DETECTION OF POLYATOMIC SPECIES IN NON-PREMIXED FLAMES USING TUNABLE DIODE-LASER ABSORPTION-SPECTROSCOPY

被引：6

作者：

TOLOCKA, MP ^{[1
]}

MILLER, JH ^{[1
]}

机构：

[1] GEORGE WASHINGTON UNIV,DEPT CHEM,WASHINGTON,DC 20052

来源：

MICROCHEMICAL JOURNAL | 1994年 / 50卷 / 03期

关键词：

D O I：

10.1006/mchj.1994.1103

中图分类号：

O65 [分析化学];

学科分类号：

070302 ; 081704 ;

摘要：

Quantitative determinations of polyatomic species in laboratory-scale hydrocarbon diffusion flames using tunable diode laser absorption spectroscopy is discussed. The diode laser used in these studies pumped the nu(4) fundamental of methane and the nu(4) + nu(5) combination band of acetylene in the 1260-1290 cm(-1) range in two different burner systems which supported both methane/air and ethylene/air non-premixed flames. For both molecules, the sensitivity of the measurement was a strong function of the local flame temperature, falling off rapidly as temperatures approached 2000 K. The detection limits for acetylene were lower than those for methane because of lower spectral line density in the former experiments. (C) 1994 Academic Press, Inc.

引用

页码：397 / 412

页数：16

共 31 条

[1] ANALYTICAL LINE SHAPES FOR LORENTZIAN SIGNALS BROADENED BY MODULATION [J].