摘要
采用离子色谱法直接测定聚偏二氯乙烯中的氯离子含量。样品用80℃水浴提取30min后，经IonPacAG11保护柱和IonPacAS11分离柱分离，以20mmol／L氢氧化钾溶液为淋洗液，采用抑制电导器检测。氯离子线性范围为0．05—1mg／L，相关系数（r2）大于0．999。以信噪比（S／N）为3确定检出限，氯离子的检出限为0．01mg／L，回收率为84．0％～101．0％，
An ion chromatography method was presented to determine chloride ion content in PVDC. Samples were extracted with water at 80℃ for 30 min, Ion Pac AGll （protective column） and Ion Pac ASll （separation column） were used for separation and 20 mmol/L KOH solution was used as eluant. Inhibitory conductivity detection was adopted in the determination. The chloride ion linear range was 0.05 - 1 mg/L, and the correlation coefficient （r2） was more than 0. 999. While the signal-to-noise ratio （S/N） was 3, detection limit of chloride ion was 0.01 mg/L, and the recovery rate was from 84.0% to 101.0%.
作者
苏广坤
孙卓军
田敏
宋晓云
高建国
SU Guangkun SUN Zhuojun TIAN Min SONG Xiaoyun GAO Jtanguo(Inspection and Quarantine Center of Shandong Entry-Exit Inspection and Quarantine Bureau, Qingdao 266002, China Qingdao Double Peach Specialty Chemicals Co. , Ltd. , Qingdao 266031 College of Chemical and Environmental Engineering, Shandong University of Science and Technology, Qingdao 266590, China Qingdao Entry-Exit Inspection and Quarantine Bureau, Qingdao 266001, China)
出处
《聚氯乙烯》
CAS
2016年第10期32-34,共3页
Polyvinyl Chloride
基金
科技部质检行业公益项目"食品接触材料生物安全性
失效分析及使用寿命评价的研究"(201410083)~~
关键词
聚偏二氯乙烯
离子色谱法
氯离子含量
ployvinylidene chloride
ion chromatography
chloride ion content
