title: An ethyl acetate sensor utilizing cataluminescence on Y₂O₃ nanoparticles.
abstract: A cataluminescence (CTL) sensor using Y₂O₃ nanoparticles as the sensing materials was proposed for the determination of ethyl acetate. This ethyl acetate sensor showed high sensitivity and specificity at the optimal temperature of 264°C. Quantitative analysis was performed at a wavelength of 425 nm. The linear ranges of CTL intensity vs ethyl acetate concentrations were 2.0-250 ppm (r = 0.9965) and 250-6500 ppm (r = 0.9997) with a detection limit (3σ) of 0.5 ppm. There was no response or weak response when foreign substances such as formic acid, n-hexane, toluene, acetic acid, benzene, and formaldehyde passing through the surface of Y₂O₃ nanoparticles. The sensor had a long lifetime more than 80 h with 3600 ppm ethyl acetate. It had been applied successfully to determine ethyl acetate in artificial air samples.
authors.affiliation: Environmental Science and Engineering Institute, Guangzhou University, Guangzhou, People's Republic of China. caoxiaoan2003@yahoo.com.cn
authors.forename: Xiaoan
authors.initials: X
authors.lastname: Cao
authors.forename: Ying
authors.initials: Y
authors.lastname: Tao
authors.forename: Liling
authors.initials: L
authors.lastname: Li
authors.forename: Yonghui
authors.initials: Y
authors.lastname: Liu
authors.forename: Yan
authors.initials: Y
authors.lastname: Peng
authors.forename: Jinwen
authors.initials: J
authors.lastname: Li
mesh_terms: D000085:Acetates / Q000737:chemistry*; D002384:Catalysis; D008163:Luminescent Measurements / Q000379:methods*; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D015019:Yttrium / Q000737:chemistry*
chemical_list: D000085:Acetates; D015019:Yttrium; C007650:ethyl acetate