电感耦合等离子体质谱(ICP-MS)法同时测定南通如皋地区蘘荷花苞中20种无机金属元素  

Simultaneous determination of 20 inorganic metal elements in Xianglotus buds from Rugao,Nantong region using ICP-MS

作　　者：杨娟[1] 张卫兵[1] 平文卉 于文斌 程晓宏[1] YANG Juan;ZHANG Weibing;PING Wenhui;YU Wenbin;CHENG Xiaohong(Nantong Center for Disease Control and Prevention,Nantong 226007)

机构地区：[1]南通市疾病预防控制中心,南通226007

出　　处：《中国食品添加剂》2024年第11期213-218,共6页China Food Additives

基　　金：南通市“十四五”科教强卫青年医学重点人才项目;南通市第六期江海英才市级培养专项第三层次。

摘　　要：运用微波消解-电感耦合等离子体质谱(ICP-MS)法建立了同时对蘘荷花苞中20种无机金属元素(Li、Be、Al、V、Cr、Mn、Co、Ni、Cu、Zn、As、Se、Cd、Ba、Pb、K、Ca、Na、Mg、Fe)定量检测的方法。探究了前处理消化方式、优化ICP-MS仪器参数、选择内标元素及检测模式对实验准确度的影响。实验结果表明:20种金属元素均呈现较好的线性关系,相关系数均大于0.999,按所建立实验方法对实际样品测定并进行加标回收实验,加标回收率在95.0%~104.6%之间,RSD为2.5%~6.8%。采用所建立的方法对国家标准物质GBW10019(GSB-10苹果)进行实验验证,测定值均在标准值不确定度范围内。该方法精密度好,准确度高,测试结果稳定,自动化程度高,满足对蘘荷花苞中金属元素的分析测定要求。A method for simultaneous quantitative detection of 20 inorganic metal elements(Li,Be,Al,V,Cr,Mn,Co,Ni,Cu,Zn,As,Se,Cd,Ba,Pb,K,Ca,Na,Mg,Fe)in the young flower buds of Xianglotus was established using microwave digestion and inductively coupled plasma mass spectrometry(ICP-MS).The impact of sample pre-treatment digestion methods,ICP-MS instrument parameters optimization,internal standard element selection,and effect of detection modes on experimental accuracy were studied.Results showed that all 20 metal elements exhibited good linearity with correlation coefficients greater than 0.999.Using the established method for real sample analysis and spiking recovery experiments,the recovery rates ranged from 95.0%to 104.6%with RSD value between 2.5%〜6.8%.Additionally,the method was validated using the national standard substance GBW10019(GSB-10 apple),and all results fell within the certified uncertainty range of the standard values.This method offered high precision,accuracy and stability,with a high degree of automation,making it suitable for the analysis and determination of metal elements in lotus flower buds.

关 键 词：蘘荷花苞 电感耦合等离子体质谱法 无机金属元素 

分 类 号：TS202.3[轻工技术与工程—食品科学] O657.63[轻工技术与工程—食品科学与工程]