作者:标准资料网 时间:2024-05-14 23:08:33   浏览:9406   来源:标准资料网

【英文标准名称】:Animalfeedingstuffs-Determinationofthecontentoffattyacids-Preparationofmethylesters
【原文标准名称】:动物饲料.脂肪酸含量的测定.甲酯的制备
【标准号】:BSDDISO/TS17764-1-2002
【标准状态】:现行
【国别】:英国
【发布日期】:2002-12-20
【实施或试行日期】:2002-12-20
【发布单位】:英国标准学会(BSI)
【起草单位】:BSI
【标准类型】:()
【标准水平】:()
【中文主题词】:农业;化学分析和试验;动物;含量测定;饲料;脂肪酸;甲酯;动物喂饲
【英文主题词】:Agriculture;Animalfeed;Animalfeeding;Animals;Chemicalanalysisandtesting;Determinationofcontent;Fattyacids;Methylesters
【摘要】:ISO/TS17764specifiesmethodsforthequantitativedeterminationofindividualfattyacidsandofthesumofthefattyacids(elutablefattyacids).ThispartofISO/TS17764specifiestwomethodsforpreparingthemethylestersoffattyacidsofanimatandvegetablefats,oilsandfattyacidmixturesforrawmaterialsforcompoundanimalfeeds,andfattyacidsoriginatingfromfatextractsofanimalfeedingstuffs,includingfatsandfattyacidmixturescontainingbutyricacid.Thegeneralmethod,theborontrifluoride(BF3)method,isconcernedwiththepreparationofmethylestersoffattyacidswithsixormoreCatoms,originatingfromfats,oilsandfreefattyacids.TheKOH/HCImethodisconcernedwiththepreparationofmethylestersoffattyacidswithfourormoreCatoms.ThismethodcanalsobeusedforthequantitativedeterminationoffattyacidswithachainlengthshorterthantenCatomsinfreefattyacidmixtures.Themethylestersproducedcanbeusedforgas-liquidchromatography(GLC).NOTE1Unsaponifiablematerialsarenotremovedandcan,whenpresentinconsiderableamounts,interferewiththechromatographicanalysis.NOTE2ISO/TS17764-2describestheapplicationofgaschromatographywithcapillarycolumnsandflameionizationdetectionforthedeterminationofthecontentoffattyacidsinafatbymakinguseofthemethylestersofthefattyacidsobtainedinaccordancewiththemethodsspecifiedinthispartofISO/TS17764.
【中国标准分类号】:B46
【国际标准分类号】:65_120
【页数】:14P;A4
【正文语种】:英语