摘要
研究了酸性高锰酸盐指数测定中Cl-、NO、Cr(Ⅵ)等的干扰规律,并建立了干扰方程。提出了用计算法消除上述干扰的实验方法。该方法应用于环境监测,可提高监测结果的准确度。且简便省时,尤其适用于高含盐水(如海水)中酸性高锰酸盐指数的测定。
Interference equations of Cl ̄-、NO and Cr(Ⅵ) in the determination of acid permanganate method (COD_(Mn))are established. An experimental method by which the above-mentioned interference substances can be eliminated is proposed. If this method is applied to environmental test, the accuracy of testing results will be improved. The method is simple, time-saving and very suitable for the determination of acid COD_(Mn) in heavy-salt-bearing water.
出处
《石油大学学报(自然科学版)》
CSCD
1996年第6期77-79,共3页
Journal of the University of Petroleum,China(Edition of Natural Science)
关键词
高含盐水
高锰酸盐
环境监测
Halite water
Permanganate
Interference
Experiment