浊度计快速测定苯乙烯单体中聚合物的研究  

Research of the Method for Determination of Polymer Content of Styrene Monomer by Turbidimeter

作　　者：何松涛[1] 孙建刚[1] 查文明[1] 

机构地区：[1]张家港出入境检验检疫局综合技术中心,江苏省张家港市港区镇215633

出　　处：《光谱实验室》2003年第6期868-870,共3页Chinese Journal of Spectroscopy Laboratory

摘　　要：建立了用浊度计快速测定苯乙烯单体中聚合物的方法 ,样品用甲醇溶解后 ,以样品 /正己烷溶液为空白 ,通过测定其浊度 ,确定聚合物的含量。消除了 GB/ T12 6 88.3- 1990用光度法测定聚合物过程中空白基体的影响。在 0— 5 0 mg/ kg范围内线性关系良好 ,相关系数 r=0 .9991,检出限达到 0 .0 1mg/ kg,方法简便、快速 ,完全能达到实际检测要求。A test method for fast determination of polymer in styrene monomer using turbidimeter was established in methanol solution with hexane solution as test blank, which eliminated the blank matrix interference in the photometric method of GB/T 12688.3-1990.This method has a very good linearity within range of 0-50mg/kg,with correlation coefficient of 0.9991 and detection limit of 0.01mg/kg.It is a simple and fast method, which satisfies the requirement of practical application.

关 键 词：浊度计 苯乙烯单体 聚合物 光度法 空白基体 校准曲线 检出限 

分 类 号：O625.12[理学—有机化学] O657.39[理学—化学]