Determination of total chromium by flame atomic absorption spectrometry after coprecipitation by cerium(IV) hydroxide

Divrikli U., SOYLAK M., Elci L.

ENVIRONMENTAL MONITORING AND ASSESSMENT, vol.138, pp.167-172, 2008 (SCI-Expanded) identifier identifier identifier

  • Publication Type: Article / Article
  • Volume: 138
  • Publication Date: 2008
  • Doi Number: 10.1007/s10661-007-9754-7
  • Journal Name: ENVIRONMENTAL MONITORING AND ASSESSMENT
  • Journal Indexes: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Page Numbers: pp.167-172
  • Keywords: cerium (IV) hydroxide, coprecipitation, flame atomic absorption spectrometry, total chromium, wastewater, HEAVY-METALS, SEA-WATER, SPECIATION
  • Erciyes University Affiliated: Yes

Abstract

A method for the preconcentration of the total chromium based on coprecipitation with cerium (IV) hydroxide is proposed for determination of chromium by flame atomic absorption spectrometry. Different factors including carrier element amount, pH, sample volume and matrix ion effects for the precipitation were examined. The detection limit of the total chromium (k = 3, N = 15) was 0.18 mu g l(-1). The presented method was applied for the determination of chromium in the wastewater samples from Kayseri and Nigde Organized Industrial Region-Turkey and in drinking water from our laboratory, Kayseri with satisfactory results (relative standard deviations below 8%, recoveries 95%). The analytical results obtained by the proposed method for certified copper sample was in good agreement with the certified value.