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Work with LifeSpan to design a custom immunohistochemistry to address your specific biological question. Outsource the entire localization process without having to worry about finding and characterizing target specific antibodies, sourcing and validating difficult-to-find tissues, and having the ability to interpret the resulting immunostaining in relation to complex human pathologies.

Test your therapeutic antibodies in immunohistochemistry against a broad panel of normal frozen human tissue types in order to determine potential unintended binding. Our non-GLP TCR services are designed on the FDA recommendation outlined in their "Points to Consider in the Manufacture and Testing of Monoclonal Antibody Products for Human Use".

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Human DHEAS / DHEA Sulfate ELISA Kit (Competitive EIA) - LS-F39260
Catalog
Size
Price
LS-F39260-1
1 plate
$550

Popular DHEAS / DHEA Sulfate Elisa Kits


Product Description

LS-F39260 is a 96-well enzyme-linked immunosorbent assay (ELISA) for the Quantitative detection of Human DHEAS / DHEA Sulfate in samples of Plasma, Serum and Tissue Homogenates. It is based upon a Competitive EIA assay principle and can be used to detect levels of DHEAS / DHEA Sulfate as low as 9.375 nanograms per millilter.

Specifications

Type
Competitive EIA (enzyme immunoassay) kit
Target
DHEAS / DHEA Sulfate
Reactivity
Human
Manual
Intended Sample Types
Plasma, Serum, Tissue Homogenates
Format
96-Well Strip Plate
Detection
Colorimetric - 450nm (TMB)
Measurement
Quantitative
Detection Range
15.625 - 1000 ng/ml
Sensitivity
9.375 ng/ml
Precision
Intra-Assay: CV<8% Inter-Assay: CV<10%
Storage
Store at 4°C. Stable for 6 months.
Quality Assurance
Due to their limited shelf life, LSBio ELISA kits are not typically stocked as finished goods. Upon receipt of an order each kit is assembled and tested to ensure that it meets specifications before shipping. Minor changes may occur to the Range, Sensitivity, and Precision. In the event of a significant change the order would be confirmed with the customer before shipping ELISA kit lot numbers reflect the date of final assembly and testing for each specific kit rather than a bulk manufactured lot. All kits are tested to confirm that they fall within their defined Inter- and Intra- assay coefficient of variation.
Kit Components
  • Coated 96-well Strip Plate
  • Detection Antibody Diluent
  • Biotinylated Detection Antibody (100x)
  • HRP-Streptavidin Conjugate (100x)
  • HRP Streptavidin Conjugate Diluent
  • Sample Diluent
  • Standard (Lyophilized)
  • TMB Substrate
  • Stop Solution
  • Wash Buffer (25x)
  • Adhesive Plate Sealers
Background
This ELISA kit uses Competitive-ELISA as the method. The microtiter plate provided in this kit has been pre-coated with DHEA-S. During the reaction, DHEA-S in the sample or standard competes with a fixed amount of DHEA-S on the solid phase supporter for sites on the Biotinylated Detection Antibody specific to DHEA-S. Excess conjugate and unbound sample or standard are washed from the plate, and HRP-Streptavidin(SABC) is added to each microplate well and incubated. Then a TMB substrate solution is added to each well. The enzyme-substrate reaction is terminated by the addition of a sulphuric acid solution and the color change is measured spectrophotometrically at a wavelength of 450 nm. The concentration of DHEA-S in the samples is then determined by comparing the O.D. of the samples to the standard curve.
Restrictions
For research use only.
About DHEAS / DHEA Sulfate
Dehydroepiandrosterone sulfate is produced by the addition of a sulfate group, 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. In the zona reticularis layer of the adrenal cortex, DHEA-sulfate is generated by SULT2A1. This layer of the adrenal cortex is thought to be the primary source of serum DHEA-sulfate.

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Competition ELISA Platform Overview
Competition ELISA Platform Overview

Competition ELISA Platform Overview
Competition ELISA Platform Overview

Competition ELISA Platform Overview
Competition ELISA Platform Overview

Competition ELISA Platform Overview
Competition ELISA Platform Overview

Requested From: United States
Date Requested: 10/21/2018

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