YANG Juan-juan1, REN Nan2, ZHOU Jia1, et al. Nerve agent stimulant gas sensor based on zeolite 13X[J]. 2008, (2): 86-88+92. DOI: 10.13873/j.1000-97872008.02.023.
An impedance gas sensor based on zeolite 13X for the detection of the nerve agent stimulant DMMP
which is regarded as the stimulant for sarin
is developed.The sensitivity of the sensor for different volume fraction of DMMP gas is determined by exciting with an alternating voltage and determining the impedance response.The sensitivity for 0.2×10-6
0.4×10-6
1×10-6DMMP is investigated
respectively.The normalized resistance for 1×10-6DMMP can reach 13.2% at 0.01Hz.The selectivity of zeolite film 13X and Cu-β is also compared in the detection of 1×10-6DMMP
100×10-6CO2and saturated ethanol
respectively.The experimental results show the good sensitivity and selectivity of the gas sensor based on zeolite 13X for the detection of DMMP gas.
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