1999
Comparison of some analytical performance characteristic in inductively coupled plasma spectrometry of platinum group metals and gold
KANICKÝ, Viktor, Vítězslav OTRUBA a Jean-Michel MERMETZákladní 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
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
Příznaky
Mezinárodní význam, Recenzováno
Změněno: 29. 6. 2007 10:13, prof. RNDr. Viktor Kanický, DrSc.
V originále
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.
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
| MSM 143100003, záměr |
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| VS97020, projekt VaV |
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