A bare graphite microelectrode was used for the anodic stripping voltammetry determination of traces and ultratraces of Tl+ ion in aqueous solutions at pH 3.5, in the presence of a 1×10−3 mol L−1 EDTA solution. The proposed method, validated and tested at ultratrace level in environmental water samples, showed low detection and quantification limits (0.01 and 0.03gL−1, respectively) and excellent capability to determine the analyte also in the presence of a very high excess of interfering ions, i.e. 2200:1 and 10,000:1 (w:w) for Pb2+ and Cd2+, respectively. Furthermore, the wide linearity range, the absence of bias, the low time required for each measurement and the low cost of theinstrumentation needed are additional factors supporting the application of such a method as a screening tool in the direct determination of thallium ionic species in environmental samples.

Anodic stripping voltammetric determination of traces and ultratraces of thallium at a graphite microelectrode. Method development and application to environmental waters / N., Spano; A., Panzanelli; P. C., Piu; M. I., Pilo; G., Sanna; Seeber, Renato; A., Tapparo. - In: ANALYTICA CHIMICA ACTA. - ISSN 0003-2670. - STAMPA. - 553:(2005), pp. 201-207.

Anodic stripping voltammetric determination of traces and ultratraces of thallium at a graphite microelectrode. Method development and application to environmental waters

SEEBER, Renato;
2005

Abstract

A bare graphite microelectrode was used for the anodic stripping voltammetry determination of traces and ultratraces of Tl+ ion in aqueous solutions at pH 3.5, in the presence of a 1×10−3 mol L−1 EDTA solution. The proposed method, validated and tested at ultratrace level in environmental water samples, showed low detection and quantification limits (0.01 and 0.03gL−1, respectively) and excellent capability to determine the analyte also in the presence of a very high excess of interfering ions, i.e. 2200:1 and 10,000:1 (w:w) for Pb2+ and Cd2+, respectively. Furthermore, the wide linearity range, the absence of bias, the low time required for each measurement and the low cost of theinstrumentation needed are additional factors supporting the application of such a method as a screening tool in the direct determination of thallium ionic species in environmental samples.
553
201
207
Anodic stripping voltammetric determination of traces and ultratraces of thallium at a graphite microelectrode. Method development and application to environmental waters / N., Spano; A., Panzanelli; P. C., Piu; M. I., Pilo; G., Sanna; Seeber, Renato; A., Tapparo. - In: ANALYTICA CHIMICA ACTA. - ISSN 0003-2670. - STAMPA. - 553:(2005), pp. 201-207.
N., Spano; A., Panzanelli; P. C., Piu; M. I., Pilo; G., Sanna; Seeber, Renato; A., Tapparo
File in questo prodotto:
Non ci sono file associati a questo prodotto.
Pubblicazioni consigliate

Caricamento pubblicazioni consigliate

Licenza Creative Commons
I metadati presenti in IRIS UNIMORE sono rilasciati con licenza Creative Commons CC0 1.0 Universal, mentre i file delle pubblicazioni sono rilasciati con licenza Attribuzione 4.0 Internazionale (CC BY 4.0), salvo diversa indicazione.
In caso di violazione di copyright, contattare Supporto Iris

Utilizza questo identificativo per citare o creare un link a questo documento: https://hdl.handle.net/11380/621557
Citazioni
  • ???jsp.display-item.citation.pmc??? ND
  • Scopus 37
  • ???jsp.display-item.citation.isi??? 37
social impact