Person-portable gas chromatography: Rapid temperature program operation through resistive heating of columns with inherently low thermal mass properties

Identification of chemical warfare agents from vapor samples using a field-portable capillary gas chromatography/membrane-interfaced electron ionization quadrupole mass spectrometry instrument with Tri-Bed concentrator

“…In order to overcome the drawback of time-consuming separations using typical capillary column methods, isothermal GC temperature programs have been adopted [47]. Just prior to 2000, resistive column heating (low thermal-mass (LTM)) technology, an innovation in the field of GC that enabled fast temperature ramping, has been developed [48,49]. As a result, GC-MS became more feasible for on-site confirmation of a wide range of CWAs.…”

“…Hapsite has been used as field analysis instrument for mainly quantifying volatile organic chemicals [57]. The latest version of the Hapsite ER [58] provides extended target analysis by adopting SPME and a thermal desorbing device at the inlet [49]. This inlet system is reported to be superior to the original sampling probe, which was found to have a hard memory effect due to condensation of less volatile compounds in the probe [59].…”

Identification of V‐type nerve agents in vapor samples using a field‐portable capillary gas chromatography/membrane‐interfaced electron ionization quadrupole mass spectrometry instrument with Tri‐Bed concentrator and fluoridating conversion tube

“…Within field‐deployable technologies, gas chromatography (GC)–MS instruments are the most promising candidates . In addition, resistive column heating (low thermal mass (LTM)) technology provides rapid on‐site confirmation of a wide range of CWAs . For example, a GC–MS machine consisting of an LTM capillary column GC and an electron ionization (EI) toroidal ion trap MS can identify CWAs by combining with solid‐phase microextraction (SPME) .…”

Temperature Control of Gas Chromatograph Based on Switched Delayed System Techniques

“…At present, gas chromatograph has been widely used in medicine, food safety, petrochemical [1], environmental science [2], and many other fields. However, with gas chromatograph applied to process analysis [3], quality testing [4], environment online monitoring [5], and sudden emergency monitoring, the contradiction between non-real-time measurement and the demand of the real-time measurement in various fields is becoming more and more obvious. Therefore, the application of gas chromatograph into the field of measure is restricted.…”