气相色谱法检测牛奶中5种糖醇含量

TS207.3; 本文优化了牛奶中多种糖醇类甜味剂含量测定的气相色谱方法.样品中的糖醇经水提取,净化、冻干脱去水分后进行乙酰化反应,生成的糖醇乙酸酯衍生物采用非极性DB-1柱、氢火焰离子化检测器(FID)进行分离、检测,以峰保留时间定性,外标法定量.结果表明,5种糖醇在0.01~1.50 mg·mL-1线性关系良好,回收率为97.1%~102.0%,RSD均小于2%.该方法具有前处理简便、线性范围宽、准确度高、重复性好等优点,适于牛奶食品中糖醇含量的有效测定....

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Veröffentlicht in:现代食品 2022, Vol.28 (7), p.182-185
Hauptverfasser: 吴爱英, 宋纯艳, 相丽新
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container_title 现代食品
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creator 吴爱英
宋纯艳
相丽新
description TS207.3; 本文优化了牛奶中多种糖醇类甜味剂含量测定的气相色谱方法.样品中的糖醇经水提取,净化、冻干脱去水分后进行乙酰化反应,生成的糖醇乙酸酯衍生物采用非极性DB-1柱、氢火焰离子化检测器(FID)进行分离、检测,以峰保留时间定性,外标法定量.结果表明,5种糖醇在0.01~1.50 mg·mL-1线性关系良好,回收率为97.1%~102.0%,RSD均小于2%.该方法具有前处理简便、线性范围宽、准确度高、重复性好等优点,适于牛奶食品中糖醇含量的有效测定.
doi_str_mv 10.16736/j.cnki.cn41-1434/ts.2022.07.047
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title 气相色谱法检测牛奶中5种糖醇含量
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