Skip to main content
padlock icon - secure page this page is secure

Comparison of voltammetric and AAS methods for As(III) quantification in presence of iron species in model water samples with a low mineral content

Buy Article:

$60.00 + tax (Refund Policy)

Voltammetry was adapted to quantify As(III) in model water samples with a low mineral content and compared to the Hydride Generation Atomic Absorption Spectrometry (HG-AAS) method. The specificity lies in the study of the influence of interfering species on the quantification of samples treated by coagulation/flocculation using iron salts. First, a Square Wave Cathodic Stripping Voltammetry method at a Hanging Mercury Drop Electrode (SW-CSV - HMDE) was optimised and compared with the HG-AAS method. Second, the influence of the presence of Fe(II), Fe(III) and As(V) was evaluated. No interferences from As(V) were observed, however for both methods, the As(III) signal decreased by 10% in presence of iron. Standard addition method was thus required to efficiently quantify As(III) in complex matrix and the SW-CSV (limit of quantification = 0.5 µg L-1) method was preferred to the HG-AAS technique to determine low As(III) levels ([As(III)] ≤ 2 µg L-1).
No Reference information available - sign in for access.
No Citation information available - sign in for access.
No Supplementary Data.
No Article Media
No Metrics

Keywords: HG-AAS; SW-CSV; arsenite; iron interferences

Document Type: Research Article

Affiliations: 1: Groupement de Recherche Eau Sol Environnement (GRESE), Universite de Limoges, Faculte des Sciences et Techniques, 123 Avenue Albert Thomas 87060 Limoges, France 2: Groupement de Recherche Eau Sol Environnement (GRESE), Universite de Limoges, ENSIL, Parc d'Ester Technopole, 16 rue Atlantis 87068 Limoges, France

Publication date: January 1, 2011

More about this publication?
  • Access Key
  • Free content
  • Partial Free content
  • New content
  • Open access content
  • Partial Open access content
  • Subscribed content
  • Partial Subscribed content
  • Free trial content
Cookie Policy
X
Cookie Policy
Ingenta Connect website makes use of cookies so as to keep track of data that you have filled in. I am Happy with this Find out more