电感耦合等离子体质谱法测定葡萄酒中微量元素
Determination of Trace Elements in Grape Wine by ICP-MS
摘 要
研究了正向功率、载气流速和取样深度对氧化物和双电荷的影响,并通过调谐液优化仪器参数,建立电感耦合等离子体质谱法快速测定葡萄酒中38种微量元素的分析方法.样品采用硝酸直接稀释测定,在优化的条件下,通过选择不受干扰的质量数、编辑干扰方程、内标元素校正等方法使干扰降至最低程度.方法的检出限在0.000 1~32.00 μg·L-1范围,各元素的加标回收率在84.0%~121%之间,相对标准偏差小于5.0%,适合于葡萄酒中多元素的同时测定,为葡萄酒元素指纹特征研究提供参考.
葡萄酒
微量元素
ICP-MS
Grape wine
Trace elements
Abstract
An ICP-MS method was proposed in this paper for the determination of 38 trace elements in grape wine.The wine sample was prepared by dilution with nitric acid.Working parameters were optimized via the study of the effects of RF power,carrier gas flow rate and sampling depth on the formation of oxides and double-charged particles.Under the optimized conditions,interferences were depressed to minimum extent via selecting the non-interfering isotopes,compiling the correction equations and using internal standards.The proposed method showed low detection limits,wide linearity,and recovery ranged in 84%-121% for various elements.Values of RSDs of the determination found were less than 5.0%.The method was feasible to be applied to the determination of trace elements in the wine and to provide a reference for finger-mark study of elements in the wine.
中图分类号 O657.31
所属栏目 工作简报
基金项目
收稿日期 2007/5/22
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备注连晓文(1973-),男,广东省人,主管技师,主要从事分析化学工作.
引用该论文: LIAN Xiao-wen,YANG Xiu-huan,LIANG Xu-xia. Determination of Trace Elements in Grape Wine by ICP-MS[J]. Physical Testing and Chemical Analysis part B:Chemical Analysis, 2008, 44(11): 1108～1111
连晓文,杨秀环,梁旭霞. 电感耦合等离子体质谱法测定葡萄酒中微量元素[J]. 理化检验－化学分册, 2008, 44(11): 1108～1111
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参考文献
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【2】Greenough J D,Longerich H P,Jackson S E.Element fingerprinting of okanagan valley wines using ICP-MS: relationships between wine composition,vineyard and wine color[J].Aust J Grape Wine Res,1997,3(2):75-83．
【3】Baxter M J,Crews H M,Dennis M J,et al.The determination of the authenticity of wine from its trace element composition[J].Food Chem,1997,60:443-450．
【4】Muranyi Z,Papp L.ICP-AES metal content analysis of wines made with different technologies[J].Acta Chim Hung-Models Chem,1997,134:529-537．
【5】Teissedre P,Lobinski R,Cabanis M,et al.On the origin of organolead compounds in wine[J].Sci Total Environ,1994,153:247-252．
【6】高建会,葛宝坤.原子吸收光谱法测定进口葡萄酒中的铁、锰、铜、锌[J].口岸卫生控制,1999,2(5):30-31．
【7】周荣荣,曹爱华,李若诗,等.原子吸收分光光度计测定葡萄酒中铁含量的两种方法比较[J].预防医学论坛,2005,11(2):204-205．
【8】王莹,辛士刚.ICP-AES 法测定葡萄酒中的微量元素[J].中国公共卫生,2005,21(2):242-243．
【9】范华锋.ICP-AES法对葡萄酒中几种元素的测定与结果分析[J].中国卫生检验杂志,2002,12(4):451-452．
【10】Tan S H,Horlick G.Matrix effect observations in inductively couplied plasma mass spectrometry[J].Appl Atom Spectrom,1987,2:745-763．
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