摘要
研究了八-羟基喹啉与铊的反应,在λ=223nm处具有最大的紫外吸收.TI(Ⅲ)质量浓度在0~12μg.(25mL)-1范围内符合比尔定律;反应具有较好的选择性,除Fe3+、Cu2+、Ag+外大多数离子不干扰测定,采用F-作掩蔽剂能很好消除Fe3+、Cu2+、Ag+的干扰,因此可直接用于一般水样中铊的测定.
This article researched the reaction between Tl(Ⅲ) and 8-hydroquinoline, the maximun absorption wavelength at =223. The concentration of Tl(Ⅲ) accords with Bill's Law in the area of 012 g(25 mL)^(-1). This reaction has good selectivity. Most of inos do not affect the determination of Thallium(Ⅲ), except for Fe^(3+) Cu^(2+) Ag^+. Using F^- as conceal can clear up the influence of Fe^(3+) Cu^(2+) Ag^+. So this means can be used as the determination of Tl(Ⅲ) in common sample of water with satisfying results.
出处
《广州大学学报（自然科学版）》
CAS
2005年第3期234-236,共3页
Journal of Guangzhou University:Natural Science Edition
基金
广东省自然科学重点基金(36210)
省科技计划项目(2002C31607)
广州市教育基金项目(2001001).
关键词
八-羟基喹啉
紫外分光光度法
铊
<Keyword>8-hydroquinoline
Ultraviolet Spectrophotometry
Thallium(Ⅲ)
