UV a IR laserová ablace organických práškových materiálů - příklad: ICP-OES s laserovou ablací spikovaných odlévaných tablet kojeneckého sušeného mléka

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216224%3A14310%2F06%3A00018199" target="_blank" >RIV/00216224:14310/06:00018199 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

UV and IR laser ablation study of natural organic powdered materials?an example: ICP-OES with laser ablation of spiked infant formula cast pellets

Popis výsledku v původním jazyce

Laser ablation (LA) sample introduction into inductively coupled plasma optical emission spectrometry (ICP-OES) was used for powdered infant food formula being representative of samples with an organic matrix. Milk samples enriched with eight naturally occurring elements were presented for LA-ICP-OES experiments as cast epoxy resin disks. For Ca, Cu, Fe, Mg and Zn, a performance of IR (1064 nm) and UV (266 nm) ablation was compared in a fixed spot mode (UV) and in a scanning mode (both UV and IR). Signal vs. content dependences proved to be linear both with and w/o the internal standard Ca (IS). Using the IS the linear regression parameters for the scanning mode were improved for both UV and IR ablation. The UV fixed spot ablation provided the closestcorrelation and so, except for Cu (low content), repeatability for all elements of interest did not exceed 10% RSD. Lowest determinable quantities were 0.06% Ca, 0.008% Mg, 0.0005% Cu, 0.001% Fe and 0.0008% Zn. Condensation of Zn on eject

Název v anglickém jazyce

UV and IR laser ablation study of natural organic powdered materials?an example: ICP-OES with laser ablation of spiked infant formula cast pellets

Popis výsledku anglicky

Laser ablation (LA) sample introduction into inductively coupled plasma optical emission spectrometry (ICP-OES) was used for powdered infant food formula being representative of samples with an organic matrix. Milk samples enriched with eight naturally occurring elements were presented for LA-ICP-OES experiments as cast epoxy resin disks. For Ca, Cu, Fe, Mg and Zn, a performance of IR (1064 nm) and UV (266 nm) ablation was compared in a fixed spot mode (UV) and in a scanning mode (both UV and IR). Signal vs. content dependences proved to be linear both with and w/o the internal standard Ca (IS). Using the IS the linear regression parameters for the scanning mode were improved for both UV and IR ablation. The UV fixed spot ablation provided the closestcorrelation and so, except for Cu (low content), repeatability for all elements of interest did not exceed 10% RSD. Lowest determinable quantities were 0.06% Ca, 0.008% Mg, 0.0005% Cu, 0.001% Fe and 0.0008% Zn. Condensation of Zn on eject

Druh

J_x - Nezařazeno - Článek v odborném periodiku (Jimp, Jsc a Jost)

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

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Projekt

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Návaznosti

Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2006

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Journal of analytical atomic spectrometry

ISSN

0267-9477

e-ISSN

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Svazek periodika

21/2006

Číslo periodika v rámci svazku

9

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

4

Strana od-do

974-977

Kód UT WoS článku

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EID výsledku v databázi Scopus

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