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J Chromatogr A

Title:		"Miniature radio-frequency mobility analyzer as a gas chromatographic detector for oxygen-containing volatile organic compounds, pheromones and other insect attractants"
Author(s):		Eiceman GA; Tadjikov B; Krylov E; Nazarov EG; Miller RA; Westbrook J; Funk P;
Address:		"Department of Chemistry and Biochemistry, New Mexico State University, Las Cruces 88003-0001, USA. geiceman@nmsu.edu"
Journal Title:		J Chromatogr A
Year:		2001
Volume:		917
Issue:		1-Feb
Page Number:		205 - 217
DOI:		10.1016/s0021-9673(01)00656-2
ISSN/ISBN:		0021-9673 (Print) 0021-9673 (Linking)
Abstract:		"A high electric field, radio-frequency ion mobility spectrometry (RF-IMS) analyzer was used as a small detector in gas chromatographic separations of mixtures of volatile organic compounds including alcohols, aldehydes, esters, ethers, pheromones, and other chemical attractants for insects. The detector was equipped with a 2 mCi 63Ni ion source and the drift region for ion characterization was 5 mm wide, 15 mm long and 0.5 mm high. The rate of scanning for the compensation voltages was 60 V s(-1) and permitted four to six scans to be obtained across a capillary chromatographic elution profile for each component. The RF-IMS scans were characteristic of a compound and provided a second dimension of chemical identity to chromatographic retention adding specificity in instances of co-elution. Limits of detection were 1.6-55 x 10(-11) g with an average detection limit for all chemicals of 9.4 x 10(-11) g. Response to mass was linear from 2-50 x 10(-10) g with an average sensitivity of 4 pA ng(-1). Separations of pheromones and chemical attractants for insects illustrated the distinct patterns obtained from gas chromatography with RF-IMS scans in real time and suggest an analytical utility of the RF-IMS as a small, advanced detector for on-site gas chromatographs"
Keywords:		"Chromatography, Gas/*instrumentation Organic Chemicals/*analysis Oxygen/*analysis Pheromones/*analysis Radio Waves Sensitivity and Specificity Volatilization;"
Notes:		"MedlineEiceman, G A Tadjikov, B Krylov, E Nazarov, E G Miller, R A Westbrook, J Funk, P eng Research Support, Non-U.S. Gov't Netherlands 2001/06/14 J Chromatogr A. 2001 May 11; 917(1-2):205-17. doi: 10.1016/s0021-9673(01)00656-2"