Abstract

Methods are described for the determination of Pb, Cu, and Zn in wine products. A lead lamp with demountable cathode is described as well as a new type of burner with an eight in, absorbing path and a slotted top. The temperature and height of the flame could be adjusted by means of an extra air current fed into the burner through the ordinary acetylene nozzle of a Zeiss atomizer. Heated air was used to atomize the solutions, and the efficiency of the burner was approximately 22%. Concentrated H₂SO₄ was used to dehydrate the samples before ashing at 500°C Recovery tests for lead were carried out at various temperatures. The results for lead are compared for a number of samples with those obtained by chemical analyses. Similar work is described for Cu and Zn. The coefficient of variation for Pb, Cu, and Zn was respectively 3.7%, 4.23%, and 4.11%. The results for Cu and Zn for a large number of wine samples are given.

Atomic Absorption Spectroscopy with High Temperature Flames

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

A Heated Chamber Burner for Atomic Absorption Spectroscopy

A. A. Venghiattis
Appl. Opt. 7(7) 1313-1316 (1968)

Nitrous Oxide Supported Flames for Atomic Absorption Spectroscopy

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

The Application of Separated Flames in Analytical Flame Spectroscopy

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

Optogalvanic resonance detection of pulsed dye laser atomic absorption

Mark A. Nippoldt and Robert B. Green
Appl. Opt. 20(18) 3206-3210 (1981)