摘要
本文研究了ＨＣｌ－ＫＣｌ缓冲体系中钒（Ｖ）与５－Ｂｒ－ＰＡＤＡＰ形成配合物的条件及配合物的带电性质。提出一个灵敏、简便、快速测定钒的分光光度法。配合物的表观摩尔吸光系数为３．８×１０＾４，最大吸收波长为５８８ｎｍ，钒（Ｖ）与５－Ｂｒ－ＰＡＤＡＰ的配合比为１：１。含钒量在０－２０μｇ／２５ｍＬ范围内符合比尔定律。分析季地下水中钒，结果满意。
The forming conditions of V(Ⅴ) with 5-Br-PADAP complex in HCl-KCl buffer solution were investigated. The complex ratio of V(Ⅴ) to 5-Br-PADAP is 1:1, Complex apparent molar absorptivity reached 2. 3×1 04L·mol-1· cm-1 at 588nm. Beer's law is obeyed for V(Ⅴ) in the range of 0-20μg/mL. A method of sensitivity, simplicity and rapidity was proposed, which has been successfully applied to the determination of vanadium in groundwater.
出处
《光谱实验室》
CAS
CSCD
1996年第5期51-53,共3页
Chinese Journal of Spectroscopy Laboratory
