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人殺菌性/通透性增加蛋白(BPI)酶聯(lián)免疫吸附檢測試劑盒

ELK1819

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

下載說明 ①

Overview

Product name:	Human BPI(Bactericidal/Permeability Increasing Protein) ELISA Kit
Reactivity:	Human
Alternative Names:	CAP 57
Assay Type:	Sandwich
Sensitivity:	5.3 pg/mL
Standard:	800 pg/mL
Detection Range:	12.5-800 pg/mL
Sample Type:	Serum, plasma, tissue homogenates and other biological fluids
Assay Length:	3.5h
Research Area:	Infection immunity;Dermatology;
Uniprot ID:	P17213
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 BPI. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human BPI. 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 BPI, 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 BPI 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
800.00	2.154	2.066
400.00	1.694	1.606
200.00	1.115	1.027
100.00	0.876	0.788
50.00	0.516	0.428
25.00	0.319	0.231
12.50	0.202	0.114
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 BPI and the recovery rates were calculated by comparing the measured value to the expected amount of BPI in samples.

Matrix	Recovery range	Average
serum(n=5)	92-105%	98%
EDTA plasma(n=5)	83-95%	89%
Heparin plasma(n=5)	87-99%	93%

線性

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