微波等离子体光谱仪(MP-AES)高效测定啤酒中15种元素的方法研究  

DETERMINATION OF 15 METAL ELEMENTS IN BEER BY MICROWAVE PLASMA ATOMIC EMISSION SPECTROMETRY(MP-AES)

作　　者：刘学国[1,2] 李津 马晴[1] 范香 张赛楠 李少军 LIU Xue-guo;LI Jin;MA Qing;FAN Xiang;ZHANG Sai-nan;LI Shao-jun(Department of Biology and Chemical, Nanyang Institute of Technology, Nanyang 473004, China;Henan Key Laboratory of Industrial Microbial Resources and Fermentation Technology, Nanyang 473004, China)

机构地区：[1]南阳理工学院生物与化学工程学院,河南南阳473004 [2]河南省工业微生物资源与发酵技术重点实验室,河南南阳473004

出　　处：《南阳理工学院学报》2018年第6期103-107,共5页Journal of Nanyang Institute of Technology

基　　金：河南省科技攻关项目(182102110089);河南省教育厅高等学校重点科研项目(16A150018)

摘　　要：本文主要研究了微波等离子体原子发射光谱仪(MP-AES)同时测定精酿啤酒中的镉(Cd)、锌(Zn)、钴(Co)、镍(Ni)、锰(Mn)、铝(Al)、铜(Cu)、锶(Sr)、钼(Mo)、钾(K)、铬(Cr)、铅(Pb)、钡(Ba)、硒(Se)、砷(As) 15种元素的可行性。各种元素标准曲线线性良好,检出限在0.003～0.56 mg/L之间,相关系数不小于0.999,相对标准偏差在1.8%以内,15种元素方法回收率80.0%～120%。各元素的测定结果表明,该方法简单、快速、灵敏度高、线性范围宽、可操作性强,可同时测定啤酒中15种元素,并且无需使用任何易燃的危险气体(乙炔、一氧化二氮)或昂贵的稀有气体(氩气),较之传统原子吸收光谱法(AAS)具有诸多优势。This paper studies the fe Asibility of simultaneous determination of 15 elements(Cd,Zn,Co,Ni,Mn,Al,Cu,Sr,Mo,K,Cr,Pb,Ba,Se) in refined beer by microwave pl Asma atomic emission spectrometer(MP-AES).The standard curve of various elements is well linear,with a detection limit of 0.003~0.56 mg/L,the correlation coefficient ≥0.999,the relative standard deviation is within 1.8%,and the recovery rate of 15 elemental methods is 80.0%~120%.The determination results of each element show that the method is simple,f Ast,sensitive,wide linear range,and strong operability.It can determine 15 elements in beer at the same time and there is no need to use any flammable dangerous g As(acetylene,nitrous oxide) or expensive rare g As(argon),which h As many advantages over traditional atomic absorption spectroscopy(AAS).

关 键 词：MP-AES 啤酒 重金属元素 

分 类 号：O657[理学—分析化学]