Automated in-syringe single-drop head-space micro-extraction applied to the determination of ethanol in wine samples

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11160%2F14%3A10281833" target="_blank" >RIV/00216208:11160/14:10281833 - isvavai.cz</a>

Výsledek na webu

<a href="http://www.sciencedirect.com/science/article/pii/S0003267014004693" target="_blank" >http://www.sciencedirect.com/science/article/pii/S0003267014004693</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.aca.2014.04.031" target="_blank" >10.1016/j.aca.2014.04.031</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Automated in-syringe single-drop head-space micro-extraction applied to the determination of ethanol in wine samples

Popis výsledku v původním jazyce

A novel approach of head-space single-drop micro-extraction applied to the determination of ethanol in wine is presented. For the first time, the syringe of an automated syringe pump was used as an extraction chamber of adaptable size for a volatile analyte. This approach enabled to apply negative pressure during the enrichment step, which favored the evaporation of the analyte. Placing a slowly spinning magnetic stirring bar inside the syringe, effective syringe cleaning as well as mixing of the samplewith buffer solution to suppress the interference of acetic acid was achieved. Ethanol determination was based on the reduction of a single drop of 3 mmol L-1 potassium dichromate dissolved in 8 mol L-1 sulfuric acid. The drop was positioned in the syringe inlet in the head-space above the sample with posterior spectrophotometric quantification. The entire procedure was carried out automatically using a simple sequential injection analyzer system. One analysis required less than 5 min i

Název v anglickém jazyce

Automated in-syringe single-drop head-space micro-extraction applied to the determination of ethanol in wine samples

Popis výsledku anglicky

A novel approach of head-space single-drop micro-extraction applied to the determination of ethanol in wine is presented. For the first time, the syringe of an automated syringe pump was used as an extraction chamber of adaptable size for a volatile analyte. This approach enabled to apply negative pressure during the enrichment step, which favored the evaporation of the analyte. Placing a slowly spinning magnetic stirring bar inside the syringe, effective syringe cleaning as well as mixing of the samplewith buffer solution to suppress the interference of acetic acid was achieved. Ethanol determination was based on the reduction of a single drop of 3 mmol L-1 potassium dichromate dissolved in 8 mol L-1 sulfuric acid. The drop was positioned in the syringe inlet in the head-space above the sample with posterior spectrophotometric quantification. The entire procedure was carried out automatically using a simple sequential injection analyzer system. One analysis required less than 5 min i

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

<a href="/cs/project/EE2.3.30.0022" target="_blank" >EE2.3.30.0022: Podpora vytváření, rozvoje a mobility kvalitních výzkumně-vývojových týmů na Univerzitě Karlově</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2014

Kód důvěrnosti údajů

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

Název periodika

Analytica Chimica Acta

ISSN

0003-2670

e-ISSN

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Svazek periodika

828

Číslo periodika v rámci svazku

May

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

8

Strana od-do

53-60

Kód UT WoS článku

000336336900007

EID výsledku v databázi Scopus

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