2,6-二氯嘌呤中杂质的LC-MS鉴定
...-二氯嘌呤中的三个主要杂质,其中二个分别为2-氯-6-羟基嘌呤和6-氯嘌呤,另一种推测为一种未曾报道的新化合物,其可能的分子式为C5HClN4O2。关键词液质联用2,6-二氯嘌呤2-氯-6-羟基嘌呤6-氯嘌呤 1前言2,6-二氯嘌...
药品天地;专业药学;实验技术;色谱技术;色谱论文Anaffinity/aviditymodelofperipheralTcellregulation
...resentexperimentsatE/Tsof0.2:1to1:1,andfinalconcentrationsofmAbswere12.5–25μg/ml.TheE/Tneededforhalfmaximuminhibition(EI50)wasusedtomeasurethesusceptibilityofeachCD4+TcellclonetodownregulationbytheCD8+Tcells.AsshowninFigure2BandTable1,thehigh–affinity/aviditycloneswithED50below1μMwereresistant...
医源资料库;在线期刊;临床研究杂志;2005年第115卷第2期NewCriteriaforImmunofluorescenceAssayforQFeverDiagnosisinJapan
...onfirmedQfevercaseswithanimmunoglobulinM(IgM)titerof1:128and/orIgGtiterof1:256bytheIFAtestwerepositivebybothenzyme-linkedimmunosorbentassay(ELISA)andWesternblottingassay(WBA),whereas298serafrompneumoniapatientsand26negativeserawithanIgMtiterof1:16andanIgGtiterof1:32bytheIFAtestwerenegativebybothELIS...
医源资料库;在线期刊;微生物临床杂志;2005年第43卷第11期朱砂莲挥发油成分的气相色谱—质谱分析
...。 2.2分析条件 2.2.1色谱条件色谱柱为HP-5MS(30m×0.25mm)弹性石英毛细管柱,载气为氦气。气化室温度260℃,接口温度220℃,程序升温50℃6℃/min→140℃13℃/min→230℃(保持5min)。 2.2.2质谱条件EI电离源,电子能量70ev...
药品天地;专业药学;实验技术;色谱技术;色谱论文UncultivatedPhylotypesandNewlyNamedSpeciesAssociatedwithPrimaryandPersistentEndodonticInfections
...armethods.TheseincludeTannerellaforsythia(6,34),severalTreponemaspecies(16,25,29),Prevotellatannerae(39),Filifactoralocis(28),Dialisterpneumosintes(30),Haemophilusaphrophilus(34),Eubacteriuminfirmum(12),andCentipedaperiodontii(31),allofthemrecognizedperiodontalpathogens.MembersofthefamilyCoriobacter...
医源资料库;在线期刊;微生物临床杂志;2005年第43卷第7期PurificationandCharacterizationofNipahVirusNucleocapsidProteinProducedinInsectCells
...rthgenus,Henipavirus,hasbeenproposed,whichincludestheHendraandNipahviruses(25).Nucleocapsidsofparamyxovirusesappearastypicalhelicalorherringbone-likestructures(12)whichareoftenusedfortheidentificationofvirusesinthisfamily.Thehelicalparametershavebeenstudiedextensivelybynegativestainingandmetalshadow...
医源资料库;在线期刊;微生物临床杂志;2005年第43卷第7期羟基喜树碱与羟基喜树碱联合干扰素膀胱内灌注预防56例浅表性膀胱癌术后复发的临床对照研究
【摘要】目的:探讨羟基喜树碱与羟基喜树碱联合干扰素(IFN-α-2b)膀胱内灌注对预防浅表性膀胱癌术后复发的疗效和安全性。方法:56例浅表性膀胱癌患者行手术治疗,术后随机分为两组,A组(28例)行羟基喜树碱膀胱灌注,B...
医源资料库;在线期刊;中国民康医学;2009年第21卷第13期EffectsofSomatosensoryStimulationonUse-DependentPlasticityinChronicStroke
...sityHospitalInselspital,BernSwitzerland.AbstractBackgroundandPurpose—Thereisaneedtodevelopstrategiestoenhancethebeneficialeffectsofmotortraining,includinguse-dependentplasticity(UDP),inneurorehabilitation.Peripheralnervestimulation(PNS)modulatesmotorcorticalexcitabilityinhealthyhumansandcouldinflu...
医源资料库;在线期刊;中风学杂志;2006年第37卷第1期羟基喜树碱联合5-氟尿嘧啶、顺铂腹腔灌注热化疗治疗晚期胃癌39例临床观察
【摘要】目的观察羟基喜树碱静脉滴注全身化疗联合5-氟尿嘧啶、顺铂腹腔灌注加热疗治疗晚期胃癌的疗效和毒副反应。方法胃癌39例,均为Ⅲ~Ⅳ期,采用羟基喜树碱10mg静脉滴注,连用5天;5-氟尿嘧啶750~1000mg,顺铂50~60mg加生...
医源资料库;在线期刊;中华医药杂志;2005年第5卷第9期NewAnnieandWillieNelsonProfessorsaysawardismusictohisears
...talbiologist,Ihaveanaturalinterestinstemcellbiology,andmylabhasinitiatedsomeinterestingprojectsonthecontrolofstemcellfates.Second,Ilovecountrymusic,andIthinkI’mabiggerfanofthegenrethananyofmycolleagues.SinceIloveTexasandcountrymusicandWillieNelsonisaniconofboth,beingnamedtheWillieNelsonProfessoris...
医源资料库;在线期刊;临床研究杂志;2005年第115卷第8期