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公开(公告)号：EP1711806A1
公开(公告)日：2006-10-18
申请号：EP05708129.1
申请日：2005-01-21
申请人： ENVIRONICS OY
CPC分类号： G01N30/6073 , B01D53/02 , B01D61/00 , B01D63/02 , B01D2313/22 , G01N30/6043 , G01N30/6069 , G01N2030/0095
摘要： The invention relates to a gas chromatograph for the analysis of gas samples. It has a feed arrangement for feeding the sample, an open tubular capillary column for separating the components of the sample, temperature control means for controlling the temperature of the column, and a detector for detecting the separated components of the sample. The efficiency has been improved and a convenient hand-held version has been made possible by constructing the column of a bundle of open tubular capillaries having a gas permeable wall comprising a polymer membrane. The invention also relates to the use of such a column together with a detector for identifying gaseous samples.
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公开(公告)号：EP2013612A1
公开(公告)日：2009-01-14
申请号：EP07730576.1
申请日：2007-04-23
申请人： ENVIRONICS OY
发明人： UTRIAINEN, Mikko
IPC分类号： G01N27/12
CPC分类号： G01N27/128 , G01N27/16 , G01N33/0031
摘要： Micro hot-plate solid state gas sensor structure that comprises an additional buried electrode structure in the sensor structure, the structure being arranged to be applicable in related devices. The invention relates also to a measurement method of sensor resistance, which comprises a step of having a bias voltage or a grounding applied to the buried electrode.
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公开(公告)号：EP1711806B1
公开(公告)日：2011-11-30
申请号：EP05708129.1
申请日：2005-01-21
申请人： ENVIRONICS OY
CPC分类号： G01N30/6073 , B01D53/02 , B01D61/00 , B01D63/02 , B01D2313/22 , G01N30/6043 , G01N30/6069 , G01N2030/0095
摘要： The invention relates to a gas chromatograph for the analysis of gas samples. It has a feed arrangement for feeding the sample, an open tubular capillary column for separating the components of the sample, temperature control means for controlling the temperature of the column, and a detector for detecting the separated components of the sample. The efficiency has been improved and a convenient hand-held version has been made possible by constructing the column of a bundle of open tubular capillaries having a gas permeable wall comprising a polymer membrane. The invention also relates to the use of such a column together with a detector for identifying gaseous samples.
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