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J Chromatogr A


Title:High-throughput reactor for simulating the flame photometric detector
Author(s):Thurbide KB; Aue WA;
Address:"Department of Chemistry, University of Calgary, Alberta, Canada. thurbide@ucalgary.ca"
Journal Title:J Chromatogr A
Year:2001
Volume:905
Issue:1-Feb
Page Number:241 - 250
DOI: 10.1016/s0021-9673(00)00991-2
ISSN/ISBN:0021-9673 (Print) 0021-9673 (Linking)
Abstract:"Quenching of luminescing species by co-eluting hydrocarbons has been widely reported in the flame photometric detector (FPD). This paper describes a novel method of investigating the chemical behavior of both analyte and quencher molecules in the FPD. The method is designed to reproduce the FPD's behaviour on a large scale by using a custom-built reactor. The high-throughput reactor's multi-capillary burner, situated inside a glass housing, is well suited to approximate the low-temperature, fuel-rich conditions of the conventional FPD, and also allows the study of various other flame phenomena. Wide regions of gas composition can be accessed by both diffusion- and premixed-type flames, and products can be easily sampled. Effluent collection demonstrates that 2 to 82% of various organic compounds may survive passage through the diffusion flame and be recovered intact. The recovery of several (unchanged) model hydrocarbons was found to decrease with increasing carbon number. Hetero-atoms such as sulfur, nitrogen, or oxygen greatly decrease the recovery of molecules relative to their pure hydrocarbon analogues. Compared to a diffusion flame, the recoveries of n-alkanes from a premixed flame are much lower and largely independent of carbon number or volatility"
Keywords:"Chromatography, Gas/*instrumentation Spectrophotometry/*instrumentation;"
Notes:"MedlineThurbide, K B Aue, W A eng Research Support, Non-U.S. Gov't Netherlands 2001/02/24 J Chromatogr A. 2001 Jan 5; 905(1-2):241-50. doi: 10.1016/s0021-9673(00)00991-2"

 
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