含有共轭双键的油脂及脂肪酸的碘值测定

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英文篇名：Iodine Determination of Oils, Fats and Fatty Acids with Conjugated Double Bonds 作者：张云荣 ; 王军 ; 傅庆红 ; 包先锋 英文作者：ZHANG Yun-rong;WANG Jun;FU Qing-hong;BAO Xian-feng;Anhui Refined Oil and Fat Co.Ltd.; 关键词：国家标准 ; 共轭化 ; 油脂 ; 脂肪酸 ; 碘值测定 英文关键词：national standard;;conjugation;;oils and fats;;fatty acid;;iodine determination 中文刊名：AHHG 英文刊名：Anhui Chemical Industry 机构：安徽省瑞芬得油脂深加工有限公司; 出版日期：2019-06-15 出版单位：安徽化工 年：2019 期：v.45;No.219 语种：中文; 页：AHHG201903037 页数：4 CN：03 ISSN：34-1114/TQ 分类号：110-112+116

摘要

按照GB/T 5532-2008《动植物油脂碘值的测定》不能够准确测出共轭油脂及脂肪酸的碘值。适当延长韦氏液的反应时间和控制反应温度是准确测试含有共轭双键油脂、油酸碘值的关键。提出了"隔夜碘值"的概念,该方法是对GB/T 5532-2008《动植物油脂碘值的测定》测试方法的完善和补充。当反应温度为25℃,反应时间为12 h以上时能完全测试出产品的碘值。
        By GB/T 5532-2008"Animal and vegetalbe fats and oils-determination of iodine value"method,the iodine value of conjugated oils, fats and fatty acids cannot be accurately tested. Properly extending the reaction time of the Wijs reagent and controlling the reaction temperature are the key to accurately test the iodine value of oils, fats and fatty acids with conjugated double bonds. The article puts forward the concept of "overnight iodine value", which is a perfection and supplement to the test method of GB/T 5532-2008 "Animal and vegetable oils and fats-determination of iodine value". When the reaction temperature is 25℃ and the reaction time is 12 hours or more, the iodine value of the product can be completely tested by this method.

引文

[1]武利民.涂料技术基础[M].北京:化学工业出版社,1999:20-23.
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    [3] GB/T 5532-2008,动植物油脂碘值的测定[S].
    [4] ISO3961-2018 Animal fats and vegetable oils-determination of iodine value, sixth edition,2018-08.
    [5]邢其毅.基础有机化学(上册)[M]. 4版.北京:北京大学出版社,2016:336-407.
    [6] Q/RFD 02-2019,动植物油脂及其脂肪酸的碘值测定[S].