Beer′s law is obeyed in the range of 0～0.14μg/mL for sulfide ion, and the apparent molar absorptivity is 5.2×105L·mol·cm-l. the method can be used for the determination of sulfide ion in waste-water and the results are well agreed with that obtained by standard method.
出处
《分析科学学报》
CAS
CSCD
1995年第1期61-64,共4页
Journal of Analytical Science
基金
浙江省教委基金
关键词
分光光度法
硫离子
卟啉
Spectrophotometry
Sulfide ion
Silver
TPPS4
