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Invitrogen
Dehydroepiandrosterone Sulfate (DHEA-S) Competitive ELISA Kit
Product Specifications
Analytical sensitivity
90.9 pg/mL
Assay range
96-60,000 pg/mL
Sample type/volume
Fecal Extract
50 µL
Plasma
1 µL
Saliva
25 µL
Serum
1 µL
Supernatant
50 µL
Urine
25 µL
Hands-on time
1 hr 20 min
Time-to-result
2 hr 30 min
Homogenous (no wash)
No
Interassay CV
8.4%
Intraassay CV
7%
Instrument
Colorimetric Microplate Reader
Product size
96 Tests
Contents
Pre-coated 96 well plate
Standard
Assay Diluent concentrate
HRP-Conjugated Detection Antibody
Wash Buffer
Chromogen
Stop Solution
Adhesive Plate Covers
Standard
Assay Diluent concentrate
HRP-Conjugated Detection Antibody
Wash Buffer
Chromogen
Stop Solution
Adhesive Plate Covers
Shipping conditions
Wet ice
Storage
-20°C
Protein name
DHEA-S
Species (tested)
Chemical
Assay kit format
Competitive ELISA
Detector antibody conjugate
HRP
Label or dye
HRP
About This Kit
The Dehydroepiandrosterone Sulfate (DHEA-S) ELISA quantitates DHEA-Se in serum, plasma, urine, saliva, dried fecal extracts or cell culture medium.
Principle of the method
The Dehydroepiandrosterone sulfate (DHEA-S) Competitive ELISA research-use-only kit uses a specifically generated antibody to measure Dehydroepiandrosterone sulfate (DHEA-S) in serum, plasma, urine, and saliva samples, and in fecal extracts. The kit will also quantitatively measure DHEA-S present in tissue culture media samples. A DHEA-S standard is provided to generate a standard curve for the assay and all samples should be read off the standard curve. Standards or diluted samples are pipetted into a clear microtiter plate coated with an antibody to capture sheep antibodies. A DHEA-S-peroxidase conjugate is added to the standards and samples in the wells. The binding reaction is initiated by the addition of a polyclonal antibody to DHEA-S to each well. After a 2-hour incubation the plate is washed and substrate is added. The substrate reacts with the bound DHEA-S-peroxidase conjugate. After a short incubation, the reaction is stopped and the intensity of the generated color is detected in a microtiter plate reader capable of measuring at 450 nm.
Rigorous validation
Each manufactured lot of this ELISA kit is quality tested for criteria such as sensitivity, specificity, precision, and lot-to-lot consistency. See manual for more information on validation.
Target information
Dehydroepiandrosterone sulfate (DHEA-S) is the major C19 steroid secreted by the adrenal cortex and a precursor in testosterone and estrogen biosynthesis. DHEA-S is identical across all species and so this kit should measure DHEA-S from all sources. It is produced by the addition of a sulfate group to dehydroepiandrosterone (DHEA), catalyzed by the sulfotransferase enzymes, SULT1A1 and SULT1E1, which also produce estrone sulfate from estrone. DHEA sulfate can also be back-converted to DHEA through the action of steroid sulfatase.
For Research Use Only. Not for use in diagnostic procedures. Not for resale without express authorization.
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Bioinformatics
Protein Aliases : Dehydroepiandrosterone sulfate, DHEA sulfate, DHEAS
Performance Guarantee
If an Invitrogen™ antibody doesn't perform as described on our website or datasheet,we'll replace the product at no cost to you, or provide you with a credit for a future purchase.*
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