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Development of a benzaldehyde sensor utilizing chemiluminescence on nanosized Y 2 O 3
Author(s) -
Wu Yayan,
Zhang Sichun,
Wang Xin,
Zhang Zhenxi
Publication year - 2008
Publication title -
luminescence
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.428
H-Index - 45
eISSN - 1522-7243
pISSN - 1522-7235
DOI - 10.1002/bio.1047
Subject(s) - benzaldehyde , chemiluminescence , detection limit , selectivity , chemistry , sensitivity (control systems) , analytical chemistry (journal) , materials science , chromatography , catalysis , organic chemistry , electronic engineering , engineering
A chemiluminescence sensor has been proposed for sensitive determination of benzaldehyde, with nanosized Y 2 O 3 as the sensing material. Under optimized conditions, the linear range of the CL intensity vs. the concentration of benzaldehyde vapour is 1.8 ng/mL–10.8 µg/mL ( r 2 = 0 . 9996), with a detection limit of 0.90 ng/mL (signal:noise ratio = 3:1). The sensor also exhibits high selectivity to benzaldehyde because no or weak CL signals have been detected when foreign substances are introduced into the sensor. In addition, the sensor also shows good stability and longer lifetime within 100 h. The results indicate that the proposed sensor, which has high sensitivity and selectivity, shows great potential for the detection of benzaldehyde. Copyright © 2008 John Wiley & Sons, Ltd.