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Colognesi M, Abollino O, Aceto M, et al. Flow injection determination of Pb and Cd traces with graphite furnace atomic absorption spectrometry. Talanta. 1997;44(5):867-75doi: 10.1016/s0039-9140(96)02131-5.
Colognesi, M., Abollino, O., Aceto, M., Sarzanini, C., & Mentasti, E. (1997). Flow injection determination of Pb and Cd traces with graphite furnace atomic absorption spectrometry. Talanta, 44(5), 867-75. https://doi.org/10.1016/s0039-9140(96)02131-5
Colognesi, M, et al. "Flow injection determination of Pb and Cd traces with graphite furnace atomic absorption spectrometry." Talanta vol. 44,5 (1997): 867-75. doi: https://doi.org/10.1016/s0039-9140(96)02131-5
Colognesi M, Abollino O, Aceto M, Sarzanini C, Mentasti E. Flow injection determination of Pb and Cd traces with graphite furnace atomic absorption spectrometry. Talanta. 1997 May;44(5):867-75. doi: 10.1016/s0039-9140(96)02131-5. PMID: 18966814.
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Talanta. 1997 May;44(5):867-75. doi: 10.1016/s0039-9140(96)02131-5.

Flow injection determination of Pb and Cd traces with graphite furnace atomic absorption spectrometry.

Talanta

M Colognesi, O Abollino, M Aceto, C Sarzanini, E Mentasti

Affiliations

  1. Department of Analytical Chemistry, University of Turin, Via P. Giuria n. 5, 10125 Turin, Italy.

PMID: 18966814 DOI: 10.1016/s0039-9140(96)02131-5

Abstract

The preconcentration and recovery of lead and cadmium traces at ng l(-1) level were evaluated in standard solutions and natural aqueous samples using a FIAS (Flow Injection Atomic Spectrometry) apparatus. The method is based on retention of the complex formed between Pb or Cd and 1,2-dihydroxy-3,5-benzendisulphonic acid (Tiron) on a macroporous anion-exchange resin. The recovery of the analytes was obtained by elution with 0.1 M HCl and their determination was performed by Graphite Furnace Atomic Absorption Spectrometry (GFAAS). The detection limits were 9 and 7 ng l(-1) for Pb and Cd respectively. The effects of sample solution pH and composition and of interfering agents as well as reagent purity are discussed. The technique was applied to the analysis of natural waters.

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