摘要
利用钼（Ⅵ）在酸性介质中，对过硼酸钠氧化Ⅰ－离子成Ⅰ２的反应的催化作用，可以测定微量的钼（Ⅵ）．本文在文献的基础上，采用单纯优化法进行实验条件的选择，大大减少了操作步骤，节省了时间，测定的范围在０．５～５．０μｍｏｌ／Ｌ，且比文献上线性关系好．该法测定的回收率为９５％～１１０％之间．试样的分析结果与经典的硫氰酸盐比色法对照，二者比较接近．
The oxidation of iodide to iodine by peroxoborate is catalysed by Molybdenum (Ⅵ) in an acidic environment. This catalysis can be used to determine trace molybdenum. With the reference of a literature report a simhle optimization were employed for selective experimental conditios and a procedure was fornd which greatly eccnomized time consuming, the range of determination is 0. 5￣5. 0μmol/L. It's linear relationship is better then the literature report. The rate of recovery for this determination is between 95%￣ 110%. Analytical result of samples compared with colorimetry of theocyanate is approximately the same.
出处
《辽宁大学学报（自然科学版）》
CAS
1996年第1期27-32,共6页
Journal of Liaoning University：Natural Sciences Edition
关键词
碘离子选择电极
测定
钼
水
催化动力学
Iodide seoective electrode, Catalymetric determination, Molybdenum.
