CS0790

Sigma

 

Antioxidant Assay Kit

sufficient for 200 tests


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2,2′-Azino-bis(3-ethylbenzothiazoline-6-sulfonic acid) diammonium salt
tablet, 10 mg substrate per tablet

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Description

ApplicationThe kit provides all of the reagents required for an efficient measurement of the total antioxidant capacity of plasma, serum, urine, saliva, cells, and tissue lysates. It was tested on A431 and CHO cell lysates; rat brain, liver, and kidney lysates; human plasma, serum, urine, and saliva.
General descriptionThe antioxidant assay is based on the formation of a ferryl myoglobin radical from myoglobin and hydrogen peroxide, which oxidizes the ABTS (2,2′-azino-bis(3-ethylbenzthiazoline-6-sulfonic acid)) to produce a radical cation ABTS+, a soluble green color chromogen that can be determined at 405 nm. In the presence of antioxidants the radical cation is suppressed to an extent dependent on the activity of the antioxidant and the color intensity is decreased proportionally. Trolox, a water-soluble vitamin E analogue, serves as a standard or a control antioxidant.
Legal InformationTrolox is a trademark of Hoffman-LaRoche & Co. AG

Properties

usage sufficient for 200 tests
shipped inwet ice
storage temp.2-8°C

Safety

Hazard CodesXi
Risk Statements36/37/38
Safety Statements26

Components

  Kit component also available separately
Description
Hydrogen Peroxide, 3% solution 1mL
Myoglobin from horse heart 2X1mg
(±)-6-Hydroxy-2,5,7,8-tetramethylchromane-2-carboxylic acid (Trolox®) 2X1mg
ABTS, 10 mg tablets 4tabs
Phosphate-Citrate Buffer, pH 5 4tabs


  Kit component only
Description
Assay Buffer 10X 30mL
Stop Solution 20mL