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梯度洗脱优化-离子色谱-脉冲安培法分析婴幼儿配方乳粉中的糖和糖醇
  • ISSN号:1000-8713
  • 期刊名称:《色谱》
  • 时间:0
  • 分类:O658[理学—分析化学;理学—化学]
  • 作者机构:[1]浙江省质量检测科学研究院,浙江杭州310018, [2]浙江大学化学系,浙江杭州310010, [3]惠州市食品药品检验所,广东惠州516003
  • 相关基金:国家重大科学仪器设备开发专项(2012YQ09022903);浙江省公益性技术应用研究计划项目(2015C37055);浙江省质监局科技计划项目(20160102).
中文摘要:

建立了梯度洗脱优化-离子色谱-脉冲安培检测技术分析婴幼儿配方乳粉中麦芽糖醇、半乳糖、葡萄糖、蔗糖、 果糖、乳糖6种与代谢疾病紧密相关的糖和糖醇的方法.该方法对样品的前处理、色谱柱的选择、淋洗液的梯度等 色谱条件进行了优化,重点研究了淋洗液梯度对各组分分离效果的影响.将梯度洗脱程序分解为弱保留组分分 离、乳糖分离、基质消除、系统平衡4个子程序,并分别对其进行了条件优化,实现了 6种组分的完全分离,并有效 解决了弱保留组分色谱峰易重叠、乳糖色谱峰易拖尾等现象.6种组分的线性范围为0. 5-100 mg/L,相关系数 (r )〉0. 99,方法的检出限(S/N= 3 )为0. 06-0. 40 mg/L.该方法具有分离度好、灵敏度高等优点,可满足例行分析 的要求,同时也为淋洗液的梯度优化提供了可借鉴的方法.

英文摘要:

A method was developed for the determination of carbohydrates and sugar alcohol related closely to metabolic diseases in infant formula, including maltitol, galactose, glucose, sucrose, fructose and lactose, by ion chromatography (IC) with pulsed amperometric detection and an optimized gradient elution. The developed method included the systematic optimizations of sample pre-treatment,column selection and gradient elution. And more attention has been paid to optimizing the gradient elution program. According to the chromatographic behavior of the targets, the total gradient elution was divided into four subprograms, including separation of the analytes with weaker retentions,separation of lactose,matrix elimination and system equilibrium, and each part was also optimized in detail. By the optimized gradient elution, both negative chromatographic phenomena of overlapping between analytes with weak retentions and tailing for lactose were eliminated well, and all of the analytes were separated completely.Both maltitol and galactose were fitted well with quadratic curve, and the others were fitted well with linear equation, with the correlation coefficients (r ) greater than 0. 99, in the con-centration range of 0. 5-100 m^^L, with the limits of detection (LODs) (S/N =3) of 0. 06-0. 40 mg/L. The developed method offered a helpful method for gradient elution optimization, and it had been used for the determination of the real samples. It was proved to be feasible for routine analysis.

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期刊信息
  • 《色谱》
  • 北大核心期刊(2011版)
  • 主管单位:中国科学技术协会
  • 主办单位:中国化学会 中国科学院大连化学物理研究所
  • 主编:张玉奎
  • 地址:大连市中山路457号
  • 邮编:116023
  • 邮箱:sepu@dicp.ac.cn
  • 电话:0411-84379021
  • 国际标准刊号:ISSN:1000-8713
  • 国内统一刊号:ISSN:21-1185/O6
  • 邮发代号:8-43
  • 获奖情况:
  • 1998年获中国科学院科学出版基金择优支持(1998-2...,2001年获第四届中国科学院优秀期刊二等奖,2002年获第三届中国科协优秀期刊三等奖,连续多年被评为辽宁省一级期刊
  • 国内外数据库收录:
  • 俄罗斯文摘杂志,美国化学文摘(网络版),波兰哥白尼索引,荷兰文摘与引文数据库,美国生物医学检索系统,美国剑桥科学文摘,日本日本科学技术振兴机构数据库,中国中国科技核心期刊,中国北大核心期刊(2004版),中国北大核心期刊(2008版),中国北大核心期刊(2011版),中国北大核心期刊(2014版),英国英国皇家化学学会文摘,中国北大核心期刊(2000版)
  • 被引量:26730