University of North Florida
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Stuart Chalk, Ph.D.
Department of Chemistry
University of North Florida
Phone: 1-904-620-1938
Fax: 1-904-620-3535
Email: schalk@unf.edu
Website: @unf

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Inorganic compound

Citations 1

"Determination Of Lead In Calcium Carbonate By Flow Injection Hydride Generation With Dc Plasma Atomic Emission Detection"
Spectrochim. Acta B 1998 Volume 53, Issue 6-8 Pages 1121-1129
Ian D. Brindle*, Roger McLaughlin and Napa Tangtreamjitmun

Abstract: Flow injection hydride generation, coupled with DC plasma atomic emission spectrometry was used for the determination of trace lead concentrations in calcium carbonate matrixes. The use of ferricyanide combined with sodium tetrahydroborate(III) enable the prodn. of plumbane from acid solution The plumbane is separated in a new gas-liq. separator and delivered to the plasma for determination Detection limits for the technique are 0.7 ng mL-1. Precision of measurements at the 20 ng mL-1 level was 1.6% relative standard deviation. In a study of interferences, Fe(II), Fe(III), Cd(II), Co(II), Mn(II), Ni(II) and Zn(II) do not interfere. The presence of copper(II) at 1 µg mL-1 reduced the signal from lead by 50%. Samples can be analyzed at a rate >60 h-1.
Lead Spectrophotometry Interferences Phase separator Volatile generation