摘要
目的:建立火焰原子吸收光谱法同时测定玻璃制品中铅、镉迁移量的分析方法。方法:玻璃制品试样经清洗晾干,注入4%乙酸溶液,于22 ℃下进行24 h迁移试验,浸泡液供原子吸收分光光度计测定。结果:铅、镉两种元素在各自线性范围内线性关系良好,检出限分别为0.07 mg·L^(-1)、0.007 mg·L^(-1),加标回收率在92.0%~104.5%,相对标准偏差≤3.82%。结论:该方法操作简便、准确快速,适用于食品接触用玻璃制品中铅、镉迁移量的批量分析检测。
Objective:An analytical method for simultaneous determination of plumbum and cadmium migration in glass products by flame atomic absorption spectrometry was established.Method:The glass samples were washed and dried,injected with 4%acetic acid solution,and carried out migration test at 22℃for 24 h.The soaked solution was used for the determination by atomic absorption spectrophotometer.Result:The detection limits of plumbum and cadmium were 0.07 mg·L^(-1) and 0.007 mg·L^(-1),respectively.The recoveries of plumbum and cadmium were between 92.0%and 104.5%,and the relative standard deviation was less than 3.82%.Conclusion:The method is simple,accurate and rapid,and is suitable for batch analysis and detection of plumbum and cadmium migration in glass products for food contact.
作者
苏崯
王永卿
张莎
SU Yin;WANG Yongqing;ZHANG Sha(Qixian Comprehensive Inspection and Testing Center(National Glassware Product Quality Supervision and Inspection Center),Jinzhong 030900,China)
出处
《食品安全导刊》
2024年第16期108-110,共3页
China Food Safety Magazine
关键词
原子吸收光谱法
玻璃制品
铅
镉
flame atomic absorption spectroscopy
glassware
plumbum
cadmium
