摘要
建立了紫外可见分光光度法检测退浆废水中聚乙烯醇(PVA)含量的方法。以硼酸为介质,碘化钾—碘溶液为显色剂,检测波长为680 nm,测定退浆废水中PVA含量的线性方程为Y=0.018 8X+0.003 2,相关系数R2=0.999 3,平均加标回收率为97.6%;方法精密度(RSD=1.5%)、重现性(RSD=1.8%)均较好。该方法操作简单、准确度高、测定快速,适用于测定退浆废水中PVA的含量。
The content of PVA in desizing wastewater was detected by UV - Vis spectroscopy. In this method, boric acid was selected as the medium, and KI - 12 as the color - developing agent under 680 nm detection wavelength. The results showed that the regression equation of PVA concentrations is Y=0. 018 8X ＋ 0. 003 2, and the correlation coefficient （R2） is 0.999 3. The average recovery rate is 97.6%. The precision （ RSD = 1.5% ） and reproducibility （ RSD = 1.8% ） of the method are both well. This method has some advantages such as simple operation, high accuracy, rapid determination, it is applicable for the detection of desizing wastewater.
出处
《干旱环境监测》
2017年第1期1-4,24,共5页
Arid Environmental Monitoring
基金
博天环境集团股份有限公司自主研发项目(YA-2016-003)
关键词
退浆废水
紫外可见分光光度法
聚乙烯醇
检测
desizing wastewater
UV - Vis spectroscopy
polyvinyl alcohol （PVA）
detect
