| Title: | Coupling needle trap devices with gas chromatography-ion mobility spectrometry detection as a simple approach for on-site quantitative analysis |
| Author(s): | Reyes-Garces N; Gomez-Rios GA; Souza Silva EA; Pawliszyn J; |
| Address: | "Department of Chemistry, University of Waterloo, Ontario, Canada N2L 3G1" |
| DOI: | 10.1016/j.chroma.2013.05.042 |
| ISSN/ISBN: | 1873-3778 (Electronic) 0021-9673 (Linking) |
| Abstract: | "This study presents needle trap device (NTD) coupled with a portable gas chromatography-ion mobility spectrometry detection system (NTD-GC-IMS) as an advantageous, simple, cheap and reliable approach for on-site quantitative analysis. The NTD-GC-IMS system was evaluated using alpha-pinene, limonene and acetone as analytical models. Results showed satisfactory response stability (intra and inter-day relative standard deviation (RSDs)<10%), as well as limits of detection (LODs) comparable to those provided by conventional benchtop instruments (LODs<0.7ng). Additionally, this methodology, together with solid phase microextraction (SPME-GC-IMS), was successfully used for on-site monitoring of temporal emissions of alpha-pinene by a pine branch at different times during the same day. Quantitative analysis was satisfactorily accomplished in a significantly short period of time (330s) owing to the low detection limits that IMS detection provides" |
| Keywords: | Calibration Gas Chromatography-Mass Spectrometry/*methods Least-Squares Analysis Limit of Detection Needles Reproducibility of Results Solid Phase Microextraction/*instrumentation/*methods Volatile Organic Compounds/analysis Gas chromatography-ion mobilit; |
| Notes: | "MedlineReyes-Garces, Nathaly Gomez-Rios, German Augusto Souza Silva, Erica A Pawliszyn, Janusz eng Research Support, Non-U.S. Gov't Netherlands 2013/06/19 J Chromatogr A. 2013 Jul 26; 1300:193-8. doi: 10.1016/j.chroma.2013.05.042. Epub 2013 May 24" |
