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大鼠促生长激素释放激素(GHRH)酶联免疫吸附检测试剂盒
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ELK2413
规格: 价格:
48T ¥1960.00
96T ¥2800.00
96T*5 ¥11900.00

Overview

Product name: Rat GHRH(Growth Hormone Releasing Hormone) ELISA Kit
Reactivity: Rat
Alternative Names: GRF; GHRF; Somatocrinin; Growth-Hormone-Releasing Factor; Sermorelin; Somatoliberin
Assay Type: Competitive Inhibition
Sensitivity: 4.64 pg/mL
Standard: 1000 pg/mL
Detection Range: 15.63-1000 pg/mL
Sample Type: serum, plasma, cell lysates, cell culture supernates and other biological fluids
Assay Length: 2h
Research Area: Endocrinology;Hormone metabolism;
Uniprot ID: P09916
Test principle: This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with Rat GHRH. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to Rat GHRH. 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 Rat GHRH in the samples is then determined by comparing the OD of the samples to the standard curve.

标准曲线

Concentration (pg/mL) OD Corrected OD
1000.00 0.191
500.00 0.397
250.00 0.611
125.00 0.812
62.50 1.157
31.25 1.583
15.63 1.789
0.00 2.123

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 GHRH and the recovery rates were calculated by comparing the measured value to the expected amount of GHRH in samples.
Matrix Recovery range Average
serum(n=5) 82-98% 90%
EDTA plasma(n=5) 80-97% 88%
Heparin plasma(n=5) 82-94% 88%

线性

The linearity of the kit was assayed by testing samples spiked with appropriate concentration of GHRH and their serial dilutions. The results were demonstrated by the percentage of calculated concentration to the expected.
Matrix 1:2 1:4 1:8 1:16
serum(n=5) 85-94% 87-96% 89-101% 82-90%
EDTA plasma(n=5) 85-92% 82-96% 87-103% 95-102%
Heparin plasma(n=5) 89-98% 84-98% 95-102% 88-106%
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