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一步法大鼠胰島素樣生長因子結(jié)合蛋白7(IGFBP7)酶聯(lián)免疫吸附檢測試劑盒

ELK064ES

規(guī)格：	價格：
48T	￥2240.00
96T	￥3200.00

下載說明 ①

Overview

Product name:	EasyStep Rat IGFBP7(Insulin Like Growth Factor Binding Protein 7) ELISA Kit
Reactivity:	Rat
Alternative Names:	FSTL2; IGFBP-7v; MAC25; PSF; TAF; IGFBP-rP1; MAC25 protein; Prostacyclin-stimulating factor; PGI2-stimulating factor; Tumor-derived adhesion factor
Assay Type:	Sandwich
Sensitivity:	7 ng/mL
Standard:	1000 ng/mL
Detection Range:	15.63-1000 ng/mL
Sample Type:	Serum, plasma
Assay Length:	1.5h
Research Area:	Metabolic pathway;
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 Rat IGFBP7, and the Rat IGFBP7 standard plate wells that pre-coated using protein-related techniques are provided separately. Standard/Sample Diluent Buffer or samples are added to the appropriate microtiter plate wells ,then added a HRP-conjugated antibody specific to Rat IGFBP7. After TMB substrate solution is added, only those wells that contain Rat IGFBP7 and HRP-conjugated antibody 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 Rat IGFBP7 in the samples is then determined by comparing the OD of the samples to the standard curve.

標準曲線

Concentration (ng/mL)	OD	Corrected OD
1000.00	2.179	2.085
500.00	1.612	1.518
250.00	1.247	1.153
125.00	0.849	0.755
62.50	0.594	0.500
31.25	0.387	0.293
15.63	0.197	0.103
0.00	0.094	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 IGFBP7 and the recovery rates were calculated by comparing the measured value to the expected amount of IGFBP7 in samples.

Matrix	Recovery range	Average
serum(n=5)	90-105%	97%
EDTA plasma(n=5)	85-97%	91%
Heparin plasma(n=5)	81-95%	88%

線性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of IGFBP7 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.