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Anodic stripping voltammetric determination of lead and cadmium in soil extracts

  • D. Rúriková EMAIL logo and M. Kudravá
Published/Copyright: February 1, 2006
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Chemical Papers
From the journal Chemical Papers Volume 60 Issue 1

Abstract

Two single-step extraction procedures validated by BCR, extraction with 0.43 mol dm−3 acetic acid and 0.05 mol dm−3 EDTA, are used for assessing bioavailable species of Pb and Cd in soils. After an extensive study of interferences of humic substances and using standard additions procedures, the extractable contents of Pb and Cd have been determined by DPASV directly in soil extracts with a good reproducibility (RSD varied from 1.0 to 7.9 %). Pb(II) and Cd(II) were released from complex in EDTA extracts by pH adjustment to 1 with 1 mol dm−3 HCl. The results were compared with those obtained with atomic absorption spectrometry and indicated reasonable agreement of both methods. Exchangeable forms represented 0.2 to 3.3 % and 13.0 to 63.6 % of total content of Pb and Cd in soils, respectively. EDTA extraction released from soils 7.9 to 29.9 % and 33.5 to 59.6 % of total content of Pb and Cd, respectively.

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Published Online: 2006-2-1
Published in Print: 2006-2-1

© 2006 Institute of Chemistry, Slovak Academy of Sciences

Articles in the same Issue

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https://doi.org/10.2478/s11696-006-0004-1

Articles in the same Issue

  1. Carbon dioxide production in the oscillating Belousov—Zhabotinsky reaction with oxalic acid
  2. Potentiometric and thermodynamic studies of 3-methyl-1-phenyl-{p-[N-(pyrimidin-2-yl)-sulfamoyl]phenylazo}-2-pyrazolin-5-one and its metal complexes
  3. Spectral and electrochemical study of coordination molecules Cu4OX6L4: 3-Methylpyridine and 4-Methylpyridine Cu4OBrnCl(6−n)L4 complexes
  4. Anodic stripping voltammetric determination of lead and cadmium in soil extracts
  5. Gold and silver determination in Waters by SPHERON® Thiol 1000 preconcentration and ETAAS
  6. Syntheses, geometry optimization, and electronic structure of N-and C-substituted benzonaphthyridines
  7. Synthesis, spectral description, and lipophilicity parameters determination of phenylcarbamic acid derivatives with integrated N-phenylpiperazine moiety in the structure
  8. New methods in synthesis of acetylcholinesterase reactivators and evaluation of their potency to reactivate cyclosarin-inhibited AChE
  9. Furan-containing thiacyanine analogs and their antimicrobial activity
  10. Synthesis and biological activity of new 1,3,4-thiadiazole derivatives
  11. Synthesis and identification of immunogen medroxyprogesterone acetate residues in edible foods and preparation of the Antisera
  12. Synthesis and characterization of oligosalicylaldehyde-based epoxy resins
  13. Extracellular polysaccharides produced by acapsular mutant of Cryptococcus laurentii
  14. Liquid chromatography of synthetic polymers under limiting conditions of insolubility. I. Principle of the method
  15. Transport velocities of different particulate materials in pneumatic conveying
  16. Nitrous oxide emissions from waste incineration
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