摘要
以市场上购买的20种一次性纸质食品接触制品为检测对象,采用微波消解-电感耦合等离子体质谱法(ICP-MS)测定了其中六种元素(重金属铅、镉、汞和铬,以及类金属锑和砷)的含量。结果显示,目标元素的相对标准偏差(RSD)均小于5%(n=6),六种元素的回收率在86.6%~107.3%之间。小麦标准物质GBW 10011 (GSB-2)检测结果与标准值基本一致。结果表明,该方法快速灵敏、操作简单、结果准确可靠,适用于性纸质食品接触制品中铅、镉、砷、汞、锑、铬的同时测定。
Microwave digestion-inductively coupled plasma mass spectrometry(ICP-MS) determined six elements in 20 disposable paper-based food contact products, which are bought from market, is used. The elements measured involved the heavy metals lead, cadmium, mercury, chromium, and the metalloids of antimony and arsenic. The relative standard deviation(RSD) values of the target elements were all less than 5%(n=6). The calculated recoveries were 86.6%-107.3% for all six elements. The detection results of the wheat standard substance GBW 10011(GSB-2) were basically in accord with the standard values. The experiment results indicate that this method was suitable for the simultaneous determination of lead, cadmium, arsenic, mercury, antimony and chromium in paper-based food contact products.
作者
李杰
冷安芹
周定友
徐先顺
袁小雪
LI Jie;LENG Anqin;ZHOU Dingyou;XU Xianshun;YUAN Xiaoxue(Physical and Chemical Laboratory,Sichuan Center for Disease Control and Prevention,Chengdu 610041)
出处
《食品工业》
CAS
北大核心
2020年第2期309-313,共5页
The Food Industry
作者简介
通信作者:袁小雪
