期刊论文

Principal component analysis and cluster analysis of inorganic elements in Baijiu using inductively coupled plasma tandem mass spectrometry

中文

食品与发酵工业

0253-990X

2020

46

3

257-263

10.13995/j.cnki.11-1802/ts.022562

81603400:国家自然科学基金 kq1802017:长沙市杰出创新青年培养计划 kq1901067:长沙市科技计划 201805:湖南省中医药研究院科研项目

本校为其他机构

建立电感耦合等离子体串联质谱(inductively coupled plasma tandem mass spectrometry,ICP-MS/MS)法测定18种白酒中14种无机元素的含量,研究白酒中无机元素含量的分布规律及其与白酒品种之间的关系.白酒样品经简单稀释后直接进样,采用ICP-MS/MS测定其中Mg、Al、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Se、Sr、Ba、Pb的含量,在MS/MS模式下,分别选择O2和NH3/He为反应气,消除质谱干扰,将分析结果进行标准化处理后利用SPSS主成分分析和聚类分析对无机元素分布进行评价.各元素的检出限为1.34 ～ 25.8 ng/L,加标回收率为93.0％ ～ 105％,相对标准偏差(RSD)≤3.84％,方法的检出限低、准确度好、稳定性和精密...

An analytical method for the determination of 14 inorganic elements in 18 Baijiu was developed by inductively coupled plasma tandem mass spectrometry (ICP-MS/MS).The distribution of inorganic elements in Baijiu and the relationship between inorganic elements and different kinds of Baijiu were investigated.After dilution,the Baijiu samples were directly injected into ICP-MS/MS for the determination the contents of Mg,Al,Cr,Mn,Fe,Co,Ni,Cu,Zn,As,Se,Sr,Ba and Pb.In the MS/MS mode,O_2 and NH_3/He were selected as reaction gases to remove spectral in...