Comparison of some analytical performance characteristic in inductively coupled plasma spectrometry of platinum group metals and gold

KANICKÝ, Viktor, Vítězslav OTRUBA and Jean-Michel MERMET. Comparison of some analytical performance characteristic in inductively coupled plasma spectrometry of platinum group metals and gold. Talanta. Amsterdam: Elsevier Science, 1999, vol. 1999, No 4, p. 859-866, 7 pp. ISSN 0039-9140.

Basic information

• Original name: Comparison of some analytical performance characteristic in inductively coupled plasma spectrometry of platinum group metals and gold
• Authors: KANICKÝ, Viktor (203 Czech Republic, guarantor), Vítězslav OTRUBA (203 Czech Republic) and Jean-Michel MERMET (250 France).
• Edition: Talanta, Amsterdam, Elsevier Science, 1999, 0039-9140.

Other information

• Original language: English
• Type of outcome: Article in a journal
• Field of Study: 10406 Analytical chemistry
• Country of publisher: Netherlands
• Confidentiality degree: is not subject to a state or trade secret
• Impact factor: Impact factor: 1.185
• RIV identification code: RIV/00216224:14310/99:00000888
• Organization unit: Faculty of Science
• Keywords in English: noble metals; platinum; gold; inductively coupled plasma spectrometry
• Tags: gold, inductively coupled plasma spectrometry, noble metals, platinum
• Tags: International impact, Reviewed

Abstract

The limits of detection, precision and matrix effects in the inductively coupled plasma spectrometry of platinum group metals (PGMs) and gold were measured and evaluated for four ICP-AES and one ICP-MS instrument. The sample matrix was a cationic surfactant used for the PGMs and gold preconcentration on a modified silica gel (C18). A sorption of ion associates of PGMs and gold chlorocomplexes with the cation of onium salt N(1-carbaethoxypentadecyl)-trimethyl ammonium bromide was considered. The calibration curves, limits of detection and matrix effects were evaluated in the presence of 0.003 mol dm(-3) of onium salt (1.3 mg cm(-3)) and 0.1 mol dm(-3) HCl. The values of limits of detection (3 sigma(bl)) of PGMs for all axial ICP instruments were mostly below 10 ng cm(-3). Lateral observation on dual view ICP instrument yielded only 3 times higher detection limits in comparison to the axial mode of the same spectrometer and the detection limits for ICP-MS instrument were on the levels of units or tens of pg cm(-3). These limits of detection did not significantly differ from values obtained with pure solutions. Matrix effects in the presence of onium salt did not exceed 12% depression in the analytical signals. Besides the coefficients of correlation, the uncertainties on centroids of concentrations were calculated for calibration graphs obtained by linear regression. (C) 1999 Elsevier Science B.V. All rights reserved.

Abstract (in Czech)

The limits of detection, precision and matrix effects in the inductively coupled plasma spectrometry of platinum group metals (PGMs) and gold were measured and evaluated for four ICP-AES and one ICP-MS instrument. The sample matrix was a cationic surfactant used for the PGMs and gold preconcentration on a modified silica gel (C18). A sorption of ion associates of PGMs and gold chlorocomplexes with the cation of onium salt N(1-carbaethoxypentadecyl)-trimethyl ammonium bromide was considered. The calibration curves, limits of detection and matrix effects were evaluated in the presence of 0.003 mol dm(-3) of onium salt (1.3 mg cm(-3)) and 0.1 mol dm(-3) HCl. The values of limits of detection (3 sigma(bl)) of PGMs for all axial ICP instruments were mostly below 10 ng cm(-3). Lateral observation on dual view ICP instrument yielded only 3 times higher detection limits in comparison to the axial mode of the same spectrometer and the detection limits for ICP-MS instrument were on the levels of units or tens of pg cm(-3). These limits of detection did not significantly differ from values obtained with pure solutions. Matrix effects in the presence of onium salt did not exceed 12% depression in the analytical signals. Besides the coefficients of correlation, the uncertainties on centroids of concentrations were calculated for calibration graphs obtained by linear regression. (C) 1999 Elsevier Science B.V. All rights reserved.

Links

• MSM 143100003, plan (intention): Name: Studium plazmochemických reakcí v neizotermickém nízkoteplotním plazmatu a jeho interakcí s povrchem pevných látek

Investor: Ministry of Education, Youth and Sports of the CR, Study of plasmachemical reactions in non-isothermic low pressure plasma and its interaction with the surface of solid substrates

• VS97020, research and development project: Name: Laboratoř plazmových zdrojů pro chemickou analýzu

Investor: Ministry of Education, Youth and Sports of the CR, Laboratory of plasma sources for chemical analysis