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

KANICKÝ, Viktor, Vítězslav OTRUBA a Jean-Michel MERMET. Comparison of some analytical performance characteristic in inductively coupled plasma spectrometry of platinum group metals and gold. Online. Talanta. Amsterdam: Elsevier Science, 1999, roč. 1999, č. 4, s. 859-866, 7 s. ISSN 0039-9140. [citováno 2024-04-24]

Základní údaje

• Originální název: Comparison of some analytical performance characteristic in inductively coupled plasma spectrometry of platinum group metals and gold
• Autoři: KANICKÝ, Viktor (203 Česká republika, garant), Vítězslav OTRUBA (203 Česká republika) a Jean-Michel MERMET (250 Francie)
• Vydání: Talanta, Amsterdam, Elsevier Science, 1999, 0039-9140.

Další údaje

• Originální jazyk: angličtina
• Typ výsledku: Článek v odborném periodiku
• Obor: 10406 Analytical chemistry
• Stát vydavatele: Nizozemské království
• Utajení: není předmětem státního či obchodního tajemství
• Impakt faktor: Impact factor: 1.185
• Kód RIV: RIV/00216224:14310/99:00000888
• Organizační jednotka: Přírodovědecká fakulta
• Klíčová slova anglicky: noble metals; platinum; gold; inductively coupled plasma spectrometry
• Štítky: gold, inductively coupled plasma spectrometry, noble metals, platinum
• Příznaky: Mezinárodní význam, Recenzováno

Anotace

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.

Anotace česky

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.

Návaznosti

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