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1、本试剂盒只能用于科学研究，不得用于医学诊断人（ Human ）结核分枝杆菌相关y-干扰素（TB-IGRA）ELISA检测试剂盒使用说明书检测原理试剂盒采用双抗体一步夹心法酶联免疫吸附试验（ELISA ）。往预 先包被结核分枝杆菌相关y-干扰素（TB-IGRA ）抗体的包被微孔中, 依次加入标本、标准品、HRP标记的检测抗体，经过温育并彻底洗涤。 用底物TMB显色，TMB在过氧化物酶的催化下转化成蓝色，并在酸的 作用下转化成最终的黄色。颜色的深浅和样品中的结核分枝杆菌相1. 血清：使用不含热原和内毒素的试管，操作过程中避免任何细胞 刺激，收集血液后，3000转离心10分钟将血清和红细胞迅速小心地
2、 分离。2. 血浆:EDTA、柠檬酸盐或肝素抗凝。3000转离心30分钟取上清。3. 细胞上清液：3000转离心10分钟去除颗粒和聚合物。4. 组织匀浆：将组织加入适量生理盐水捣碎。3000转离心10分钟 取上清。5. 保存：如果样本收集后不及时检测，请按一次用量分装，冻存于-20C，避免反复冻融，在室温下解冻并确保样品均匀地充分解冻。自备物品1. 酶标仪（450nm）2. 高精度加样器及枪头:0.5-IOuL. 2-20uL. 20-200uL. 200-1000uL关Y-干扰素（TB-IGRA ）呈正相关。用酶标仪在450nm波长下测定 3. 37 C恒温箱吸光度（OD值），计算样品浓度。
3、样品收集、处理及保存方法操作注意事项1. 试剂盒保存在2-8 C，使用前室温平衡20分钟。从冰箱取出的浓缩洗涤液会有结晶，这属于正常现象，水浴加热使结晶完全溶解 试剂的准备后再使用。2. 实验中不用的板条应立即放回自封袋中，密封（低温干燥）保存。3. 浓度为0的SO号标准品即可视为阴性对照或者空白；按照说明书操作时样本已经稀释5倍，最终结果乘以5才是样本实际浓度。4. 严栺按照说明书中标明的时间、加液量及顺序进行温育操作。5. 所有液体组分使用前充分摇匀。试剂盒组成名称96孔配置48孔配置备注微孔酶标板12 孔x8 条12 孔x4 条无标准品0.3mL*6 管0.3mL*6 管无样本稀释液6m
4、L3mL无检测抗体-HRP10mL5mL无20x洗涤缓冲液25mL15mL按说明书进行稀释底物A6mL3mL无底物B6mL3mL无终止液6mL3mL无封板膜2张2张无1说明书1份1份无1自封袋1个1个无L注：标准品（S0-S5 ）浓度依次为:0、25、50、100、200、400 pg/mL20x洗涤缓冲液的稀释：蒸馏水按1： 20稀释，即1份的20x洗涤缓 冲液加19份的蒸馏水。洗板方法1. 手工洗板：甩尽孔内液体，每孔加满洗涤液，静置1min后甩尽孔内液体，在吸水纸上拍干，如此洗板5次。2. 自动洗板机：每孔注入洗液350 ML，浸泡1min，洗板5次。操作步骤1. 从室温平衡20min后
5、的铝箔袋中取出所需板条，剩余板条用自封 袋密封放回4C。2. 设置标准品孔和样本孔,标准品孔各加不同浓度的标准品50 mL；3. 样本孔先加待测样本10pL，再加样本稀释液40ML；空白孔不 加。4. 除空白孔外，标准品孔和样本孔中每孔加入辣根过氧化物酶（HRP ）标记的检测抗体100mL,用封板膜封住反应孔，37 C水浴锅或恒温箱温育60min。5. 弃去液体，吸水纸上拍干，每孔加满洗涤液，静置1min，甩去 洗涤液，吸水纸上拍干，如此重复洗板5次（也可用洗板机洗板）。6. 每孔加入底物A、B各50 ML, 37C避光孵育15min。7. 每孔加入终止液50pL, 15min内，在450nm
6、波长处测定各孔的 0D值。结果判断绘制标准曲线：在Excel工作表中，以标准品浓度作横坐标，对应 0D值作纵坐标，绘制出标准品线性回归曲线，按曲线方程计算各样 本浓度值。试剂盒性能1. 准确性：标准品线性回归与预期浓度相关系数R值，大于等于0.9900。2. 灵敏度：最低检测浓度小于1.0 pg/mL。3. 特异性：不与其它可溶性结构类似物交叉反应。4. 重复性：板内、板间变异系数均小于15%。5. 贮藏：2-8C，避光防潮保存。免责声明6. 有效期：6个月1. 试剂盒仅供研究使用，不得用于临床实验或人体实验，否则所 产生的一切后果，由实验者承担，本公司概不负责。2. 严栺按照说明书操作，实验
7、者违反说明书操作，后果由实验者 承担。sample, this TB-IGRA ELISA Kit includes a set of calibration standards. The calibration standards are assayed at the same time as the samples and allow the operator to produce a standard curve of Optical Density versus TB-IGRAconcentration. The concentration of TB-IGRA in the samp
8、les is then determined by comparing the O.D. of the samples to the standard curve.Sample collection and storagesSerum - Use a serum separator tube and allow samples to clot for 30 minutes before centrifugation for 10 minutes at approximately 3000x g. Remove serum and assay immediately or aliquot and
9、 store samples at -20C or -80 C .Avoid repeatedFOR RESEARCH USE ONLY.NOT FOR USE IN DIAGNOSTIC PROCEDURES.Human Tuberculosinterferon-gamma(TB-IGRA)ELISA Kit instructionIntended useThis TB-IGRA ELISA kit is intended Laboratory for Research use only and is not for use in diagnostic or therapeutic proc
10、edures.The Stop Solution changes the color from blue to yellow and the intensity of the color is measured at 450 nm using a spectrophotometer. In order to measure the concentration of TB-IGRA in the freeze-thaw cyclesPlasma - Collect plasma using EDTA or heparin as an anticoagulant. Centrifuge sampl
11、es for 30 minutes at 3000x g at 2-8 C within 30 minutes of collection. Storesamples at -20 Cor -80C. Avoid repeated freeze-thaw cycles.Cell culture supernates and other biological fluids - Remove particulatesby centrifugation and assay immediately or aliquot and store samples at -20Cor-80C. Avoid re
12、peated freeze-thaw cycles./j Note: The samples shoule be centrifugated dequately and no hemolysisor granule was allowed.Materials required but not supplied1. Standard microplate reader(450nm)2. Precision pipettes and Disposable pipette tips.3. 37 C incubatorPrecautionsUser manual11Sealed bags11Note:
13、 Standard (SO f S5) concentration was followed by: 0, 25, 50,100,200,400 pg/mL1. Do not substitute reagents from one kit to another. Standard, conjugate and microplates are matched for optimal performance. Use only the reagents supplied by manufacturer.2. Do not remove microplate from the storage ba
14、g until needed. Unused strips should be stored at 2-8C in their pouch with the desiccant provided.3. Mix all reagents before using.Remove all kit reagents from refrigerator and allow them to reach room temperature (20-25C)Materials suppliedName96 determinations48 determinationsMicroelisa stripplate1
15、2*8strips12*4stripsStandard0.3ml*6tubes0.3ml*6tubesSample Diluent6.0ml3.0mlHRP-Conjugate reagent10.0ml5.0ml20X Wash solution25ml15mlChromogen Solution A6.0ml3.0mlChromogen Solution B6.0ml3.0mlStop Solution6.0ml3.0mlClosure plate membrane22Reagent preparation20xwash solution:Dilute with Distilled or deionized water 1:20.Assay procedure1. Prepare all reagents before starting assay procedure. It is recommended th
