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Xanthine Oxidase (XOD) Activity Fluorometric Assay Kit

  • Cat.No.:E-BC-F019

  • Detection instrument: Fluorescence microplate reader (Ex/Em=535 nm/587 nm)

To Purchase E-BC-F019

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Price: $320

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Detection principle

Hypoxanthine are oxidized by xanthine oxidase (XOD) to produce xanthine and super oxygen anion, which will quickly converte to hydrogen peroxide in the system, and then, in the role of peroxidase, hydrogen peroxide can oxidize the non-fluorescent probe to fluorescent substance. By measuring the fluorescence value, the corresponding the activity of xanthine oxidase can be calculated.

Performance characteristics

Synonyms XOD
Sample type Serum, plasma, animal tissue
Sensitivity 0.01 U/L
Detection range 0.01 -1.2 U/L
Detection method Fluorescence method
Assay type Enzyme Activity
Assay time 25 min
Precision Average inter-assay CV: 9%Average intra-assay CV: 4.1%
Other instruments required Vortex mixer, Centrifuge
Storage -20℃
Valid period 6 months

Dilution of sample

It is recommended to take 2~3 samples with expected large difference to do pre-experiment before formal experiment and dilute the sample according to the result of the pre-experiment and the detection range (0.01 -1.2 U/L).

The recommended dilution factor for different samples is as follows (for reference only):

Sample type

Dilution factor

Mouse serum


Dog serum


Rat plasma


10% Rat kidney tissue homogenate


Horse serum


Human plasma


10% Mouse heart tissue homogenate


10% Rat lung tissue homogenate


Note: The diluent is reagent 1.


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