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人淋巴細(xì)胞功能關(guān)聯(lián)抗原1α(LFA1a)酶聯(lián)免疫吸附檢測(cè)試劑盒

ELK1774

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

下載說(shuō)明 ①

Overview

Product name:	Human LFA1a(Lymphocyte Function Associated Antigen 1 Alpha) ELISA Kit
Reactivity:	Human
Alternative Names:	CD11a; ITG-AL; LFA-1; LFA1-A; ITGAL; Integrin,Alpha L; CD11 antigen-like family member A; Leukocyte function-associated molecule 1 alpha chain
Assay Type:	Sandwich
Sensitivity:	0.055 ng/mL
Standard:	10 ng/mL
Detection Range:	0.16-10 ng/mL
Sample Type:	tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Assay Length:	3.5h
Research Area:	Signal transduction;CD & Adhesion molecule;Tumor immunity;Infection immunity;
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 LFA1a. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human LFA1a. 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 LFA1a, 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 LFA1a in the samples is then determined by comparing the OD of the samples to the standard curve.

標(biāo)準(zhǔn)曲線

Concentration (ng/mL)	OD	Corrected OD
10.00	2.126	2.038
5.00	1.563	1.475
2.50	1.034	0.946
1.25	0.875	0.787
0.63	0.515	0.427
0.32	0.332	0.244
0.16	0.216	0.128
0.00	0.088	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 LFA1a and the recovery rates were calculated by comparing the measured value to the expected amount of LFA1a in samples.

Matrix	Recovery range	Average
serum(n=5)	88-106%	97%
EDTA plasma(n=5)	87-99%	93%
Heparin plasma(n=5)	82-97%	90%

線性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of LFA1a and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.