48T
$299.00
96T
$399.00
Species:
Mouse
Alternative Name:
Androstenolone sulfate; Prasterone sulfate; Androst-5-en-3β-ol-17-one 3β-sulfate
Assay Type:
Competitive
unit:
ng/mL
Standard:
400ng/mL
Sensitivity:
3.75 ng/mL
Detection Range:
6.25-400ng/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma, Tissue homogenate and Other biological samples;Sample Volume=50μL
Research:
Metabolic pathway;Endocrinology;Cardiovascular biology;Neuro science;Gastroenterology;
Test Principle:
This ELISA kit uses the Competitive-ELISA principle. The micro ELISA plate provided in this kit has been pre-coated with Mouse DHEA-S. During the reaction, Mouse DHEA-S in the sample or standard competes with a fixed amount of Mouse DHEA-S on the solid phase supporter for sites on the Biotinylated Detection Ab specific to Mouse DHEA-S. 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 Mouse DHEA-S in tested samples can be calculated by comparing the OD of the samples to the standard curve.
| ng/mL | OD | Corrected |
|---|---|---|
| 400 | 0.241 | |
| 200 | 0.404 | |
| 100 | 0.644 | |
| 50 | 0.961 | |
| 25 | 1.254 | |
| 12.5 | 1.574 | |
| 6.25 | 1.844 | |
| 0 | 2.666 |
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) | 23.29 | 60.99 | 199.28 | 16.41 | 73.42 | 187.32 |
| Standard deviation | 0.62 | 4.67 | 8.08 | 0.08 | 2.67 | 7.61 |
| C V (%) | 6.08 | 6.71 | 5.56 | 6.35 | 7.25 | 6.23 |
| Sample Type | Range(%) | Average Recovery(%) |
|---|---|---|
| Serum (n=8) | 92-107 | 99 |
| EDTA plasma (n=8) | 93-107 | 100 |
| Cell culture media (n=8) | 87-99 | 93 |
| Serum (n=5) | EDTA plasma (n=5) | Cell culture media (n=5) | ||
|---|---|---|---|---|
| 1:2 | Range (%) | 86-96 | 86-94 | 92-105 |
| Average (%) | 94 | 90 | 97 | |
| 1:4 | Range (%) | 85-97 | 86-94 | 95-103 |
| Average (%) | 86 | 89 | 103 | |
| 1:8 | Range (%) | 89-101 | 93-102 | 87-98 |
| Average (%) | 90 | 98 | 95 | |
| 1:16 | Range (%) | 85-97 | 87-96 | 85-92 |
| Average (%) | 86 | 94 | 90 |