Issue 7, 2010
From the journal:

Analytical Methods

Vapor phase detection ofhydrogen peroxide with ambient sampling chemi/chemical ionization mass spectrometry

Lee Chuin Chen,*a   Zhan Yuab  and  Kenzo Hiraoka*a  

* Corresponding authors

a Clean Energy Research Center, University of Yamanashi, 4-3-11 Takeda, Kofu, Yamanashi, Japan
E-mail: hiraoka@yamanashi.ac.jp, leechuin.yamanashi@gmail.com
Tel: +8155-220-8572

b College of Chemistry and Biology, Shenyang Normal University, Shenyang, China

Abstract

In this paper, we demonstrate a mass spectrometric method for sensitive and rapid detection of gaseous hydrogen peroxide (H2O2) using an ambient sampling chemi/chemical ionization source. Metastable helium atoms (He*) were used as the primary ionizing agents and were generated from a dielectric barrier discharge (DBD) source. A gaseous sample of ambient air was drawn into an enclosed ionization chamber and subsequently mixed with metastable species at sub-atmospheric pressure. O2− ions produced from the ionization of ambient air readily react with H2O2 to form the stable [H2O2 + O2]− cluster ion. A detection limit of 0.8 ppbv was achieved by coupling the ion source to a commercial time-of-flight mass spectrometer. The construction of the ion source is simple, and vapors from bulky objects can also be analyzed directly by placing the sample close to the sampling nozzle. The versatility of this ion source for the application in rapid security screening is demonstrated by non-invasive detection of an aqueous solution of hydrogen peroxide concealed in closed beverage bottles.

Graphical abstract: Vapor phase detection of hydrogen peroxide with ambient sampling chemi/chemical ionization mass spectrometry

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Article information

DOI
https://doi.org/10.1039/C0AY00170H
Article type
Paper
Submitted
12 Mar 2010
Accepted
13 Apr 2010
First published
17 May 2010

Anal. Methods, 2010,2, 897-900

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Vapor phase detection of hydrogen peroxide with ambient sampling chemi/chemical ionization mass spectrometry

L. C. Chen, Z. Yu and K. Hiraoka, Anal. Methods, 2010, 2, 897 DOI: 10.1039/C0AY00170H

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