48T
$299.00
96T
$399.00
Species:
Human
Alternative Name:
Angiotensin-2
Uniport ID:
P01019(34~41aa)
Assay Type:
Competitive
unit:
pg/mL
Standard:
2000pg/mL
Sensitivity:
18.75 pg/mL
Detection Range:
31.25-2000pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma, Tissue homogenate and Other biological samples;Sample Volume=50μL
Research:
Endocrinology;Reproductive science;Hormone metabolism;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Human Ang-Ⅱ. During the reaction, Human Ang-Ⅱ in the sample or standard competes with a fixed amount of Human Ang-Ⅱ on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Human Ang-Ⅱ. Excess conjugate and unbound sample or standard are washed away, and Avidin-Horseradish Peroxidase (HRP) conjugate are added to each micro plate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of stop solution and the color turns from blue to yellow. The optical density (OD) is measured spectrophotometrically at a wavelength of 450 nm ± 2 nm. The concentration of Human Ang-Ⅱ in tested samples can be calculated by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 2000 | 0.219 | |
| 1000 | 0.355 | |
| 500 | 0.57 | |
| 250 | 0.904 | |
| 125 | 1.332 | |
| 62.5 | 1.724 | |
| 31.25 | 2.1 | |
| 0 | 2.54 |
Intra-assay Precision (Precision within an assay): 3 samples with low, mid range and high level were tested 20 times on one plate, respectively.
Inter-assay Precision (Precision between assays): 3 samples with low, mid range and high level were tested on 3 different plates, 20 replicates in each plate, respectively.
| Intra-assay Precision | Inter-assay Precision | |||||
|---|---|---|---|---|---|---|
| Sample | 1 | 2 | 3 | 1 | 2 | 3 |
| n | 20 | 20 | 20 | 20 | 20 | 20 |
| Mean(ng/mL) | 118.05 | 351.41 | 503.65 | 108.44 | 449.24 | 773.74 |
| Standard deviation | 0.08 | 15 | 43.33 | 3.29 | 15.57 | 31.28 |
| C V (%) | 6.72 | 6.45 | 7.35 | 7.71 | 7.22 | 3.69 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 91-105 | 98 |
| EDTA plasma (n=8) | 81-95 | 88 |
| Cell culture media (n=8) | 85-97 | 91 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 85-94 | 85-102 | 95-102 |
| Average (%) | 86 | 95 | 96 | |
| 1:4 | Range (%) | 87-103 | 85-102 | 80-97 |
| Average (%) | 99 | 90 | 84 | |
| 1:8 | Range (%) | 97-105 | 80-92 | 96-104 |
| Average (%) | 101 | 91 | 101 | |
| 1:16 | Range (%) | 80-90 | 87-98 | 85-93 |
| Average (%) | 89 | 95 | 90 |