Abstract

Several authors have investigated so-called "cool" flames as atom reservoirs in atomic absorption spectrometry; these flames are usually entrained air-hydrogen flames in which the combustible gas (hydrogen) is diluted with the argon or nitrogen of a nebulizing gas. Such low temperature flames are well known to be very prone to chemical interferences. These chemical interferences could be eliminated by using the addition technique and the solvent extraction method. The present authors have also demonstrated that the premixed inert gas(entrained air)-hydrogen flames produced with the specially designed "multi-flame" burner can be used as suitable atom reservoirs for the determinations of zinc, tin, bismuth, arsenic and selenium, and gallium by atomic absorption spectrometry and that the chemical interferences encountered in their determinations can be removed by the addition of a large amount of lanthanum chloride, ferric chloride, magnesium chloride, and stannous chloride as interference-releasing agents.

The Application of Separated Flames in Analytical Flame Spectroscopy

G. F. Kirkbright and T. S. West
Appl. Opt. 7(7) 1305-1311 (1968)

Atomic Absorption Spectroscopy with High Temperature Flames

J. B. Willis
Appl. Opt. 7(7) 1295-1304 (1968)

Determination of Phosphorus and Sulfur in Fuel Rich Air–Hydrogen Flames

Augusta Syty and John A. Dean
Appl. Opt. 7(7) 1331-1336 (1968)

Atomic Emission Characteristics of a Premixed Acetylene–Nitrous Oxide, Total Consumption Flame

Victor G. Mossotti and Marjorie Duggan
Appl. Opt. 7(7) 1325-1330 (1968)

Nitrous Oxide Supported Flames for Atomic Absorption Spectroscopy

L. R. P. Butler and Anne Fulton
Appl. Opt. 7(10) 2131-2137 (1968)