ISO 18252-2006 无水乳脂肪.气液色谱法测定甾醇合成物(常规法)

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【英文标准名称】:Anhydrousmilkfat-Determinationofsterolcompositionbygasliquidchromatography(Routinemethod)
【原文标准名称】:无水乳脂肪.气液色谱法测定甾醇合成物(常规法)
【标准号】:ISO18252-2006
【标准状态】:现行
【国别】:国际
【发布日期】:2006-02
【实施或试行日期】:
【发布单位】:国际标准化组织(ISO)
【起草单位】:ISO/TC34
【标准类型】:()
【标准水平】:()
【中文主题词】:色谱法;乳制品;定义;脂肪;液相色谱法;牛奶;常规试验;甾醇;无水
【英文主题词】:Chromatography;Dairyproducts;Definition;Definitions;Fats;Liquidchromatography;Milk;Routinetests;Sterols;Waterless
【摘要】:ThisInternationalStandardspecifiesaroutinegasliquidchromatographicmethodforthedeterminationofthesterolcompositioninanhydrousmilkfatextractedfromdairyproductsdirectlyontheunsaponifiablematter,ThefirstgoalofthisInternationalStandardisthequantitativeevaluationofcholesterol,whichrepresentsabout98%ofthesterolfractionofpuremilkfat.Moreover,inthecaseofanalysisofmilkfatinamixtureofvegetablefats,thespecifiedprocedureallowstheevaluationofthemostimportantphytosterols.Theprocedurehasbeenvalidatedonmilkfatsamplescontainingapproximately28%to32%ofvegetablefat.Duetotheabsenceofthepurificationstep,whichallowsthecompleteremovalofinterferingcompoundsfromtheunsaponifiablematter,particularcareshouldbetakenwhenapplyingthismethodtotheverificationofthepurityofmilkfatofunknownorigin.Inthecaseofsuspiciousresults,thereferencemethoddescribedinISO12078?IDF159canbeused.
【中国标准分类号】:X16
【国际标准分类号】:67_100_01
【页数】:13P;A4
【正文语种】:英语