48T
$299.00
96T
$399.00
Species:
Rat
Alternative Name:
PACAP27, Pituitary adenylate cyclase-activating polypeptide 27
Assay Type:
Competitive
unit:
pg/mL
Standard:
500pg/mL
Sensitivity:
4.69 pg/mL
Detection Range:
7.82-500pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma, Tissue homogenate and Other biological samples;Sample Volume=50μL
Research:
CD & Adhesion molecule;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Rat PACAP-27. During the reaction, Rat PACAP-27 in the sample or standard competes with a fixed amount of Rat PACAP-27 on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Rat PACAP-27. 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 PACAP-27 in tested samples can be calculated by comparing the OD of the samples to the standard curve.
| pg/mL | OD | Corrected |
|---|---|---|
| 500 | 0.176 | |
| 250 | 0.314 | |
| 125 | 0.533 | |
| 62.5 | 0.864 | |
| 31.25 | 1.285 | |
| 15.63 | 1.742 | |
| 7.82 | 2.051 | |
| 0 | 2.531 |
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) | 7.59 | 108.58 | 229.25 | 27.02 | 76.13 | 239.92 |
| Standard deviation | 1.04 | 5.4 | 7.99 | 0.94 | 3.35 | 10.21 |
| C V (%) | 4.95 | 2.55 | 2.89 | 3.38 | 3.06 | 7.17 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 95-107 | 101 |
| EDTA plasma (n=8) | 81-95 | 88 |
| Cell culture media (n=8) | 88-96 | 92 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 88-104 | 92-104 | 82-93 |
| Average (%) | 90 | 99 | 87 | |
| 1:4 | Range (%) | 93-102 | 92-104 | 80-92 |
| Average (%) | 100 | 102 | 80 | |
| 1:8 | Range (%) | 82-97 | 93-99 | 85-96 |
| Average (%) | 85 | 95 | 94 | |
| 1:16 | Range (%) | 92-101 | 87-95 | 93-102 |
| Average (%) | 98 | 103 | 98 |