Selection of internal standards for the determination of major and minor elements in silicate rocks and limestones by laser ablation inductively coupled plasma atomic emission spectrometry

KANICKÝ, Viktor a Jean - Michel MERMET. Selection of internal standards for the determination of major and minor elements in silicate rocks and limestones by laser ablation inductively coupled plasma atomic emission spectrometry. Applied Spectroscopy. USA: Society Appl. Spectroscopy, 1997, roč. 51, č. 3, s. 332-336. ISSN 0003-7028.

Základní údaje

Originální název

Selection of internal standards for the determination of major and minor elements in silicate rocks and limestones by laser ablation inductively coupled plasma atomic emission spectrometry

Autoři

KANICKÝ, Viktor (203 Česká republika, garant) a Jean - Michel MERMET (250 Francie)

Vydání

Applied Spectroscopy, USA, Society Appl. Spectroscopy, 1997, 0003-7028

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Další údaje

Jazyk

angličtina

Typ výsledku

Článek v odborném periodiku

Obor

10406 Analytical chemistry

Stát vydavatele

Spojené státy

Utajení

není předmětem státního či obchodního tajemství

Impakt faktor

Impact factor: 1.848

Organizační jednotka

Přírodovědecká fakulta

UT WoS

A1997WT58600007

Klíčová slova anglicky

Inductively coupled plasma; Atomic emission spectrometry; Laser ablation; Geological samples; Internal standardization

Štítky

atomic emission spectrometry, geological samples, inductively coupled plasma, Internal standardization, laser ablation

Příznaky

Recenzováno

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Anotace

V originále

Use of contained and added internal standards has been compared in laser ablation ICP-AES of silicate rocks and limestones to improv e both precision and accuracy. Glass disks obtained by fusion of rocks with lithium tetraborate were sampled by means of a Q-switched Nd:YAG laser (355 nm, 10 Hz, 10 mJ per shot) and analyzed with an ICP emission spectrometer equipped with a segmented charge-coupled device detector. The Si and Ca major elements of the silicate and limestone samples, respectively, were compared with the Li and B Bus elements for internal standardization. A 2- to 5-times improvement in the percent relative standard deviation (%RSD) of the repeatability was found, irrespective of the internal standard, leading to a repeatability in the 1-2% RSD range. On the basis of the use of Li and B as internal standards, linear calibration graphs were obtained for Si, Al, Ca, Mg, Fe, Ti, Na, and K by using reference geological materials. The possibility of using Bus elements overcomes the need to have prior knowledge of the concentration when a contained element is being used as an internal standard.

Česky

Use of contained and added internal standards has been compared in laser ablation ICP-AES of silicate rocks and limestones to improv e both precision and accuracy. Glass disks obtained by fusion of rocks with lithium tetraborate were sampled by means of a Q-switched Nd:YAG laser (355 nm, 10 Hz, 10 mJ per shot) and analyzed with an ICP emission spectrometer equipped with a segmented charge-coupled device detector. The Si and Ca major elements of the silicate and limestone samples, respectively, were compared with the Li and B Bus elements for internal standardization. A 2- to 5-times improvement in the percent relative standard deviation (%RSD) of the repeatability was found, irrespective of the internal standard, leading to a repeatability in the 1-2% RSD range. On the basis of the use of Li and B as internal standards, linear calibration graphs were obtained for Si, Al, Ca, Mg, Fe, Ti, Na, and K by using reference geological materials. The possibility of using Bus elements overcomes the need to have prior knowledge of the concentration when a contained element is being used as an internal standard.