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EXPLORERTM微波形態萃取儀—快速、低溶劑消耗、低溫、高回收率CEM微波萃取的常規優勢1）微波萃取快速、安全、低溶劑消耗、無污染，高回收率，USEPA委托加州EPA對CEM的儀器進行*評估后，批準其作為EPA3546方法*的標準儀器。得到USEPA、FDA、AOAC、CAS、ASTM認可。2）不受含水量干擾EPA3545指出樣品含水量將會嚴重影響ASE萃取回收率，因此要求進行嚴格的干燥前處理。通常采用硫酸鈉或冷凍方法，易導致半揮發及揮發性分析物損失。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...