FATTY ACIDS

BESIDESPREPARINGFATTYACIDS,GLYCERIDESANDGLCSTANDARDS,Nu-chekHASANARRAYOFITEMSWHICHARELISTEDBELOW.IFYOUWOULDLIKEINFORMATIONONANYOFTHEITEMS,PLEASECALL,FAX,OREMAIL.  

 PRODUCTS•FattyAcidsandEsterHomologs 

 (SaturatedandUnsaturated,OddandEven–Chains)

 Acid-MethylEsters–EthylEsters

•Glycerides

 Triglycerides–Diglycerides–Monoglycerides

•AcidChlorides

•FattyAlcohols

•FattyAcetates

•CholesterylEsters

•Alkyl-Methane-Sulfonates

•SoapsofFattyAcids

•WaxEsters STANDARDREFERENCEMIXTURES•GLCMixtures

•GLCNIHSeries

•GLCAlcoholSeries

•GLCAcetateSeries

•GLCTrigylcerideSeries

•GLCSpecialReferenceStandards

•TLCMixtures   

 FATTYACIDSANDESTERHOMOLOGSEvennumberedchainsofsaturatedandunsaturatedfattyacidsoccurpredominatelyinmanyofnature'sanimalandvegetablefatsandoils.Untilrecentlyitwasassumedthattheoccurrenceofstraightchainoddnumberfattyacidsinnaturalfatwererare.Recentlyanalyticalinstrumentationhasproventhistobeafallacy,sincethepresenceofoddnumbercarbonfattyacidshavebeenshowntooccurasminorconstituentsinpracticallyeverynaturalfat.Whatroletheyactuallyplayinnature'sschememaybeeventuallyestablishedbycontinuedresearch.Nu-Chekhighpuritylipidsareisolatedinourownlaboratoryfromthebestcommercialanimalorvegetableoilsourceavailable.Fattyacidchainsofoddnumberedcompoundsaregenerallysynthesizedbychainextension.Saturatedchainsandtheunsaturatedseries(otherthanpolyunsaturatedfats)arealwayspurifiedbyafinaldistillationonahundredtheoreticalplatehighvacuumfractioncolumn.Thisisdonetoremovecoloralongwithotherextraneoustraceimpurities.OnlythosefractionsonwhichimpuritiesareunabletobedetectedevenwithlargeoverloadsbothbyGLCandTLCaremadeavailableforproductsale.TheIsolationofhighpuritycompounds(eventhesaturatedseries)arealwaysprotectedunderanatmosphereofinertgas(i.e.N2