Characterization and optimization of flame photometric detection in supercritical fluid chromatography

Journal Article · Sun Jan 01 04:00:00 EST 1989 · Anal. Chem.; (United States)

DOI:https://doi.org/10.1021/ac00176a013· OSTI ID:6223906

Olesik, S V; Pekay, L A; Paliwoda, E A

The flame of photometric detector (FPD) was optimized for the analysis of organosulfur compounds by supercritical fluid chromatography (SFC). The flame gases used in this study were hydrogen and oxygen. The optimum flow rates for hydrogen and oxygen were determined. The effect of placing the pressure restrictor different distances away from the flame was examined. The flame chemistry that results when carbon dioxide flows into a hydrogen-rich flame was characterized. The coelution of hydrocarbons with sulfur-containing compounds did not markedly quench the sulfur dimer signal for concentrations that were appropriate for capillary SFC. Detection limits as low as 0.1 ng of sulfur were achieved with detectivities of 8 pg/s.

• Research Organization: Ohio State Univ., Columbus (USA)
• DOE Contract Number: AC22-87PC79887
• OSTI ID: 6223906
• Journal Information: Anal. Chem.; (United States), Journal Name: Anal. Chem.; (United States) Vol. 61:1; ISSN ANCHA
• Country of Publication: United States
• Language: English

Related Subjects

37 INORGANIC, ORGANIC, PHYSICAL, AND ANALYTICAL CHEMISTRY
400102* -- Chemical & Spectral Procedures
400105 -- Separation Procedures
400800 -- Combustion
Pyrolysis
& High-Temperature Chemistry
CHEMICAL ANALYSIS
CHROMATOGRAPHY
DATA
ELEMENTS
EXPERIMENTAL DATA
FLAME PHOTOMETRY
FLAMES
FLOW RATE
HYDROGEN
INFORMATION
NONMETALS
NUMERICAL DATA
OPTIMIZATION
ORGANIC COMPOUNDS
ORGANIC SULFUR COMPOUNDS
OXYGEN
PHOTOMETRY
QUANTITATIVE CHEMICAL ANALYSIS
SEPARATION PROCESSES
SUPERCRITICAL FLUID CHROMATOGRAPHY
TRACE AMOUNTS