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Rapid Commun Mass Spectrom

Title:		A laser extraction/combustion technique for in situ delta(13)C analysis of organic and inorganic materials
Author(s):		Wieser ME; Brand WA;
Address:		"Finnigan MAT GmbH, Barkhausen Str. 2, 28197 Bremen, Germany"
Journal Title:		Rapid Commun Mass Spectrom
Year:		1999
Volume:		13
Issue:		13
Page Number:		1218 - 1225
DOI:		10.1002/(SICI)1097-0231(19990715)13:13<1218::AID-RCM652>3.0.CO;2-C
ISSN/ISBN:		1097-0231 (Electronic) 0951-4198 (Linking)
Abstract:		"A CO(2) laser extraction system is described for in situ delta(13)C analysis of organic and inorganic materials. Carbonaceous compounds volatilized by the laser are quantitatively converted to CO(2) gas by a combustion furnace mounted after the sample chamber. Gases produced by the laser and combustion processes are swept by helium carrier gas and separated by a packed gas chromatography column prior to their introduction to an isotope ratio monitoring mass spectrometer. A sample of lentil bean was analyzed at a spatial resolution of 200 microm and yielded delta(13)C values with precision of +/- 0.3 per thousand. The accuracy of delta(13)C measurements was better than +/- 0.5 per thousand from NBS 22 (mineral oil), USGS 24 (graphite), and IAEA CO-1 (calcium carbonate). Copyright 1999 John Wiley & Sons, Ltd"
Keywords:
Notes:		"PublisherWieser, ME Brand, WA eng England 1999/07/17 Rapid Commun Mass Spectrom. 1999 Jul; 13(13):1218-1225. doi: 10.1002/(SICI)1097-0231(19990715)13:13<1218::AID-RCM652>3.0.CO; 2-C"