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|Type:||Artigo de periódico|
|Title:||Enhanced Sensitivity And Selectivity Of A Gas Chromatography-microwave-induced Plasma Atomic Emission System (gc-mip) At The 685.6-nm Fluorine Emission Line|
|Abstract:||As part of the studies for the characterization of a gas chromatography with microwave-induced plasma atomic emission detection (GC-MIP) prototype, its behavior at the 685.6-nm fluorine emission line was studied with isooctane solutions of n-perfluoroheptane and benzene. This test mixture was chromatographed under varied conditions of the plasma support helium flow rate and microwave input power. A relatively high value of (3.9 ± 0.3) × 104 was found for the fluorine to carbon selectivity, with detection limits for fluorine as low as 1.3 ± 0.2 pg(F) · s-1. These levels for the selectivity and for the detection limit compare favorably with previous reports found in the literature for other GC-MIP systems. © 1999 John Wiley & Sons, Inc.|
|Appears in Collections:||Unicamp - Artigos e Outros Documentos|
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