基于微分电位溶出分析技术的面制品中砷含量的快检方法  

Method for Rapid Determination of As Content in Flour Products Based on Potentiometric Stripping Analysis Technology

作　　者：李向力 王永 王法云 章建军 武军[2] 

机构地区：[1]河南省食品质量安全控制工程技术研究中心,河南省商业科学研究所有限责任公司,郑州450002 [2]郑州铁路职业技术学院,郑州450052

出　　处：《河南科学》2013年第9期1355-1357,共3页Henan Science

基　　金：河南省重大公益性科研项目(101100911300)

摘　　要：建立了微波消解-微分电位溶出分析法测定面制品中砷含量的方法.优化了实验条件如电沉积电位、平衡电位等,线性范围：砷0～200ng,检出限分别为3.63ng/mL,RSD=3.76%（n=7）.该法与国家标准原子荧光方法相比,具有检测速度快、成本低、结果稳定可靠等优点.测定面制品中砷含量的结果与原子荧光法无显著差异.A method for rapid determination of As in flour products by potentiometric stripping analysis technology. The experimental parameter, such as accumulation potential and equilibrium potential,were optimized. The peak currents were linear with the concentration in the range：0-200 ng. The detection limits were 3.63 ng/mL. RSD〈 3.76% （n=7）. Compared with atomic fluorescence method,this method is more rapid and cheaper. And results obtained by this method are as reliable as atomic fluorescence method.

关 键 词：微波消解 微分电位溶出分析技术 快速检测 面制品 砷 

分 类 号：R155.5[医药卫生—营养与食品卫生学]