Multi-element Analysis of Milk by ICP-oa-TOF-MS after Precipitation of Calcium and Proteins by Oxalic and Nitric Acid

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F13%3A39894792" target="_blank" >RIV/00216275:25310/13:39894792 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.talanta.2012.12.015" target="_blank" >http://dx.doi.org/10.1016/j.talanta.2012.12.015</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.talanta.2012.12.015" target="_blank" >10.1016/j.talanta.2012.12.015</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Multi-element Analysis of Milk by ICP-oa-TOF-MS after Precipitation of Calcium and Proteins by Oxalic and Nitric Acid

Popis výsledku v původním jazyce

In this work a simple technique employing oxalic and nitric acid to cow's milk samples prior to analysis by inductively coupled plasma orthogonal acceleration time-of-flight mass spectrometry (ICP-oa-TOF-MS) was introduced. After the precipitation of calcium and proteins via oxalic and nitric acid, respectively, the resulting liquid phase was aspirated with a concentric glass nebulizer for ICP-TOF-MS determination of trace elements. Precipitation of proteins is essential for better separation of solid and liquid phase of modified samples. Separation of calcium as a precipitated non-soluble oxalate enables the elimination of spectral interferences originating from different calcium containing species like 40Ca35Cl+, 40Ca37Cl+, 43Ca16O+, 40Ca18O+, 44Ca16O+, 43Ca16O1H+ onto the determination of As, Se, Co and Ni whose assay is more difficult when using conventional quadrupole instruments. High detection capability is further an advantage as the approach enables the analysis without diluti

Název v anglickém jazyce

Multi-element Analysis of Milk by ICP-oa-TOF-MS after Precipitation of Calcium and Proteins by Oxalic and Nitric Acid

Popis výsledku anglicky

In this work a simple technique employing oxalic and nitric acid to cow's milk samples prior to analysis by inductively coupled plasma orthogonal acceleration time-of-flight mass spectrometry (ICP-oa-TOF-MS) was introduced. After the precipitation of calcium and proteins via oxalic and nitric acid, respectively, the resulting liquid phase was aspirated with a concentric glass nebulizer for ICP-TOF-MS determination of trace elements. Precipitation of proteins is essential for better separation of solid and liquid phase of modified samples. Separation of calcium as a precipitated non-soluble oxalate enables the elimination of spectral interferences originating from different calcium containing species like 40Ca35Cl+, 40Ca37Cl+, 43Ca16O+, 40Ca18O+, 44Ca16O+, 43Ca16O1H+ onto the determination of As, Se, Co and Ni whose assay is more difficult when using conventional quadrupole instruments. High detection capability is further an advantage as the approach enables the analysis without diluti

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

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2013

Kód důvěrnosti údajů

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

Název periodika

Talanta

ISSN

0039-9140

e-ISSN

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Svazek periodika

106

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

7

Strana od-do

66-72

Kód UT WoS článku

000319088600009

EID výsledku v databázi Scopus

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