原子吸收技术检测食品中金属元素含量的运用分析  

Application Analysis of Atomic Absorption Technology for Determination of Metal Elements in Food

作　　者：赵晓平 ZHAO Xiaoping(Lvliang City Comprehensive Inspection and Testing Center,Lvliang 033000,China)

机构地区：[1]吕梁市综合检验检测中心,山西吕梁033000

出　　处：《现代食品》2025年第6期192-194,共3页Modern Food

摘　　要：为研究原子吸收技术在检测食品中金属元素含量方面的应用,本文采用固体进样石墨炉原子吸收光谱法(SS-GFAAS),对市售大米和多种蔬菜中的镉、铅、铜和铬进行了测定。文章通过对标准物质和质控样品的分析,验证了该方法的准确性和精密度,并与电感耦合等离子体质谱法(ICP-MS)进行了比对。结果指出,SS-GFAAS方法具有良好的线性关系(相关系数R~2>0.999)、低检出限和测定下限、良好的精密度(RSD<10%),测定结果与证书值符合良好。实际样品的测试结果准确可靠,说明该方法适用于食品中重金属元素的测定,具有操作简便、快速、高效等优点,具有良好的推广应用前景。In order to study atomic absorption technology in food metal-element detection,this paper uses solid injection graphite furnace atomic absorption spectroscopy(SS-GF AAS)to determine cadmium,lead,copper and chromium in commercial rice and vegetables.The method’s accuracy and precision were verified and compared with inductively coupled plasma mass spectrometry(ICP-MS).Results show SS-GF AAS has a good linear relationship(R2>0.999),low detection and measurement limits,and good precision(RSD<10%).The measurement results match well with the certificate value.The test results of actual samples are accurate and reliable.This method is suitable for heavy-metal determination in food,featuring simple and fast operation and high efficiency,and has good promotion prospects.

关 键 词：固体进样石墨炉原子吸收 食品 重金属 镉 铅 铜 

分 类 号：O657.31[理学—分析化学]