Int J Oral Biol.  2017 Dec;42(4):197-201. 10.11620/IJOB.2017.42.4.197.

Capillary Electrophoresis Detection of Hydrogen Peroxide by Using Titanium Ion and 4-(2-thiazolylazo)resorcinol

• Phuong DV
• Yoo H

• KMID: 2404845
• DOI: http://doi.org/10.11620/IJOB.2017.42.4.197

Abstract

A novel method for the detection of hydrogen peroxide in aqueous solution was developed via reaction between Hâ‚‚Oâ‚‚, trivalent titanium ion (Ti³âº) and 4-(2-thiazolylazo) resorcinol (TAR), resulting in a ternary complex with a maximum UV absorbance at 530 nm. The CE detection of Hâ‚‚Oâ‚‚ was fast, sensitive and cost-effective without pretreatment procedures. Hâ‚‚Oâ‚‚ was detected within 15 min at 1 to 100 µM range with the lowest detection limit at 1.0 µM. Under the optimized CE conditions, the concentration of Hâ‚‚Oâ‚‚ in coffee or tea extract was quantitatively determined. Our results show that CE detection of the ternary complex of Hâ‚‚Oâ‚‚-Ti³âº-TAR has potential applications for the detection of H2O2 in aqueous sources.

Keyword

Hydrogen peroxide; capillary electrophoresis (CE); titanium ion (Ti³⁺); 4-(2-thiazolylazo)resorcinol (TAR)

MeSH Terms

Capillaries*
Coffee
Electrophoresis, Capillary*
Hydrogen Peroxide*
Hydrogen*
Limit of Detection
Methods
Tea
Titanium*
Coffee
Hydrogen
Hydrogen Peroxide
Tea
Titanium