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.

scholarly journals Determination of peracetic acid and hydrogen peroxide in the mixture

2002 ◽  
Vol 59 (3) ◽  
pp. 277-279 ◽  
Author(s):  
Milanka Bodiroga ◽  
Jasminka Ognjanovic
Keyword(s):  
Hydrogen Peroxide ◽  
Acid Medium ◽  
Potassium Permanganate ◽  
Potassium Iodide ◽  
Peracetic Acid ◽  
Iodometric Titration ◽  
Oxidizing Agents ◽  
Titration Vessel

Iodometric and permanganometric titrations were used for determination of peracetic acid and hydrogen peroxide (H2O2) in the mixture. Two procedures were described and compared. Titrations could be done in only one vessel, in the same reaction mixture, when iodometric titration of peracetic acid was continued after the permanganometric titration of H2O2, (procedure A). Peracetic acid and H2O2, as oxidizing agents, reacted with potassium iodide in an acid medium, evolving iodine. This reaction was used for the quantitative iodometric determination of total peroxide in procedure B. H2O2 reacted with potassium permanganate in acid medium, but peracetic acid did not react under the same conditions. That made possible the selective permanganometric determination of H2O2 in the presence of peracetic acid. The procedure B was performed in two titration vessels (KV=3.4% for peracetic acid, 0.6% for H2O2). The procedure A for iodometric determination of peracetic acid in one titration vessel after permanganometric titration of H2O2 was recommended (KV=2,5% for peracetic acid, 0,45% for H2O2).

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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