Spectrophotometric determination of hydrogen peroxide: catalase activity and rates of hydrogen peroxide removal by erythrocytes

1996 ◽  
Vol 254 (2) ◽  
pp. 101-112 ◽  
Author(s):  
Noriyoshi Masuoka ◽  
Masahiro Wakimoto ◽  
Toshihiko Ubuka ◽  
Taku Nakano
Keyword(s):  
Hydrogen Peroxide ◽  
Spectrophotometric Determination ◽  
Catalase Activity ◽  
Peroxide Removal

scholarly journals Kinetic spectrophotometric determination of Bi(III) based on its catalytic effect on the oxidation of phenylfluorone by hydrogen peroxide

2009 ◽  
Vol 74 (8-9) ◽  
pp. 977-984
Author(s):  
Sofija Rancic ◽  
Snezana Nikolic-Mandic
Keyword(s):  
Hydrogen Peroxide ◽  
Spectrophotometric Determination ◽  
Reaction Rate ◽  
Catalytic Effect ◽  
Limit Of Detection ◽  
Kinetic Method ◽  
Limit Of Quantification ◽  
Kinetic Spectrophotometric ◽  
Good Agreement

A new reaction was suggested and a new kinetic method was elaborated for determination of Bi(III) in solution, based on its catalytic effect on the oxidation of phenyl-fluorone (PF) by hydrogen peroxide in ammonia buffer. By application of spectrophotometric technique, a limit of quantification (LQ) of 128 ng cm-3 was reached, and the limit of detection (LD) of 37 ng cm-3 was obtained, where LQ was defined as the ratio signal: noise = 10:1 and LD was defined as signal 3:1 against the blank. The RSD value was found to be in the range 2.8-4.8 % for the investigated concentration range of Bi(III). The influence of some ions upon the reaction rate was tested. The method was confirmed by determining Bi(III) in a stomach ulcer drug ('Bicit HP', Hemofarm A.D.). The obtained results were compared to those obtained by AAS and good agreement of results was obtained.

Simultaneous spectrophotometric determination of peracetic acid and the coexistent hydrogen peroxide using potassium iodide as the indicator

2019 ◽  
Vol 11 (14) ◽  
pp. 1930-1938 ◽  
Author(s):  
Junyang Xiao ◽  
Mengyun Wang ◽  
Zijun Pang ◽  
Lin Dai ◽  
Jinfeng Lu ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Water Treatment ◽  
Spectrophotometric Determination ◽  
Potassium Iodide ◽  
Peracetic Acid

Recently, increasing attention has been paid towards using commercial peracetic acid (PAA) solution as an efficient disinfectant or a strong oxidant in water treatment.

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