48T
$299.00
96T
$399.00
Species:
Rat
Alternative Name:
b-EP
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:
CD & Adhesion molecule;Tumor immunity;Infection immunity;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Rat β-EP. During the reaction, Rat β-EP in the sample or standard competes with a fixed amount of Rat β-EP on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Rat β-EP. 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 β-EP in tested samples can be calculated by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 1000 | 0.285 | |
| 500 | 0.385 | |
| 250 | 0.579 | |
| 125 | 0.84 | |
| 62.5 | 1.135 | |
| 31.25 | 1.53 | |
| 15.63 | 1.844 | |
| 0 | 2.508 |
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) | 49.38 | 200.65 | 470.38 | 15.02 | 225.19 | 407.05 |
| Standard deviation | 0.85 | 8.36 | 18.85 | 3 | 7.62 | 22.73 |
| C V (%) | 3.51 | 6.59 | 3.94 | 3.79 | 3.66 | 5.31 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 95-107 | 101 |
| EDTA plasma (n=8) | 90-105 | 97 |
| Cell culture media (n=8) | 82-95 | 88 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 85-97 | 95-102 | 95-107 |
| Average (%) | 93 | 96 | 98 | |
| 1:4 | Range (%) | 87-96 | 95-102 | 87-97 |
| Average (%) | 90 | 96 | 90 | |
| 1:8 | Range (%) | 85-96 | 96-104 | 86-92 |
| Average (%) | 87 | 99 | 89 | |
| 1:16 | Range (%) | 85-95 | 87-98 | 89-103 |
| Average (%) | 92 | 96 | 102 |