Kinetics and mechanism of a chemiluminescent clock reaction based on the horseradish peroxidase catalysed oxidation of luminol by hydrogen peroxide

1990 ◽  
pp. 1385 ◽  
Author(s):  
Thomas E. G. Candy ◽  
Martin Hodgson ◽  
Peter Jones
Keyword(s):  
Hydrogen Peroxide ◽  
Horseradish Peroxidase ◽  
Kinetics And Mechanism ◽  
Catalysed Oxidation ◽  
Clock Reaction

Kinetics and mechanism of the oxidation of mercury by peroxidase

1985 ◽  
Vol 63 (11) ◽  
pp. 2940-2944 ◽  
Author(s):  
Donald C. Wigfield ◽  
Season Tse
Keyword(s):  
Hydrogen Peroxide ◽  
Electron Transfer ◽  
Horseradish Peroxidase ◽  
Rate Constant ◽  
Order Rate Constant ◽  
Kinetics And Mechanism ◽  
Kinetics Of Oxidation ◽  
First Order ◽  
Iron Heme ◽  
Kinetics Of

The kinetics of oxidation of zero-valent mercury by the horseradish peroxidase system are reported. The reaction is first order in mercury and first order in peroxidase compound 1, and appear to obey these kinetics to completion of the reaction. The second order rate constant is 8.58 × 105 M−1 min−1 at 23 °C. The data are consistent with a simple two-electron transfer from mercury to the iron–heme system of peroxidase with the enzyme acting as a chemical oxidant that is continually being regenerated by reaction with hydrogen peroxide.

scholarly journals Monitoring the heme iron state in horseradish peroxidase to detect ultratrace amounts of hydrogen peroxide in alcohols

RSC Advances ◽  
2021 ◽  
Vol 11 (17) ◽  
pp. 9901-9910
Author(s):  
Raheleh Ravanfar ◽  
Alireza Abbaspourrad
Keyword(s):  
Hydrogen Peroxide ◽  
Horseradish Peroxidase ◽  
Oxidative Damage ◽  
Heme Iron ◽  
Aqueous Systems ◽  
Iron State ◽  
Low Concentrations

Despite the importance of hydrogen peroxide (H2O2) in initiating oxidative damage and its connection to various diseases, the detection of low concentrations of H2O2 (<10 μM) is still limited using current methods, particularly in non-aqueous systems.

scholarly journals The Reaction of Ferrous Horseradish Peroxidase with Hydrogen Peroxide

1970 ◽  
Vol 245 (9) ◽  
pp. 2409-2413
Author(s):  
Robert W. Noble ◽  
Quentin H. Gibson
Keyword(s):  
Hydrogen Peroxide ◽  
Horseradish Peroxidase
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