An ethyl acetate sensor utilizing cataluminescence on Y₂O₃ nanoparticles.
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.
Cao
Xiaoan
X
Environmental Science and Engineering Institute, Guangzhou University, Guangzhou, People's Republic of China. caoxiaoan2003@yahoo.com.cn
Tao
Ying
Y
Li
Liling
L
Liu
Yonghui
Y
Peng
Yan
Y
Li
Jinwen
J
D000085:Acetates / Q000737:chemistry*; D002384:Catalysis; D008163:Luminescent Measurements / Q000379:methods*; D046529:Microscopy, Electron, Transmission; D053758:Nanoparticles / Q000737:chemistry*; D015019:Yttrium / Q000737:chemistry*
D000085:Acetates; D015019:Yttrium; C007650:ethyl acetate