,

產(chǎn)品中心

人B細胞活化因子(BAFF/CD257)微量上樣酶聯(lián)免疫吸附檢測試劑盒

一鍵復(fù)制產(chǎn)品信息

ELK2145MS

規(guī)格：	價格：
48T	￥1960.00
96T	￥2800.00
96T*5	￥11900.00

下載說明 ①

Overview

Product name:	Human BAFF/CD257(B-Cell Activating Factor) Microsample ELISA Kit
Reactivity:	Human
Alternative Names:	CD257; TNFSF13B; BLYS; TALL1; THANK; TNFSF20; ZTNF4; B lymphocyte stimulator; Tumor Necrosis Factor Ligand Superfamily Member 13B; Dendritic cell-derived TNF-like; BAFF
Assay Type:	Sandwich
Sensitivity:	29 pg/mL
Standard:	5000 pg/mL
Detection Range:	78.13-5000 pg/mL
Sample Type:	serum, plasma, tissue homogenates and other biological fluids
Assay Length:	3.5h
Research Area:	CD & Adhesion molecule;Tumor immunity;Infection immunity;Immune molecule;
Uniprot ID:	Q9Y275
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 Human BAFF/CD257. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human BAFF/CD257. 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 Human BAFF/CD257, 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 Human BAFF/CD257 in the samples is then determined by comparing the OD of the samples to the standard curve.

標(biāo)準(zhǔn)曲線

Concentration (pg/mL)	OD	Corrected OD
5000.00	1.970	1.865
2500.00	1.599	1.494
1250.00	1.074	0.969
625.00	0.803	0.698
312.50	0.537	0.432
156.25	0.314	0.209
78.13	0.223	0.118
0.00	0.105	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 BAFF/CD257 and the recovery rates were calculated by comparing the measured value to the expected amount of BAFF/CD257 in samples.

Matrix	Recovery range	Average
serum(n=5)	93-99%	96%
EDTA plasma(n=5)	86-126%	106%
Heparin plasma(n=5)	90-110%	100%

線性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of BAFF/CD257 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.