摘要
本文讨论用流动注射分析法测定次氯酸钠中有效氯的含量。实验表明,流动注射分析法对于此项测定不仅实用,而且操作非常简便。特别在待测样品批量较多时,数十秒钟内就能获得准确而且具有重现性的测定结果。在工厂实样的分析中,FIA 法与经典碘量法测定结果相比,其相对误差小于2.5%。应用本法10次重复测定结果的标准偏差为3.4×10^(-3),变动系数为5.3×10^(-3)。
This paper deals with the application of Flow Injection Analysis to the measurement of
available chlorine of NaClO.The experiment shows that for this determination FIA method
is not only practicable but also easy to operate,particularly when the batch samples to be
measured are comparatively great in number.Reproducible and accurate results can be ob-
tained within tens of seconds.For the samples from production lone,FIA method gives the re-
sult with a relative error less than 2.5% as compared with iodometry.with this method,the
standard deviation in 10 repeated tests is 3.4×10^(-3),and the variation coefficient is 5.3×10^(-3).
出处
《中国纺织大学学报》
CSCD
1992年第1期105-108,共4页
Journal of China Textile University
关键词
次氯酸钠
测定
流动注射
有效氯量
sodium hypochlorite
rapid analysis
determination
flow injection analysis
available chlorine
