Carbon microparticles as a physical carrier for ETV-ICP-MS

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216275%3A25310%2F19%3A39914891" target="_blank" >RIV/00216275:25310/19:39914891 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0039914019306708" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0039914019306708</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.talanta.2019.06.045" target="_blank" >10.1016/j.talanta.2019.06.045</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Carbon microparticles as a physical carrier for ETV-ICP-MS

Popis výsledku v původním jazyce

In this study, carbon microparticles (CMs) as a physical carrier to enhance the analyte transport efficiency for inductively coupled plasma mass spectrometry connected with electrothermal vaporization (ETV-ICP-MS) are proposed. Carbon microparticles mixed with samples or calibration standard solutions were dosed as a slurry into the graphite furnace. The optimization of working conditions was done for the standard solution 0.5 mu g L-1 of Au and Tl. The pyrolysis and vaporization temperatures were 500 and 2700 degrees C for Au and 400 and 1900 degrees C for Tl. The optimized CMs concentration was 1 g L-1 for Au and 2.5 g L-1 for Tl. For the quantification, external calibration standard solutions were used. The result obtained for Au in the digested CRM GBW 07601 (the informatory value 2.1 +/- 2 mu g kg(-1)) was 2.2 +/- 0.1 mu g kg(-1). The result for Tl in the digested CRM BCR 679 (the certified value 3 +/- 0.3 mu g kg(-1)) was 3.2 +/- 0.2 mu g kg(-1) and in the slurry 2.7 +/- 0.1 mu g kg(-1). The result for Tl in the CRM GBW 10052 (the certified value 57 +/- 11 mu g kg(-1)) was 51 +/- 3 mu g kg(-1). The instrumental limits of detection were 0.016 ng L-1 for Au and 0.026 ng L-1 for Tl. The recoveries and repeatabilities measured on calibration standards were in the range 99-100% and 0.2-2.3% for Au and 100-111% and 2.9-6.7% for Tl.

Název v anglickém jazyce

Carbon microparticles as a physical carrier for ETV-ICP-MS

Popis výsledku anglicky

In this study, carbon microparticles (CMs) as a physical carrier to enhance the analyte transport efficiency for inductively coupled plasma mass spectrometry connected with electrothermal vaporization (ETV-ICP-MS) are proposed. Carbon microparticles mixed with samples or calibration standard solutions were dosed as a slurry into the graphite furnace. The optimization of working conditions was done for the standard solution 0.5 mu g L-1 of Au and Tl. The pyrolysis and vaporization temperatures were 500 and 2700 degrees C for Au and 400 and 1900 degrees C for Tl. The optimized CMs concentration was 1 g L-1 for Au and 2.5 g L-1 for Tl. For the quantification, external calibration standard solutions were used. The result obtained for Au in the digested CRM GBW 07601 (the informatory value 2.1 +/- 2 mu g kg(-1)) was 2.2 +/- 0.1 mu g kg(-1). The result for Tl in the digested CRM BCR 679 (the certified value 3 +/- 0.3 mu g kg(-1)) was 3.2 +/- 0.2 mu g kg(-1) and in the slurry 2.7 +/- 0.1 mu g kg(-1). The result for Tl in the CRM GBW 10052 (the certified value 57 +/- 11 mu g kg(-1)) was 51 +/- 3 mu g kg(-1). The instrumental limits of detection were 0.016 ng L-1 for Au and 0.026 ng L-1 for Tl. The recoveries and repeatabilities measured on calibration standards were in the range 99-100% and 0.2-2.3% for Au and 100-111% and 2.9-6.7% for Tl.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/EF16_013%2F0001829" target="_blank" >EF16_013/0001829: Modernizace a upgrade infrastruktury CEMNAT</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2019

Kód důvěrnosti údajů

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

Název periodika

Talanta

ISSN

0039-9140

e-ISSN

—

Svazek periodika

204

Číslo periodika v rámci svazku

November

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

555-560

Kód UT WoS článku

000480664200068

EID výsledku v databázi Scopus

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