Multi-wavelength spectrophotometric determination of hydrogen peroxide in water by oxidative coloration of ABTS via Fenton reaction

2019 ◽  
Vol 26 (26) ◽  
pp. 27063-27072 ◽  
Author(s):  
Mengyun Wang ◽  
Daiyao Wang ◽  
Shiyi Qiu ◽  
Junyang Xiao ◽  
Huahua Cai ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Spectrophotometric Determination ◽  
Fenton Reaction ◽  
Multi Wavelength

Multi-wavelength spectrophotometric determination of hydrogen peroxide in water with peroxidase-catalyzed oxidation of ABTS

Chemosphere ◽  
2018 ◽  
Vol 193 ◽  
pp. 833-839 ◽  
Author(s):  
Huahua Cai ◽  
Xin Liu ◽  
Jing Zou ◽  
Junyang Xiao ◽  
Baoling Yuan ◽  
...  
Keyword(s):  
Hydrogen Peroxide ◽  
Spectrophotometric Determination ◽  
Multi Wavelength ◽  
Catalyzed Oxidation

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.

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