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人內(nèi)皮素1(ET-1)微量上樣酶聯(lián)免疫吸附檢測試劑盒

一鍵復制產(chǎn)品信息

ELK2444MS

規(guī)格：	價格：
48T	￥1960.00
96T	￥2800.00
96T*5	￥11900.00

下載說明 ①

Overview

Product name:	Human ET-1(Endothelin1) Microsample ELISA Kit
Reactivity:	Human
Alternative Names:	ET1; PPET1; Preproendothelin-1; Big endothelin-1; EDN1
Assay Type:	Sandwich
Sensitivity:	2.69 pg/mL
Standard:	500 pg/mL
Detection Range:	7.82-500 pg/mL
Sample Type:	serum, plasma, tissue homogenates, cell lysates, cell culture supernates and other biological fluids
Assay Length:	3.5h
Research Area:	Endocrinology;Cardiovascular biology;
Uniprot ID:	P05305
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 ET-1. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Human ET-1. 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 ET-1, 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 ET-1 in the samples is then determined by comparing the OD of the samples to the standard curve.

標準曲線

Concentration (pg/mL)	OD	Corrected OD
500.00	2.057	1.951
250.00	1.474	1.368
125.00	1.004	0.898
62.50	0.765	0.659
31.25	0.517	0.411
15.63	0.335	0.229
7.81	0.209	0.103
0.00	0.106	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 ET-1 and the recovery rates were calculated by comparing the measured value to the expected amount of ET-1 in samples.

Matrix	Recovery range	Average
serum(n=5)	82-112%	97%
EDTA plasma(n=5)	88-116%	102%
Heparin plasma(n=5)	84-109%	97%

線性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of ET-1 and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.