48T
$299.00
96T
$399.00
Species:
Human
Alternative Name:
b-EP
Uniport ID:
P01189(237~267aa)
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:
Metabolic pathway;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Human β-EP. During the reaction, Human β-EP in the sample or standard competes with a fixed amount of Human β-EP on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Human 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 Human 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) | 36.26 | 225.01 | 268.32 | 51.18 | 211.75 | 527.49 |
| Standard deviation | 2.5 | 10.31 | 18.6 | 0.08 | 9.38 | 17.66 |
| C V (%) | 2.9 | 6.85 | 6.42 | 7.99 | 5.38 | 5.81 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 82-94 | 88 |
| EDTA plasma (n=8) | 82-98 | 90 |
| Cell culture media (n=8) | 80-97 | 88 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 83-94 | 82-94 | 91-99 |
| Average (%) | 86 | 82 | 96 | |
| 1:4 | Range (%) | 85-96 | 82-94 | 80-92 |
| Average (%) | 85 | 89 | 80 | |
| 1:8 | Range (%) | 92-103 | 85-96 | 86-102 |
| Average (%) | 101 | 94 | 89 | |
| 1:16 | Range (%) | 86-97 | 80-90 | 87-103 |
| Average (%) | 93 | 88 | 91 |