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@article{202638, author = {Kanický, Viktor and Mermet, JeanandMichel}, article_location = {Berlin}, article_number = {3}, keywords = {Laser ablation; Inductively coupled plasma atomic emission spectrometry; geology; silicates; carbonates; fused pellets; lithiummetaborate; internal standards}, language = {eng}, issn = {0937-0633}, journal = {Fresenius Journal of Analytical Chemistry}, note = {Grant Agency of the Czech Republic 203/94/0511}, title = {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}, volume = {363}, year = {1999} }
TY - JOUR ID - 202638 AU - Kanický, Viktor - Mermet, Jean-Michel PY - 1999 TI - 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 JF - Fresenius Journal of Analytical Chemistry VL - 363 IS - 3 SP - 294 EP - 294 PB - Springer-Verlag SN - 09370633 N1 - Grant Agency of the Czech Republic 203/94/0511 KW - Laser ablation KW - Inductively coupled plasma atomic emission spectrometry KW - geology KW - silicates KW - carbonates KW - fused pellets KW - lithiummetaborate KW - internal standards N2 - 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. ER -
KANICKÝ, Viktor and 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. \textit{Fresenius Journal of Analytical Chemistry}. Berlin: Springer-Verlag, 1999, vol.~363, No~3, p.~294-299. ISSN~0937-0633.
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