TNF-β ELISA Kit
产品编号XYk00367
英文名称TNF-β ELISA Kit
规格价格96T/
线性范围31.3 - 2000 pg/ml
应用范围S/P/CC
检测限15 pg/ml
适用样品基质This kit is used for quantitative detection of human GDF-15
试剂盒组成Tumor necrosis factor β (TNF-β), also known as lymphotoxin-α (LT-α), and TNF-α, are two structurally and functionally related proteins that bind to the same cell surface receptors (TNF RI and TNF RII) and produce a vast range of similar, but not identical, effects. Among these effects is the ability to kill certain tumor cells directly, from which the names tumor necrosis factor and lymphotoxin both derive. Mature TNF-β/LT-α and TNF-α share approximately 35% protein sequence homology and the biologically active secreted forms of both proteins are homotrimers. Whereas TNF-α can exist as a type II membrane protein, TNF-β/LT-α possesses a typical signal peptide sequence and is a secreted protein. It has been shown that TNF-β/LT-α is also present on the cell surface of activated T, B and LAK cells as a heteromeric complex with LT-β, a type II membrane protein that is another member of the TNF ligand family. The genes for TNF-α, TNF-β/LT-α, and LT-β are closely linked within the major histo
描述Sandwich ELISA kit of Quantitative Detection for Human TNF-β
保存条件Store at 4°C for 6 months, at -20°C for 12 months. Avoid multiple freeze-thaw cycles (Shipped with wet ice.)
TNF-β ELISA Kit方法简介:
1、包被抗原:稀释液pH 9.6 碳酸盐缓冲液,多肽浓度2ug/ml,0.1ml/孔,4oC过夜,洗净
2、1%BSA (pH 9.6 碳酸盐缓冲液) 封闭,0.1ml/孔,37oC1h,洗净
3、稀释抗血清(可稀释不同浓度) 0.1ml/孔,37oC 30分钟,洗净
4、稀释辣根过氧化物每标记的二抗 0.1ml/孔,37oC 40分钟,洗净
5、显色:TMB显色
A液:四甲基联苯胺10mg 溶于DMF1ml中,再用pH5.0柠檬酸缓冲液稀释100倍
B液:5ul双氧水加蒸馏水12.5ml
终止液:2N硫酸
A液、B液各一滴,比光显色10分钟,终止液一滴
6、450nm 波长 测OD值
TNF-β ELISA Kit售后服务承诺: ■ 全程(售前,售后)提供技术指导,免除您实验的后顾之忧。 ■ 试剂盒**保障,有质量问题,免费包退换。 ■ 提供免费代测服务,让您省时省心。 ■ 送货上门,和各大快递公司都有合作,保证发货及时,运输无忧。 TNF-β ELISA Kit的优势: 1、雄厚的技术力量,**研发专家进行技术研发 2、高品质***的进口抗体,保证检测的灵敏度和特异性 3、先进的实验优化方案----重复性高,可靠性强 4、全天候的技术支持:专业,高效,耐心 5、可检测指标齐全:炎症因子、血管生成素、动脉粥样硬化因子、趋化因子、生长因子基质金属蛋白酶、脂肪因子等等 6.免费的专业代测服务,专家级规范操作,结果更**,时间更迅 7.更有相关文献做参考 TNF-β ELISA Kit标准曲线的绘制注意事项: 1、样品的浓度等指标是根据标准曲线计算出来的,所以首先要把做标准曲线看作是比做正式实验还要重要的一件事,否则后面的实验结果无从谈起。 2、设置标准曲线样品的标准浓度范围要有一个比较大的跨度,并且要能涵盖你所要检测实验样品的浓度,即样品的浓度要在标准曲线浓度范围之内,包括上限和下限。而对于呈S型的标准曲线,尽量要使实验样品的浓度在中间坡度*陡段,即曲线几乎成直线的范围内。 3、*好采用倍比稀释法配制标准曲线中的标准样品浓度,ELISA试剂盒这样就能够保证标准样品的浓度不会出现较大的偏离。 4、检测标准样品时,应按浓度递增顺序进行,以减少高浓度对低浓度的影响,提高准确性。 5、标准曲线的样品数一般为7个点,但至少要保证有5个点。 6、做出的标准曲线相关系数因实验要求不同而有所变动,但一般来说,相关系数R至少要大于0.98,对于有些实验,至少要0.99甚至是0.999.