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"A compact photoacoustic gas sensor based on a custom diameter Tu2010-shaped cell for trace gas detection was developed. " The acoustic pressure distribution in the variable diameter Tu2010-shaped cell and conventional Tu2010-shaped photoacoustic cell with the same size was significantly higher than that in the same position as the conventional Tu2010shaped cell at the same rate.
"The effect of operating parameters of an ion mobility spectrometer, including drift gas flow rate and drift tube temperature, on sensitivity and resolution were investigated. " Compared to gas chromatography, and electron capture detector under the same gas chromatography conditions, gas chromatography coupled with electron capture detector under the same gas chromatography conditions, improved sensitivity for organic chloride determination was demonstrated under study. Gas chromatography coupled with ion mobility spectrometry has the ability to perform online monitoring of impurities in hydrogen for fuel cell vehicles due to the device's portability and its detection capabilities.
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