Abstract

Many heavy metals can be chelated with ammonium pyrrolidine dithiocarbamate (1-pyrrolidinecarbodithioic acid ammonium salt) and extracted into an organic solvent for determination by atomic absorption flame spectrophotometry. Methyl <i>iso</i>-butyl ketone (4-methyl-2-pentanone) was found to be a satisfactory solvent for this procedure. Extraction from a large volume of sample solution into a small volume of ketone will concentrate the element being determined and the sensitivity of the determination will thereby be greatly increased. This is an important factor in analyses for micronutrients in biological samples or trace elements in other materials.

Atomic Absorption Spectroscopy with High Temperature Flames

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

Solvent effects on two-line atomic fluorescence of indium

Qing N. Chan, Paul R. Medwell, Peter A. M. Kalt, Zeyad T. Alwahabi, Bassam B. Dally, and Graham J. Nathan
Appl. Opt. 49(8) 1257-1266 (2010)

Effect of soot self-absorption on color-ratio pyrometry in laminar coflow diffusion flames

Nathan J. Kempema and Marshall B. Long
Opt. Lett. 43(5) 1103-1106 (2018)

A Multichannel Spectrometer for Simultaneous Atomic Absorption and Flame Emission Analysis

R. Mavrodineanu and R. C. Hughes
Appl. Opt. 7(7) 1281-1285 (1968)

Technical Note: Solvents for Spectrophotometry

J. Opt. Soc. Am. 43(3) 221-221 (1953)