多粮浓香型白酒酿酒专用粮多种金属元素检测方法的建立和研究  

Establishment and research on detection methods for multiple heavy metals in Luzhou-flavor liquor special grains

作　　者：张莹[1] 夏于林[1] 刘彬[1] 李明春[1] 何开蓉[1] 程铁辕[1] 凌跃[1] 

机构地区：[1]四川出入境检验检疫局四川酒类检测实验室,四川宜宾644000

出　　处：《中国酿造》2012年第10期168-171,共4页China Brewing

基　　金：四川省科技支撑计划项目(2010NZ0091)

摘　　要：建立了用ICP．MS在线内标法测定酿酒专用粮中多种金属元素的方法，探索了样品的前处理条件，并对IcP—MSI作参数及条件进行了优化。根据酿酒专用粮中所含各元素的含量高低差异，将待检测元素标准系列分为4组，NMg、AI、Fe线性范围0～800μg/L；Na、Ti、Cr、Mn线性范围0-400μg／L；V、Ni、As、Pb、Ba线性范围0～8μg／L；Co、Cu、Zn、Mo、Ag、Cd、Sn、Sb、Hg线性范围0-4μg／L时，实验加标回收率在86％-118％之间，相对标准偏差（n=6）均〈10％。采用该方法对多种酿酒专用粮样品进行了检测，结果表明精密度和准确度均满足分析要求。An ICP-MS online intemal calibration method for determination of multiple heavy metals in liquor special grain was established. The pre-treatment conditions, operation parameters and ICP-MS working conditions were optimized. According to contents levels of elements in liquor special grain, the standard series were divided into four groups. The liner range ofMg, Al, and Fe were 0-800μg/L; the liner range ofNa, Ti, Cr, and Mn were 0-400μg/L; the liner range of V, Ni, As, Pb, and Ba were 0-8μg/L; and the liner range of Co, Cu, Zn, Mo, Ag, Cd, Sn, Sb and Hg were 0-41μg/L. The recovery rate was in 86%-118% and relative standard deviation （n=6） less than 10%. Results of analysis of samples indicated that both precision and accuracy could meet the requirement of analysis.

关 键 词：酿酒专用粮 重金属 电感耦合等离子体质谱仪(ICP-MS) 

分 类 号：TS261.2[轻工技术与工程—发酵工程]