Direct on-line continuous supercritical fluid extraction and HPLC of aqueous pyrethrins solutions.

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68081715%3A_____%2F03%3A25033001" target="_blank" >RIV/68081715:_____/03:25033001 - isvavai.cz</a>

Výsledek na webu

—

DOI - Digital Object Identifier

—

Jazyk výsledku

angličtina

Název v původním jazyce

Direct on-line continuous supercritical fluid extraction and HPLC of aqueous pyrethrins solutions.

Popis výsledku v původním jazyce

A new method, employing supercritical fluid extraction (SFE) connected on-line with high performance liquid chromatography (HPLC), was developed for the determination of pyrethrins and piperonylbutoxide in aqueous solutions. The principle of the laboratory-made device for SFE is based on the low mutual solubility of water and supercritical (liquid) CO2. This device works in continuous mode that offers extraction of unlimited sample volumes. Different extraction temperatures and pressures were tested tofind optimum extraction conditions. The addition of organic modifier and inorganic salt to the water sample to increase extraction recovery was investigated. The method was evaluated and it was applied for the extraction of aqueous samples spiked with commercial insecticides. The working concentration range of the method was from the limit of quantification (0.1 gL-1) to the solubility of the analytes in water.

Název v anglickém jazyce

Direct on-line continuous supercritical fluid extraction and HPLC of aqueous pyrethrins solutions.

Popis výsledku anglicky

A new method, employing supercritical fluid extraction (SFE) connected on-line with high performance liquid chromatography (HPLC), was developed for the determination of pyrethrins and piperonylbutoxide in aqueous solutions. The principle of the laboratory-made device for SFE is based on the low mutual solubility of water and supercritical (liquid) CO2. This device works in continuous mode that offers extraction of unlimited sample volumes. Different extraction temperatures and pressures were tested tofind optimum extraction conditions. The addition of organic modifier and inorganic salt to the water sample to increase extraction recovery was investigated. The method was evaluated and it was applied for the extraction of aqueous samples spiked with commercial insecticides. The working concentration range of the method was from the limit of quantification (0.1 gL-1) to the solubility of the analytes in water.

Druh

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

CEP obor

CB - Analytická chemie, separace

OECD FORD obor

—

Projekt

<a href="/cs/project/IBS4031110" target="_blank" >IBS4031110: Výzkum a vývoj metodiky a instrumentace přímé extrakce vodných roztoků nadkritickým oxidem uhličitým</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)<br>Z - Vyzkumny zamer (s odkazem do CEZ)

Rok uplatnění

2003

Kód důvěrnosti údajů

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

Název periodika

Analytical Chemistry

ISSN

0003-2700

e-ISSN

—

Svazek periodika

75

Číslo periodika v rámci svazku

6

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

6

Strana od-do

1430-1435

Kód UT WoS článku

—

EID výsledku v databázi Scopus

—