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人組織因子通道抑制因子(TFPI)酶聯(lián)免疫吸附檢測(cè)試劑盒

ELK1041

規(guī)格：	價(jià)格：
48T	￥1680.00
96T	￥2400.00

下載說明 ①

Overview

Product name:	Human TFPI(Tissue Factor Pathway Inhibitor) ELISA Kit
Reactivity:	Human
Alternative Names:	TFI; EPI; LACI; TFPI1; Lipoprotein-Associated Coagulation Inhibitor; Extrinsic pathway inhibitor
Assay Type:	Sandwich
Sensitivity:	0.64 ng/mL
Standard:	100 ng/mL
Detection Range:	1.57-100 ng/mL
Sample Type:	plasma, urine, tissue homogenates, cell culture supernates and other biological fluids
Assay Length:	3.5h
Research Area:	Metabolic pathway;Hematology;
Uniprot ID:	P10646
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 TFPI. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human TFPI. 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 TFPI, 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 TFPI 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
100.00	2.052	1.976
50.00	1.263	1.187
25.00	0.767	0.691
12.50	0.426	0.350
6.25	0.244	0.168
3.13	0.169	0.093
1.57	0.114	0.038
0.00	0.076	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 TFPI and the recovery rates were calculated by comparing the measured value to the expected amount of TFPI in samples.

Matrix	Recovery range	Average
serum(n=5)	85-97%	91%
EDTA plasma(n=5)	96-107%	101%
Heparin plasma(n=5)	90-105%	97%

線性

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