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小鼠腫瘤壞死因子α(TNFa)微量上樣酶聯(lián)免疫吸附檢測(cè)試劑盒

ELK1387MS

規(guī)格：	價(jià)格：
48T	￥1960.00
96T	￥2800.00

下載說(shuō)明 ①

Overview 文獻(xiàn)

Product name:	Mouse TNFa(Tumor Necrosis Factor Alpha) Microsample ELISA Kit
Reactivity:	Mouse
Alternative Names:	TNF Alpha; DIF; TNF-A; TNFSF2; Cachectin; Tumor Necrosis Factor Ligand Superfamily Member 2
Assay Type:	Sandwich
Sensitivity:	6.1 pg/mL
Standard:	1000 pg/mL
Detection Range:	15.63-1000 pg/mL
Sample Type:	serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Assay Length:	3.5h
Research Area:	Cytokine;Tumor immunity;Infection immunity;
Uniprot ID:	P06804
Test principle:	The test principle applied in this kit is Sandwich enzyme immunoassay. The microtiter plate provided in this kit has been pre-coated with an antibody specific to Mouse TNFa. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Mouse TNFa. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added, only those wells that contain Mouse TNFa, biotin-conjugated antibody and enzyme-conjugated Avidin will exhibit a change in color. The enzyme-substrate reaction is terminated by the addition of sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of Mouse TNFa in the samples is then determined by comparing the OD of the samples to the standard curve.

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標(biāo)準(zhǔn)曲線(xiàn)

Concentration (pg/mL)	OD	Corrected OD
1000.00	0.000	1.971
500.00	0.000	1.449
250.00	0.000	1.023
125.00	0.000	0.830
62.50	0.000	0.370
31.25	0.000	0.274
15.63	0.000	0.169
0.00	0.000	0.000

精密度

Intra-assay Precision (Precision within an assay)：CV%<8%

Three samples of known concentration were tested twenty times on one plate to assess intra-assay precision.

Inter-assay Precision (Precision between assays)：CV%<10%

Three samples of known concentration were tested in forty separate assays to assess inter-assay precision.

回收率

Matrices listed below were spiked with certain level of recombinant TNFa and the recovery rates were calculated by comparing the measured value to the expected amount of TNFa in samples.

Matrix	Recovery range	Average
serum(n=5)		%
EDTA plasma(n=5)		%
Heparin plasma(n=5)		%

線(xiàn)性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of TNFa and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.