公开(公告)号：US10458962B2

公开(公告)日：2019-10-29

申请号：US15653256

申请日：2017-07-18

Applicant: Pulmostics Limited

Inventor： Yin Sun

IPC: G01N30/76 ,  G01N29/02 ,  G01N29/036 ,  G01N29/24 ,  G01N29/32 ,  G01N30/02 ,  G01N30/86 ,  G01N30/88

Abstract: A method for identification of chemicals in a sample using a gas chromatograph and a surface acoustic wave (SAW) sensor coupled with the gas chromatograph to define a gas chromatography (GC)/SAW system. The method includes receiving a temperature profile defining a varying target temperature as a function of time, separating one or more eluted components from a sample with the gas chromatograph, adjusting a temperature of the SAW sensor in accordance with the temperature profile as the one or more eluted components are separated from the sample by the gas chromatograph, generating SAW frequency response data with the SAW sensor, the SAW frequency response data including one or more peaks corresponding respectively to the one or more eluted components separated from the sample, and identifying a set of one or more candidate chemicals for an eluted component of interest based on a corresponding peak of the SAW frequency response data.

公开(公告)号：US20180340915A1

公开(公告)日：2018-11-29

申请号：US15987540

申请日：2018-05-23

Applicant: Pulmostics Limited

Inventor： Yin Sun

IPC: G01N30/30 ,  G01N30/60 ,  G01N30/72

Abstract: A gas chromatography (GC) column system includes an insulation tubing, a metallic GC column disposed within the insulation tubing and having an outer diameter that is less than or equal to an inner diameter of the insulation tubing, a first electrode in contact with the metallic GC column, and a second electrode in contact with the metallic GC column on an opposite side of the insulation tubing from the first electrode. The metallic GC column may be heated by applying a voltage across the first and second electrodes. The voltage may be controlled in response to a measured temperature of the metallic GC column.