Bell-shaped extraction device assisted liquid-liquid microextraction technique and its optimization using response-surface methodology

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F12%3A10126438" target="_blank" >RIV/00216208:11310/12:10126438 - isvavai.cz</a>

Výsledek na webu

<a href="http://dx.doi.org/10.1016/j.chroma.2012.01.069" target="_blank" >http://dx.doi.org/10.1016/j.chroma.2012.01.069</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.chroma.2012.01.069" target="_blank" >10.1016/j.chroma.2012.01.069</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Bell-shaped extraction device assisted liquid-liquid microextraction technique and its optimization using response-surface methodology

Popis výsledku v původním jazyce

We have developed a new microextraction technique for equilibrium, non-exhaustive analyte pre-concentration from aqueous solutions into organic solvents lighter than water. The key point of the method is application of specially designed and optimized bell-shaped extraction device, BSED. The technique has been tested and applied to the preconcentration of selected volatile and semi volatile compounds which were determined by gas chromatography/mass spectrometry in spiked water samples. The significant parameters of the extraction have been found using chemometric procedures and these parameters were optimized using the central composite design (CCD) for two solvents. The analyte preconcentration factors were in a range from 8.3 to 161.8 (repeatabilityfrom 7 to 14%) for heptane, and 50.0-105.0 (repeatability from 0 to 5%) for tert-butyl acetate. The reproducibility of the technique was within 1-8%. The values of limits of detection and determination were 0.1-3.3 ng mL(-1) for heptane a

Název v anglickém jazyce

Bell-shaped extraction device assisted liquid-liquid microextraction technique and its optimization using response-surface methodology

Popis výsledku anglicky

We have developed a new microextraction technique for equilibrium, non-exhaustive analyte pre-concentration from aqueous solutions into organic solvents lighter than water. The key point of the method is application of specially designed and optimized bell-shaped extraction device, BSED. The technique has been tested and applied to the preconcentration of selected volatile and semi volatile compounds which were determined by gas chromatography/mass spectrometry in spiked water samples. The significant parameters of the extraction have been found using chemometric procedures and these parameters were optimized using the central composite design (CCD) for two solvents. The analyte preconcentration factors were in a range from 8.3 to 161.8 (repeatabilityfrom 7 to 14%) for heptane, and 50.0-105.0 (repeatability from 0 to 5%) for tert-butyl acetate. The reproducibility of the technique was within 1-8%. The values of limits of detection and determination were 0.1-3.3 ng mL(-1) for heptane a

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

Rok uplatnění

2012

Kód důvěrnosti údajů

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

Název periodika

Journal of Chromatography A

ISSN

0021-9673

e-ISSN

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Svazek periodika

1230

Číslo periodika v rámci svazku

March

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

6

Strana od-do

24-29

Kód UT WoS článku

000301959700004

EID výsledku v databázi Scopus

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