48T
$299.00
96T
$399.00
Species:
Rat
Alternative Name:
Angiotensin-2
Assay Type:
Competitive
unit:
pg/mL
Standard:
1000pg/mL
Sensitivity:
9.38 pg/mL
Detection Range:
15.63-1000pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma, Tissue homogenate and Other biological samples;Sample Volume=50μL
Research:
Apoptosis;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Rat Ang-Ⅱ. During the reaction, Rat Ang-Ⅱ in the sample or standard competes with a fixed amount of Rat Ang-Ⅱ on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Rat 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 Rat Ang-Ⅱ in tested samples can be calculated by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 1000 | 0.27 | |
| 500 | 0.37 | |
| 250 | 0.564 | |
| 125 | 0.825 | |
| 62.5 | 1.12 | |
| 31.25 | 1.515 | |
| 15.63 | 1.829 | |
| 0 | 2.493 |
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) | 54.64 | 172.95 | 253.57 | 6.9 | 261.46 | 503.73 |
| Standard deviation | 1.53 | 8.25 | 23.18 | 1.81 | 7.02 | 24.68 |
| C V (%) | 6.87 | 6 | 5.55 | 3.5 | 4.64 | 6.86 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 88-99 | 93 |
| EDTA plasma (n=8) | 80-97 | 88 |
| Cell culture media (n=8) | 82-95 | 88 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 95-104 | 86-93 | 89-94 |
| Average (%) | 100 | 87 | 93 | |
| 1:4 | Range (%) | 93-102 | 86-93 | 91-99 |
| Average (%) | 101 | 89 | 96 | |
| 1:8 | Range (%) | 80-94 | 91-105 | 83-89 |
| Average (%) | 91 | 96 | 89 | |
| 1:16 | Range (%) | 87-98 | 87-98 | 88-104 |
| Average (%) | 90 | 90 | 94 |