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..毕业论文题目:乙肝表面抗原的ELISA法定量分析方法学验证姓名:张珊学号:系别:年级:专业:医学检验指导教师:二○一一年十二月目录中文文献..........................................................................................................................英文摘要..........................................................................................................................前言..............................................................................................错误!未定义书签。1.材料与方法...............................................................................错误!未定义书签。1.1试剂盒..............................................................................................................1.2仪器..................................................................................................................1.3方法....................................................................................................................1.3.2.铺板方案................................................................................................1.3.3.加样步骤................................................................................................2.结果.............................................................................................................................2.1标准曲线与线性范围........................................................................................2.2准确度(回收率)的验证..............................................................................22.3精密度的验证....................................................................................................2.3.1板内精密度的验证..................................................................................2.3.2板间精密度的验证..................................................................................2.4检测限(LOD)计算.....................................................................................53.讨论...........................................................................................................................53.1乙肝表面抗原定量分析的意义......................................................................53.2常用定量分析方法..........................................................................................63.3方法概述..........................................................................................................63.4方法学验证内容..............................................................................................63.5结果分析及应用评价......................................................................................7参考文献........................................................................................................................7I乙肝表面抗原的ELISA法定量分析方法学验证摘要目的:对福州蓝图生物工程有限公司生产的HBsAg的ELISA法定量分析试剂盒进行方法学验证,以判断是否能用于临床样本分析。方法:ELISA法定量分析,应用试剂盒HBsAg标准品从浓度为8ng/ml做2倍稀释的6个浓度梯度做标准曲线,以6,3,1.5ng/ml3个浓度梯度5复孔做准确度,精密度和检测限等方法学验证。结果:标准曲线R2=0.997,准确度97.07%,1.5ng/ml的RSD为16.78%,不满足ng/ml级水平的RSD一般应15%的要求,检测限LOD为0.172ng/ml,低浓度样品(1.5ng/ml)的检测在准确性和精密度方面都低于高浓度样品,不适合低浓度样品的检测。结论:该HBsAg的ELISA法定量分析试剂盒不能用于临床标本的分析。关键词乙肝表面抗原ELISA定量分析方法学验证ThereificationoftheHBsAgELISAquantitativemethodologyAbstractObject:toverifythequantitativemethodologyofFuzhoublueprintbiologicalengineeringcompanytomakesurewhetheritcabeusedtotheanalysisofClinicalSample.Methods:ELISAquantitativemethodology,makeanApplicationofthestandardHBsAgkitfromtheconcentrationof8ng/mldo2timesdilutedsixconcentrationgradienttoconstituteastandardcurve,testingWith6,3,1.5ng/ml3aconcentrationgradient5accuratelypreciseanddetection.Results:standardcurve,R2=0.997,theaccuracyofRSDof1.5ng/mis16.78%,theRSDthatcannotmeetthedemandofng/mlbasiclevelislessthan15%incommon.TheLODis0.172ng/ml,thetestingofLowconcentrationsamples(1.5ng/ml)arelowerthanhighconcentrationsamplesinbothaccuracyandprecision,whichasaresultmakeitunsuitableforlowconcentrationsampletesting.Conclusion:theELISAquantitativeanalysiskitofHBsAgcannotbeusedfortheanalysisofClinicalSample.KeywordsHBsAgQuantitativeanalysisVerificationMethodology.1前言乙肝病毒感染是我国最常见的感染性疾病之一,而乙型肝炎血清标志物是检测乙肝病毒感染最主要的病原标志。随着免疫学技术的不断发展,抗原抗体检测灵敏度明显提高,使低水平乙肝病毒得以检出,对临床诊断及流行病学有重要意义[1]。ELISA法具有较高灵敏度、特异性强、重复性好、可进行定量和半定量测定等优点,可以在酶免疫分析仪上做批量检测。目前临床上多倾向于做定量分析,若想知道检验结果是否可靠,实验室则必须对所用试剂盒进行方法学验证,本实验对福州蓝图生物工程有限公司生产的HBsAg的ELISA法定量分析试剂盒进行准确度,精密度和检测限等方法学验证,现报告如下。1.材料与方法1.1试剂盒乙肝表面抗原ELISA法定量分析试剂盒,福州蓝图生物工程有限公司出品。1.2仪器酶标仪:Bio-Rad680;洗板机:Bio-Rad1575;超纯水系统:MilliporeElix;电热恒温培养箱(DNP-9052)上海精宏实验设备有限公司;振荡器(苏州管械,KJ-201A);移液器;Tip头;EP管。1.3方法1.3.1.溶液配置1×PBS缓冲液的配置:称取8gNaCl、0.2gKCl、1.44gNa2HPO4和0.24gKH2PO4,溶于800ml蒸馏水中,用HCl调节溶液的pH值至7.4,最后加蒸馏水定容至1L即可。标准品的配置:原始标准品浓度为8ng/ml。。取6个2mlEP管,分别标记为S1-S6。50ul/well,共1孔需50ul,每孔配置60ul备用,按照下表稀释方案进行稀释。质控品的配置:50ul/well,共5复孔需250ul,配置300ul备用,取3个2mlEP管,分别标记为C1,C2,C3,按照下表稀释方案进行稀释。编号终浓度(ng/ml)预加1×PBS取剩余(ul)标记(ul)S180标准品120S2460S16060S3260S26060S4160S36060S50.560S46060S60.2560S56060编号终浓度(ng/ml)预加1×PBS取剩余(ul)标记(ul)C16150标准品450C23300C1300300C31.5300C230030021.3.2.铺板方案取出试剂盒中已包被酶标板,取出板条,按照下表铺板方案进行铺板在相应孔中依次加入系列标准品、质控品及空白对照,每孔50ul。空白对照加入1×PBS缓冲液。1.3.3.加样步骤加入酶标抗体,50ul/well,震荡。37℃电热恒温培养箱温育60min,取出后洗板4次,加入A、B液,50ul/well,37℃电热恒温培养箱温育15min。加入终止液,50ul/well。酶标板放入酶标仪,盖上盖子,在电脑上打开MicroplateManager5.2软件,
本文标题:医学检验本科毕业论文范例-供参考
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