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Talanta

Title:		A comparative study between different alternatives to prepare gaseous standards for calibrating UV-Ion Mobility Spectrometers
Author(s):		Criado-Garcia L; Garrido-Delgado R; Arce L; Valcarcel M;
Address:		"Department of Analytical Chemistry, Annex C-3 Building, Campus of Rabanales, Institute of Fine Chemistry and Nanochemistry, University of Cordoba, 14071 Cordoba, Spain"
Journal Title:		Talanta
Year:		2013
Volume:		20130315
Issue:
Page Number:		111 - 118
DOI:		10.1016/j.talanta.2013.02.054
ISSN/ISBN:		1873-3573 (Electronic) 0039-9140 (Linking)
Abstract:		"An UV-Ion Mobility Spectrometer is a simple, rapid, inexpensive instrument widely used in environmental analysis among other fields. The advantageous features of its underlying technology can be of great help towards developing reliable, economical methods for determining gaseous compounds from gaseous, liquid and solid samples. Developing an effective method using UV-Ion Mobility Spectrometry (UV-IMS) to determine volatile analytes entails using appropriate gaseous standards for calibrating the spectrometer. In this work, two home-made sample introduction systems (SISs) and a commercial gas generator were used to obtain such gaseous standards. The first home-made SIS used was a static head-space to measure compounds present in liquid samples and the other home-made system was an exponential dilution set-up to measure compounds present in gaseous samples. Gaseous compounds generated by each method were determined on-line by UV-IMS. Target analytes chosen for this comparative study were ethanol, acetone, benzene, toluene, ethylbenzene and xylene isomers. The different alternatives were acceptable in terms of sensitivity, precision and selectivity"
Keywords:		Acetone/analysis/chemistry Benzene/analysis/chemistry Benzene Derivatives/analysis/chemistry Calibration Ethanol/analysis/chemistry Gases/*analysis/chemistry/standards Ions/chemistry Reference Standards Reproducibility of Results Spectrum Analysis/instrum;
Notes:		"MedlineCriado-Garcia, Laura Garrido-Delgado, Rocio Arce, Lourdes Valcarcel, Miguel eng Comparative Study Research Support, Non-U.S. Gov't Netherlands 2013/04/30 Talanta. 2013 Jul 15; 111:111-8. doi: 10.1016/j.talanta.2013.02.054. Epub 2013 Mar 15"