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While detection of alcohols in trace quantities is useful in a variety of commercial, industrial, environmental and defense applications, it plays a very crucial role in biomedical applications. Concentration of alcohols of as low as 0.4% methanol in 40% ethanol in blood is considered to be lethal and can lead to serious health issues. Developing a low cost highly accurate and a portable device to...
In this paper, we have studied the selectivity and sensitivity of an array of porous silicon sensors having different porosity and pore morphology for sensing organic vapors like methanol, ethanol and isopropyl alcohol. The output of the array when exposed to the individual and mixture form of vapors give a unique fingerprints of the vapors analyzed by multilayer perceptron based pattern recognition...
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