Determination of Fe(II) and H2O2in Atmospheric Liquid Water by Peroxyoxalate Chemiluminescence
- 1 June 1995
- journal article
- research article
- Published by Informa UK Limited in International Journal of Environmental Analytical Chemistry
- Vol. 60 (2-4), 361-375
- https://doi.org/10.1080/03067319508042889
Abstract
The chemiluminescence reaction of oxygen with bis(2,4,6-trichlorophenyl)oxalate (TCPO) in the presence of Fe(II) has been investigated under the analytical and mechanistic point of view. Its suitability for the determination of Fe(II) as well as H2O2 in atmospheric liquid water by using a new static fiberoptic luminometer (FOL) and a flow-injection analysis (FIA) system is demonstrated. Results obtained so far suggest, that chemiluminescence is generated by superoxide ion (O2 −) produced by autoxidation of Fe(II) through dissolved oxygen. The analytical method based on this reaction shows high sensitivity and detection limits below 100 nM Fe(II). Its application to rain water analysis indicates that Fe(II) and H2O2 may be coexistent in the atmospheric liquid phase.Keywords
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