酸价的特异性检测方法——铜皂络合比色技术的研究进展Progress on cupric acetate-pyridine colorimetric method for specific quantitative determination of acid value

酸价的特异性检测方法——铜皂络合比色技术的研究进展Progress on cupric acetate-pyridine colorimetric method for specific quantitative determination of acid value

酸价（acid value, AV）指示油脂中游离脂肪酸(free fatty acid, FFA)含量，是油脂和含油食品最重要的质量指标和安全指标之一。针对现行AV测定标准的酸碱中和滴定技术的共性与非特异性的局限，旨在给复杂基质样品的特异性定量FFA或AV提供新思路，综述了最具代表性的FFA特异性检测技术——铜皂络合比色法的近70年的研究进展。阐述了有机相溶解液的毒性与显色强度之间的矛盾化解历程、铜盐-吡啶水相染色液的演化史、FFA的铜皂络合物结构解析过程，以及从pH调控的经典络合显色理论到以吡啶与铜离子摩尔比为核心的络合显色理论的新发展。吡啶与铜离子摩尔比为\[1，3）的络合显色理论、具有...

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Bibliographic Details
Main Author:	曹文明1,2，薛斌3,4, 屠炳芳3 CAO Wenming1,2, XUE Bin3,4， TU Bingfang3
Format:	Article
Language:	English
Published:	中粮工科（西安）国际工程有限公司 2022-03-01
Series:	Zhongguo youzhi
Subjects:	铜皂络合比色法；酸价；油脂；特异性检测 cupric acetate-pyridine colorimetric method; acid value; oils and fats; specific quantitative determination
Online Access:	http://tg.chinaoils.cn/ch/reader/create_pdf.aspx?file_no=20220319&year_id=2022&quarter_id=3&falg=1

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