KANICKÝ, Viktor a Jean-Michel MERMET. Use of a single calibration graph for the determination of major elements in geological materials by laser ablation inductively coupled plasma atomic emission spectrometry with added internal standards. Fresenius Journal of Analytical Chemistry. Berlin: Springer-Verlag, 1999, roč. 363, č. 3, s. 294-299. ISSN 0937-0633.
Další formáty:   BibTeX LaTeX RIS
Základní údaje
Originální název Use of a single calibration graph for the determination of major elements in geological materials by laser ablation inductively coupled plasma atomic emission spectrometry with added internal standards
Autoři KANICKÝ, Viktor (203 Česká republika, garant) a Jean-Michel MERMET (250 Francie).
Vydání Fresenius Journal of Analytical Chemistry, Berlin, Springer-Verlag, 1999, 0937-0633.
Další údaje
Originální jazyk angličtina
Typ výsledku Článek v odborném periodiku
Obor 10406 Analytical chemistry
Stát vydavatele Německo
Utajení není předmětem státního či obchodního tajemství
Impakt faktor Impact factor: 1.428
Kód RIV RIV/00216224:14310/99:00000870
Organizační jednotka Přírodovědecká fakulta
UT WoS 000078731000016
Klíčová slova anglicky Laser ablation; Inductively coupled plasma atomic emission spectrometry; geology; silicates; carbonates; fused pellets; lithiummetaborate; internal standards
Štítky carbonates, fused pellets, Geology, INTERNAL STANDARDS, laser ablation, lithiummetaborate, silicates
Příznaky Mezinárodní význam, Recenzováno
Změnil Změnil: prof. RNDr. Viktor Kanický, DrSc., učo 408. Změněno: 29. 6. 2007 10:01.
Anotace
The possibility of internal standardisation in laser ablation inductively coupled plasma atomic emission spectrometry (LA-ICP-AES) of geological materials by added Sc2O3 and Y2O3 has been examined to cover the wide range of concentrations of major and minor constituents both in silicate rocks and limestones. A Nd:YAG laser (355 nm, 10 Hz, 10 mJ per shot) was used for the ablation of discs obtained by fusion of the mixture of samples and oxides of Sc and Y with lithium tetraborate. The flux/sample ratio was in the range from 6 to 10. The contents of analytes were within the concentration range from hundredths to tens of percentage. The trace elements copper and nickel were studied, too. An ICP emission spectrometer OPTIMA 3000 DV was used for the measurement of Si, Al, Ca, Mg, Sr, Ba. Fe, Ti, Mn, Ni, Cu. Na and K analyte lines and Y and Sc reference lines in the axial observation mode. The long-term and the short-term repeatability of measurement were improved by employing scandium or yttrium internal references lines for the above analytes from 6% to 1.5% of RSD and from 2.4% to 1.0% of RSD, respectively. The correlation of signals with concentrations was improved in terms of the correlation coefficient r from 0.90-0.97 to 0.98-0.998 and the relative uncertainty on the centroid of concentrations was improved 2-3 times. A single calibration graph covering the concentration range both in silicates and carbonates is possible for each of elements. as the matrix effects are compensated for by internal standards and the excess of Li2B4O7.
Anotace česky
The possibility of internal standardisation in laser ablation inductively coupled plasma atomic emission spectrometry (LA-ICP-AES) of geological materials by added Sc2O3 and Y2O3 has been examined to cover the wide range of concentrations of major and minor constituents both in silicate rocks and limestones. A Nd:YAG laser (355 nm, 10 Hz, 10 mJ per shot) was used for the ablation of discs obtained by fusion of the mixture of samples and oxides of Sc and Y with lithium tetraborate. The flux/sample ratio was in the range from 6 to 10. The contents of analytes were within the concentration range from hundredths to tens of percentage. The trace elements copper and nickel were studied, too. An ICP emission spectrometer OPTIMA 3000 DV was used for the measurement of Si, Al, Ca, Mg, Sr, Ba. Fe, Ti, Mn, Ni, Cu. Na and K analyte lines and Y and Sc reference lines in the axial observation mode. The long-term and the short-term repeatability of measurement were improved by employing scandium or yttrium internal references lines for the above analytes from 6% to 1.5% of RSD and from 2.4% to 1.0% of RSD, respectively. The correlation of signals with concentrations was improved in terms of the correlation coefficient r from 0.90-0.97 to 0.98-0.998 and the relative uncertainty on the centroid of concentrations was improved 2-3 times. A single calibration graph covering the concentration range both in silicates and carbonates is possible for each of elements. as the matrix effects are compensated for by internal standards and the excess of Li2B4O7.
Návaznosti
GA203/94/0511, projekt VaVNázev: Studium interakce laserového záření s deponovanými keramickými vrstvami.
Investor: Grantová agentura ČR, Standardní projekty
VytisknoutZobrazeno: 18. 6. 2021 16:54