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Amplite® Fluorimetric Glutathione GSH/GSSG Ratio Assay Kit
Green Fluorescence
When cells are exposed to increased levels of oxidative stress, GSSG will accumulate and the ratio of GSH to GSSG will decrease. The glutathione redutase recycles GSSG to GSH with simultaneous oxidation of b-nicotinamide adenine dinuclecotide phosphate. The monitoring of GSH/GSSG ratio and the quantification of GSSG in biological samples are essential for evaluating the redox and detoxification status of cells and tissues in relation to the protective role of glutathione against oxidative and free-radical-mediated cell injury. There are a few reagents or assay kits available for the quantitation of thiols in biological systems. However, all the commercial kits either lack sensitivity or have tedious protocols. Our Amplite® Fluorimetric GSH/GSSG Ratio Kit provides an ultrasensitive assay to quantitate GSH in the sample. The kit uses a proprietary non-fluorescent dye that becomes strongly fluorescent upon reacting with thiol. The kit provides a sensitive, one-step fluorimetric method to detect as little as 1 picomole of cysteine or GSH in a 100 µL assay volume. The assay can be performed in a convenient 96-well or 384-well microtiter-plate format and easily adapted to automation without a separation step. Its signal can be easily read by a fluorescence microplate reader.
GSH and GSSG dose responses were measured with Amplite® Fluorimetric Glutathione GSH/GSSG Ratio Assay Kit (Cat#10056). Blue: GSH dose responses (0.156 to 10 µM); Red: GSSG dose responses (0.078 to 5 µM GSSG which is equivalent to 0.156 to 10 µM Total GSH).
GSH and GSSG dose responses were measured with Amplite® Fluorimetric Glutathione GSH/GSSG Ratio Assay Kit (Cat#10056). Blue: GSH dose responses (0.156 to 10 µM); Red: GSSG dose responses (0.078 to 5 µM GSSG which is equivalent to 0.156 to 10 µM Total GSH).
protocol
Protocol
sds
SDS
COA
CatalogSize
Price
Quantity
10056200 Tests
Price
 
Storage, safety and handling
H-phraseH303, H313, H333
Hazard symbolXN
Intended useResearch Use Only (RUO)
R-phraseR20, R21, R22
UNSPSC12171501
Instrument settings
Fluorescence microplate reader
Excitation490 nm
Emission520 nm
Cutoff510 nm
Recommended plateSolid black
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Page updated on October 3, 2025