Species:
Universal
Alternative Name:
prostaglandin I2
Assay Type:
Competitive
unit:
pg/mL
Standard:
200 pg/mL
Sensitivity:
0.93 pg/mL
Detection Range:
3.13-200 pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma and Other biological fluids
Research:
Cardiovascular biology;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 PGI2. Standards or samples are added to the appropriate micro ELISA plate wells then with a biotin-conjugated antibody specific to PGI2. 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 PGI2 in the samples is then determined by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 200 | 0.184 | |
| 100 | 0.32 | |
| 50 | 0.535 | |
| 25 | 0.869 | |
| 12.5 | 1.297 | |
| 6.25 | 1.689 | |
| 3.13 | 2.065 | |
| 0 | 2.505 |
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) | 3.94 | 8.4 | 56.18 | 4.1 | 6.29 | 69.93 |
| Standard deviation | 0.42 | 0.93 | 2.9 | 0.52 | 1.15 | 3.61 |
| C V (%) | 3.45 | 6.31 | 3.48 | 5.18 | 6.77 | 4.98 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 80-92 | 85 |
| EDTA plasma (n=8) | 87-99 | 93 |
| Cell culture media (n=8) | 85-99 | 92 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 88-97 | 86-97 | 96-105 |
| Average (%) | 97 | 87 | 97 | |
| 1:4 | Range (%) | 91-105 | 86-97 | 89-98 |
| Average (%) | 97 | 96 | 95 | |
| 1:8 | Range (%) | 87-98 | 83-96 | 81-94 |
| Average (%) | 97 | 92 | 94 | |
| 1:16 | Range (%) | 95-105 | 91-103 | 96-105 |
| Average (%) | 103 | 97 | 100 |