紫外-可见光分光光度法测定废水中PVA含量  

DETERMINATION OF PVA CONTENT IN WASTE WATER BY UV-VISIBLE SPECTROPHOTOMETRIC ANALYSIS

作　　者：王立[1] 

机构地区：[1]中国石化齐鲁分公司研究院,山东淄博255400

出　　处：《齐鲁石油化工》2011年第1期65-67,共3页Qilu Petrochemical Technology

摘　　要：通过对硼酸—碘体系的显色稳定性及聚乙烯醇(PVA)溶液的紫外吸收波长进行系统地考察,建立了聚氯乙烯离心母液工业废水中PVA含量的紫外分光光度分析方法。试验结果证明,检测波长690nm,相关系数0.9998,回收率97%～104%。该方法可以直接测定废水中PVA含量,具有操作简便、选择性好、准确度高的特点。Through the systematic investigation on the color stability of boric acid-iodine system and the UV absorption wavelength of polyvinyl alcohol（PVA）solution,an UV spectrophotometric method was established to determine the PVA content in the industrial waste water of polyvinyl chloride centrifugal mother liquid.The results showed that the detection wavelength could be 690 nm,the correlation coefficient 0.9998,the recovery rate 97%～104%.With this method the PVA content could be directly measured in the waste water simply,selectively and accurately.

关 键 词：离心母液 PVA 紫外 定量分析 

分 类 号：O657.32[理学—分析化学]