EXPLORERTM微波形态萃取仪—快速、低溶剂消耗、低温、高回收率CEM微波萃取的常规优势1）微波萃取快速、安全、低溶剂消耗、无污染，高回收率，USEPA委托加州EPA对CEM的仪器进行*评估后，批准其作为EPA3546方法*的标准仪器。得到USEPA、FDA、AOAC、CAS、ASTM认可。2）不受含水量干扰EPA3545指出样品含水量将会严重影响ASE萃取回收率，因此要求进行严格的干燥前处理。通常采用硫酸钠或冷冻方法，易导致半挥发及挥发性分析物损失。而微波萃取回收率不受...

INTRODUCTIONPeptoidsarepolymersofvarious（N-alkyl）glycines.1Whiletheyaresimilarinstructuretopeptides（Figure1）,peptoidslackapeptidebondmakingthemresistanttoproteolyticactivityinvivo1,2.Thisstabilitymakespeptoidsanattractivepeptidomimetictarge...

INTRODUCTIONTheN-α-Fmoc-α-aminoisobutyricacidderivative（Aib）isadifficultderivativeforcouplinginSPPSduetoitssecondmethylgroupontheα-carbonthatinterfereswiththecouplingreaction（Figure1）.However,itcanbefoundinanumberofbiologicallyrelevantcompo...

INTRODUCTIONTheAKR/Grossmurineleukemiaviruses（MuLV）areC-typeretrovirusesthatcausethedevelopmentofleukemiainAKR（H-2k）mice.1Type-specificantiretroviralcytotoxicT-lymphocyte（CTL）responseshavebeenreportedthatallowdifferentiationbetweeninfection...

INTRODUCTIONInthedevelopmentofantibodiesdirectedagainstspecificpeptidesequences,T-helperepitopesareoftentaggedontothepeptidesequencetoaidinthestimulationoftheimmuneresponse.OnesuchsequenceistheuniversalPanHLADR-bindingepitope（PADRE）.Synthes...

INTRODUCTIONOnechallengefacingpeptidesynthesisisthe-lactamformationofarginine（Figure1）.Theformationof-lactamoccurswhentheinternalnitrogenoftheguanidineattackstheactivatedester,irreversiblyformingthelactamring.Thisreactioniscompetitivewithpe...