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Rat DHEA-S(Dehydroepiandrosterone Sulfate) ELISA Kit
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Product No

FY-ER3513

Sample Type

Serum, Plasma, Tissue homogenate and Other biological samples

Assay Time

1.5H

Price($)

280 400

Size

48T 96T

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Product Details
Product Name in English:
Rat DHEA-S(Dehydroepiandrosterone Sulfate) ELISA Kit
Species:
Rat
Alternative Name:
Androstenolone sulfate; Prasterone sulfate; Androst-5-en-3β-ol-17-one 3β-sulfate
Assay Type:
Competitive
Standard:
2000pg/mL
Sensitivity:
18.75 pg/mL
Detection Range:
31.25-2000pg/mL
Assay Time:
1.5H
Sample Type:
Serum, Plasma, Tissue homogenate and Other biological samples
Research:
Endocrinology;Hepatology;Hormone metabolism;
Test Principle:
This assay employs the competitive inhibition enzyme immunoassay technique. The microtiter plate provided in this kit has been pre-coated with DHEA-S protein. Standards or samples are added to the appropriate microtiter plate wells then with a biotin-conjugated antibody specific to DHEA-S. 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 stop solution and the color change is measured spectrophotometrically at a wavelength of 450nm ± 10nm. The concentration of DHEA-S in the samples is then determined by comparing the OD of the samples to the standard curve.
Technical Data
As the OD values of the standard curve may vary according to the conditions of the actual assay performance (e.g. operator, pipetting technique, washing technique or temperature effects), the operator should establish a standard curve for each test. Typical standard curve and data is provided below for reference only.
Concentration OD1 OD2 Average OD Corrected
2000 0.197 0.198 0.198
1000 0.333 0.334 0.334
500 0.548 0.549 0.549
250 0.882 0.884 0.883
125 1.31 1.311 1.311
62.5 1.702 1.71 1.706
31.25 2.078 2.082 2.08
0 2.518 2.537 2.528
Linear
Samples were spiked with high concentrations of target proteins and diluted with Reference Standard & Sample Diluent to produce samples with values within the range of the assay.
Serum (n=5) EDTA plasma (n=5) Cell culture media (n=5)
1:2 Range (%) 95-104 86-95 85-94
Average (%) 99 93 87
1:4 Range (%) 82-94 91-106 87-101
Average (%) 91 94 90
1:8 Range (%) 86-96 87-100 89-99
Average (%) 94 93 98
1:16 Range (%) 81-97 95-101 85-95
Average (%) 89 96 85
Precision
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.
Item Intra-assay Precision Intra-assay Precision
Sample 3 3
Replicate 9 18
CV(%) 5 8
Rate of recovery
The recovery of spiked at three different levels in samples throughout the range of the assay was evaluated in various matrices.
Sample Type Range(%) Average Recovery(%)
Serum (n=8) 88-102 95
EDTA plasma (n=8) 80-92 85
Cell culture media (n=8) 80-97 88
Assay Procedures
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