• DOI:10.1021/ac800748m
• Corpus ID: 33689480

Oxidation of ethyl ether on borate glass: chemiluminescence, mechanism, and development of a sensitive gas sensor.

@article{Hu2008OxidationOE,
  title={Oxidation of ethyl ether on borate glass: chemiluminescence, mechanism, and development of a sensitive gas sensor.},
  author={Jing Hu and Kailai Xu and Yun-Wan Jia and Yi Lv and Yubao Li and Xiandeng Hou},
  journal={Analytical chemistry},
  year={2008},
  volume={80 21},
  pages={
          7964-9
        }
}

• Jing Hu, Kailai Xu, +3 authors X. Hou
• Published 8 October 2008
• Chemistry
• Analytical chemistry

A gas sensor was developed by using the chemiluminescence (CL) emission from the oxidation of ethyl ether by oxygen in the air on the surface of borate glass. Theoretical calculation, together with experimental investigation, revealed the main CL reactions: ethyl ether is first oxidized to acetaldehyde and then to acetic acid, during which main luminous intermediates such as CH 3CO (*) are generated and emit light with a peak at 493 nm. At a reaction temperature of 245 degrees C, the overall maximal emission was found at around 460 nm, and the linear range of the CL intensity versus the concentration of ethyl ether was 0.12-51.7 microg mL (-1) ( R = 0.999, n = 7) with a limit of detection (3sigma) of 0.04 microg mL (-1). Interference from foreign substances including alcohol (methanol, ethanol and isopropanol), acetone, ethyl acetate, n-hexane, cyclohexane, dichloromethane, or ether ( n-butyl ether, tetrahydrofuran, propylene oxide, isopropyl ether and methyl tert-butyl ether) was not significant except a minimal signal from n-butyl ether (<2%). It is a simple, sensitive and selective gas sensor for the determination of trace ethyl ether.