Molecular absorption spectrometry by electrothermal evaporation in the graphite furnace-X Determination of chloride traces by AlCl ma in graphite cuvettes after liquid-liquid extraction of chloride with triphenyltin hydroxide.
The determination of traces of chloride by means of the molecular absorption of AlCl in graphite cuvettes is described. An extraction method for separation and preconcentration of the chloride has been developed, to avoid matrix effects. Extraction was done with 0.03M triphenyltin hydroxide in o-xylene, and stripping with 0.025M barium hydroxide. The method is sensitive and specific for chloride. The detection limit is about 1.5 ng of chloride, and the chloride content of 20 ml of 10(-7)M solution can be determined. The determination is possible in presence of excess of bromide and iodide.
Dittrich
K
K
Department of Chemistry, Karl-Marx-Universität Leipzig, 7010 Leipzig, G.D.R.
Spivakov
B Y
BY
Shkinev
V M
VM
Vorob'eva
G A
GA