硼酸-碘分光光度法测量混合印染废水中聚乙烯醇的研究  

Standardization Study on Determination of Polyvinyl Alcohol in Dyeing Wastewater by Boric Acid-Iodine Spectrophotometric Method

作　　者：简磊[1] 王维[1] 竺美[1] 田庆华[1] 

机构地区：[1]四川省环境保护科学研究院,四川成都610041

出　　处：《中国环境监测》2009年第3期51-55,共5页Environmental Monitoring in China

摘　　要：采用硼酸-碘分光光度法测量聚乙烯醇的浓度,对显色剂用量、最大吸收波长、显色时间、淀粉干扰、样品存放时间等进行研究。结果表明,最佳工作波长为645nm,淀粉的干扰可以通过加酸水解消除。该法标准曲线线性良好,相关系数达0.99915。The determination of Polyvinyl alcohol in Dyeing Wastewater by Bode acid-Iodine Speetrophotometde method was described in this paper. The dosage of color developing reagent, maximum absorption wavelength, time for color reaction, amylum interference and storage time of samples were studied. It was shown that the most suitable wavelength is 645nm and amylum interference can be eliminated by acid and hydrolyzation. The calibration curve of this method shows good linearity, coefficient is 0.99915.

关 键 词：聚乙烯醇 分光光度法 硼酸 碘 

分 类 号：X832[环境科学与工程—环境工程]