TY - JOUR
T1 - Recent developments and trends in miniaturized gas preconcentrators for portable gas chromatography systems: A review
AU - Lara-Ibeas, Irene
AU - Rodríguez Cuevas, Alberto
AU - Le Calvé, Stéphane
PY - 2021/11/1
Y1 - 2021/11/1
N2 - In the last years, a growing number of fields such as air quality monitoring, breath analysis or explosives and chemical warfare agents detection requiring fast, on-site, sensitive analysis has led to the development of portable gas chromatography systems. In most cases, these systems integrate a miniaturized gas preconcentrator, which provides a significant enhancement of the sensitivity enabling quantification of analytes present in the sample at trace levels. In this review, the authors have focused on recent developments in these preconcentrators integrated in portable gas chromatography systems. The main materials and fabrication techniques, designs, heating technologies, fluidic connections, adsorbents, and applications are discussed. In addition, an analysis of some factors affecting preconcentration performance is presented. A new figure of merit called Normalized Preconcentration Efficacy (NPE) is proposed to evaluate the performance of these devices in a standardized manner, making possible a more straightforward comparison between different devices.
AB - In the last years, a growing number of fields such as air quality monitoring, breath analysis or explosives and chemical warfare agents detection requiring fast, on-site, sensitive analysis has led to the development of portable gas chromatography systems. In most cases, these systems integrate a miniaturized gas preconcentrator, which provides a significant enhancement of the sensitivity enabling quantification of analytes present in the sample at trace levels. In this review, the authors have focused on recent developments in these preconcentrators integrated in portable gas chromatography systems. The main materials and fabrication techniques, designs, heating technologies, fluidic connections, adsorbents, and applications are discussed. In addition, an analysis of some factors affecting preconcentration performance is presented. A new figure of merit called Normalized Preconcentration Efficacy (NPE) is proposed to evaluate the performance of these devices in a standardized manner, making possible a more straightforward comparison between different devices.
KW - Gas chromatography
KW - Microfabrication
KW - Miniaturization
KW - Normalized Preconcentration Efficacy (NPE)
KW - Preconcentration
KW - VOC detection
UR - http://www.scopus.com/inward/record.url?scp=85111193871&partnerID=8YFLogxK
UR - https://www.sciencedirect.com/science/article/pii/S0925400521010170?via%3Dihub
U2 - 10.1016/j.snb.2021.130449
DO - 10.1016/j.snb.2021.130449
M3 - Article
AN - SCOPUS:85111193871
SN - 0925-4005
VL - 346
JO - Sensors and Actuators, B: Chemical
JF - Sensors and Actuators, B: Chemical
M1 - 130449
ER -