摘要
本文用荧光熄灭法研究了１－（３－甲氧基水杨醛缩氨基）８－羟基－３，６－萘二磺酸钠（ＭＳＨＮＤ）－Ｃｒ（Ⅵ）体系的测定方法及条件。在ｐＨ＝４．００的邻苯二甲酸氢钾缓冲体系中，检测限为０．７ｎｇ／１０ｍＬ，线性范围为３．０～２０．０ｎｇ／１０ｍＬ。本法灵敏度高、选择性好，简单快速，用于测定地表水中痕量Ｃｒ（Ⅵ），结果满意。
This paper deals with a new flurometric reagent, [1-(3-methoxysalicylideneamino)-8 -hydroxy-3,6-naphthalenedisulfonic acid, disodium salt] which was synthesized by our labarotory and used to determine chromium (Ⅵ). The optium conditions have been studied. The linear range is 3.0￣ 20.0ng/ 10mL and the minimum detectable amout is 0.7ng/ 10mL. This method is applied successfully to the determination of chromium (Ⅵ) in river water.
出处
《华东师范大学学报（自然科学版）》
CSCD
1994年第4期56-59,共4页
Journal of East China Normal University(Natural Science)
关键词
铬
MSHND
荧光熄灭法
Chromium (Ⅵ) 1-(3-methoxysalicylideneamino)-8-hydroxy-3
6-naphthalenedisulfonic acid
disodium salt fluorescence quenching method
