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ICP-MS法同时测定辣木籽中22种无机元素及主成分分析和聚类分析
食品工业科技, 2021-06, Vol.42 (12), p.307-312
Copyright © Wanfang Data Co. Ltd. All Rights Reserved. ;ISSN: 1002-0306 ;DOI: 10.13386/j.issn1002-0306.2021010096
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Title:
ICP-MS法同时测定辣木籽中22种无机元素及主成分分析和聚类分析
Author:
牛延菲
;
曹红云
;
徐怡
;
张晓南
;
吴春华
Is Part Of:
食品工业科技, 2021-06, Vol.42 (12), p.307-312
Description:
TS207.3; 目的:建立电感耦合等离子体质谱法(ICP-MS)同时测定辣木籽中Na、Mg、Al、K、Ca、Cr、Mn、Fe、Co、Ni、Cu、Zn、As、Se、Mo、Ag、Cd、Sb、Ba、Hg、Tl、Pb 22种无机元素,确定辣木籽中无机元素的含量及其分布特征.方法:采集红河州元阳、红河州红河、红河州开远、楚雄州元谋、德宏州芒市、楚雄州双柏、昭通市巧家、昆明市东川、玉溪市元江、丽江市华坪10个产地样品,经微波消解,采用ICP-MS测定上述元素,从元素组学的角度建立无机元素指纹图谱,并用SPSS聚类分析和主成分分析评价其特征元素.结果:各元素线性关系良好(r>0.999),检测限0.04~78.44μg/L,精密度符合规定(RSD<5%),各元素加样回收率80.13%~113.66%(RSD<10%);不同产地的辣木籽中均含有较丰富的对人体有益的无机元素,较低的有害元素;主成分分析选出4个主因子,得出特征无机元素为Zn、Ca、Cu、Fe、Cr、Ba、Al;聚类分析聚为二大类,说明无机元素的含量与环境、地域等因素具有相关性.结论:ICP-MS法可用于辣木籽22种无机元素的测定,主成分分析法和聚类分析法可对辣木籽的品质进行评价,为辣木籽的开发利用提供研究基础.
Publisher:
西南林业大学化学与工程学院,云南昆明 650224
Language:
Chinese
Identifier:
ISSN: 1002-0306
DOI: 10.13386/j.issn1002-0306.2021010096
Source:
Directory of Open Access Journals
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