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Title: Development of portable metal oxide gas sensor for the detection of foul odour
Authors: Ghanshyam, C
Mishra, Sunita
Sharma, A K
Ram, N
Singh, Satinder
Bajpai, R P
Bedi, R K
Keywords: Halitosis
Metal oxide gas sensor
Volatile sulphur com-pounds
Issue Date: Oct-2004
Publisher: CSIR
IPC CodeInt. Cl.7:B 01 D 53/48
Abstract: Halitosis or oral malodour originates with the anaerobic bacterial degradation of sulphur containing amino acids within the oral cavity resulting in the emission of hydrogen sulphide (H2S), methyl mercaptan (CH3SH) and dimethyl sulphide (CH3SCH3), collectively known as volatile sulphur compounds (VSCs). The sensing of VSCs is needed for dentistry as well as for auto-ventilation applications. This paper discusses the design and development of the portable and low cost metal oxide based gas sensor for the foul odour applications. The substrate design, the sensor parameters and the proposed in-house works are described.
Page(s): 842-845
ISSN: 0975-1084 (Online); 0022-4456 (Print)
Source:JSIR Vol.63(10) [October 2004]

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