电感耦合等离子体发射光谱(ICP-OES)法测定快递包装中5种重金属元素  

Determination of the Contents of 5 Heavy Metal Elements in Express Packages by ICP-OES

作　　者：温士强 万峰 孙衎 禄春强[1] WEN Shiqiang;WAN Feng;SUN Kan;LU Chunqiang(Shanghai Institute of Quality Inspection and Technical Research,Shanghai 201114,China)

机构地区：[1]上海市质量监督检验技术研究院,上海201114

出　　处：《中国无机分析化学》2021年第2期1-3,共3页Chinese Journal of Inorganic Analytical Chemistry

基　　金：上海市科学技术委员会研发公共服务平台建设项目(14DZ2293000)。

摘　　要：快递包装用硝酸-过氧化氢在微波辅助消解后,采用电感耦合等离子体发射光谱(ICP-OES)法同时测定其中的铅、镉、砷、锌、铜5种重金属元素含量。实验表明,5种元素的仪器检出限在0.2~1.0 mg/kg,6次重复性相对标准偏差(RSD)在0.20%~1.4%,加标回收率在82.0%~94.7%。10批次快递包装中有铅、锌和铜元素检出。方法检出限低、快速、准确,适用于快递包装中5种重金属元素的测定。The contents of lead,cadmium,arsenic,zinc and copper in the package were determined by ICP-OES.The instrumental detection limit of the five elements were 0.2—1.0 mg/kg,the relative standard deviation RSDs were 0.20%—1.4%,and the standard recovery range was 82.0%—94.7%.Lead,zinc and copper have been detected in the 10 batches of samples.The method is fast,accurate with low detection limits.It is suitable for determination of 5 heavy metal ions in express packages.

关 键 词：电感耦合等离子体发射光谱法 快递包装 重金属元素 

分 类 号：O657.31[理学—分析化学] TH744.11[理学—化学]