文献汇报模版ppt演示课件.ppt

文档介绍：在此输入标题副标题*.目录IntroductionExperimentalResultsanddiscussionConclusion*.IntroductionChitin(poly-β-(1,4)-N-acetyl-d-glucosamine)ponentoffungiandyeastcellwalls,-basedscaffoldsrecentlyfoundbyourgroupsinmarinespongesarethree-worksoftube--stateNMR,infrared,Ramanaswellastime-resolvedlaserfluorescencespectroscopy.*.ExperimentalMarinespongeAplysinaaerophoba:collectedintheAdriaticSea(KotorBay,Montenegro):purchasedfromGrüssing(99%).Concentratedaceticacid:purchasedfromVWR(HPLCgrade).α-Chitin:purchasedfromCarlRothGmbH(depure).NaClO4·2H2O,NaOHandHCl:purchasedfromMerck(analyticalgrade).ConcentratedHNO3:purchasedfromCarlRothGmbH(analyticalgrade):purchasedfromMerck(ICP-MSstandard).UO2(ClO4)2::(NaClO4)*.pletelyacetylatedwithinthelimitsofexperimentalerror.(甲基的相对强度为103%)Theextractedfibersconsistofconcentricallyarrangedandlooselypackedtubularstructureswithhollowspacesinbetween.(由松散的同心排列的管状结构组成)worksdriedwe