一次性纸杯铅的浸出量研究  

Study on Leaching Amount of Disposable Paper Cups of Lead

作　　者：赵孝梨[1,2] 朱四喜[1,2] 王娅[2] 

机构地区：[1]贵州民族大学喀斯特湿地生态研究中心,贵州贵阳550025 [2]贵州民族大学化学与环境科学学院,贵州贵阳550025

出　　处：《广东化工》2015年第14期20-21,共2页Guangdong Chemical Industry

基　　金：2014年贵州民族大学教师科研基金项目"贵州草海湿地水质时空变化研究";2012年教育部新世纪人才支持计划项目(NCET-12-0659)

摘　　要：为了解一次性纸杯中铅的溶出量,采用醋酸溶液和水浸泡提取,石墨炉原子吸收法测定一次性纸杯中溶出铅的含量。通过改变温度和醋酸浓度对纸杯中的铅溶出量得出浸出铅的最佳浓度和温度。结果表明：在50℃下及4%醋酸浸泡浓度下铅的浸出量最大。在20-100μg·m L-1浓度范围内铅呈现良好的线性关系,回收率在83.3%-105%。该方法具有操作简单、灵敏度高等特点,能适用于一次性纸杯中铅的浸出量检测。In order to understand the amount of dissolved Lead inusing disposable cups, soaked in acetic acid solution extraction, stripping voltammetric determination of Lead content of disposable cups in the graphite furnace atomicabsorption spectrometry. By changing the temperature and concentration of acetic acid on the cups of the amount of dissolved Lead Leaching Lead the best concentration and temperature. The results showed that： in the 40 ℃ and 4 % acetic acid soaking concentration Leaching amount of Pb maximum. In the 20.0-100 μg·m L-1 concentration range of Pb showed a good Linear relationship, The recovery rate was 86 %-102 %. The method is simple and reliable, the Leaching amount detection can be applied to the measurement of Pb in disposable cups.

关 键 词：铅 一次性纸杯 石墨炉原子吸收法 浸出量 

分 类 号：TQ174.45[化学工程—陶瓷工业]