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人食欲素B(OXB)酶联免疫吸附检测试剂盒

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ELK0143

规格：	价格：
48T	￥1960.00
96T	￥2800.00

下载说明 ①

Overview

Product name:	Human OXB(Orexin B) ELISA Kit
Reactivity:	Human
Alternative Names:	Hypocretin-2
Assay Type:	Competitive Inhibition
Sensitivity:	0.11 ng/mL
Standard:	25 ng/mL
Detection Range:	0.4-25 ng/mL
Sample type:	serum, plasma and other biological fluids
Assay length:	2.5h
Research Area:	Neuro science;
Test principle:	This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Human OXB. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human OXB. Next, Avidin conjugated to Horseradish Peroxidase (HRP) is added to each microplate well and incubated. After TMB substrate solution is added. 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 OXB in the samples is then determined by comparing the OD of the samples to the standard curve.

标准曲线

Concentration (ng/mL)	OD	Corrected OD
25.00	0.189
12.50	0.397
6.25	0.583
3.13	0.833
1.57	1.157
0.79	1.583
0.40	1.715
0.00	2.211

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 OXB and the recovery rates were calculated by comparing the measured value to the expected amount of OXB in samples.

Matrix	Recovery range	Average
serum(n=5)	92-105%	98%
EDTA plasma(n=5)	85-97%	91%
Heparin plasma(n=5)	78-92%	85%

线性

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