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- W2390149852 abstract "A sensor system for identifying toxic gas was fabricated by extracting multidimensional cataluminescence( CTL) signal based on two kinds of catalytic sensitive materials. Under the optimal conditions of wavelength of 440 nm,temperature of 247 ℃ and flow rate of 240 mL / min,eighteen kinds of volatile organic compounds respectively generated CTL signal I 1( the first order reaction signal) when each vapor passed through nano-Al2O3 or MgO,then residual gas from first reaction was regarded as a new reactant and continued to be oxidized on nano-Al2O3 or MgO,generating new CTL signal I 2( the second order reaction signal). Moreover, for each organic gas,eight CTL signals could be obtained by changing the direction of the gas flowing through Al2O3-MgO,which formed the characteristic spectrum for each toxic compound. Different gases could be scientifically and objectively identified based on the principal component analysis( PCA). In addition,linear discriminant analysis( LDA) was utilized to identify eighteen kinds of organic gas in different concentration( 100,300 and 500 mL/m3) with an accuracy of 100%. Furthermore,the sensor could achieve quantitative analysis with the detection limits below the occupational exposure limit of workplace( GBZ2. 1-2007). Several kinds of common pollutants in the air had no interference on the detection of chosen toxic gases. Therefore, the sensor system may be capable to develop a micro-sensor with less sensing elements,good stability,convenient operation,rich information and strong recognition ability in real-life application." @default.
- W2390149852 created "2016-06-24" @default.
- W2390149852 creator A5032008157 @default.
- W2390149852 date "2014-01-01" @default.
- W2390149852 modified "2023-09-27" @default.
- W2390149852 title "Sensor Based on Extracting Multidimensional Cataluminescence Signals for Identifying Toxic Gas" @default.
- W2390149852 hasPublicationYear "2014" @default.
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