Chemical Agent Detection Using GC-IMS: A Comparative Study

• Published in: IEEE sensors journal Vol. 10; no. 3; pp. 451 - 460
• Main Authors: Kwan, Chiman, Snyder, A. Peter, Erickson, Richard P., Smith, Philip A., Maswadeh, Waleed M., Ayhan, Bulent, Jensen, Janet L., Jensen, James O., Tripathi, Ashish
• Format: Journal Article
• Language: English
• Published: New York IEEE 01.03.2010; The Institute of Electrical and Electronics Engineers, Inc. (IEEE)
• Subjects: Biomedical engineering; Biomedical imaging; Chemical processes; Chemical properties; Cross sections; Drift; Engineering in medicine and biology; Gas chromatography; Gas chromatography (GC); Image edge detection; Image processing; ion mobility spectrometry (IMS); Ionization; Portability; receiver operating characteristic (ROC); Sensors; Spectrometry; Spectroscopy; Toxic chemicals; Underwater vehicles

Low-cost and portable gas chromatography-ion mobility spectrometry (GC-IMS) has been used to identify chemicals. To accomplish this, two parameters are used. The first parameter relates to the GC retention time (RT), which is the residence time of an analyte as it passes through the column. Differen...