On-line packed column supercritical fluid chromatography--microwave-induced plasma atomic emission.
Interfacing and evaluation of packed column supercritical fluid chromatography (SFC)-microwave-induced plasma atomic emission detection (AED) is described. Via a flow splitter and an integral restrictor, efficient transfer of solutes from column to detector without band broadening is obtained. Variation of CO2 flow-rate during pressure gradients has little influence on both AED signal and baseline drift while it provides similar sensitivity as in capillary SFC. Continuous introduction of CO2 in the plasma reduces the available range of emission domains; nevertheless the region of detection which is free of CO2 interferences allows selective detection of C1 and Br as reported in this paper. reserved.
Laboratoire Environnement et Chimie Analytique, Ecole Supérieure de Physique et de Chimie Industrielles de Paris, France.
F
F
Bertoncini
D
D
Thiébaut
M
M
Caude
M
M
Gagean
B
B
Carrazé
P
P
Beurdouche
X
X
Duteurtre
D002245:Carbon Dioxide / Q000737:chemistry; D002849:Chromatography, Gas / Q000379:methods*; D004577:Electron Probe Microanalysis / Q000379:methods*; D006540:Herbicides / Q000032:analysis; D008872:Microwaves; D010671:Phenylurea Compounds / Q000032:analysis; D012680:Sensitivity and Specificity
D006540:Herbicides; D010671:Phenylurea Compounds; D002245:Carbon Dioxide