Development of ultrasound-assisted emulsification microextraction for the determination of seven pesticides in apple juice by gas chromatography–mass spectrometry
| Autor: | Vasilios A. Sakkas, Triantafyllos A. Albanis, Ioanna P. Kaveli |
|---|---|
| Jazyk: | angličtina |
| Rok vydání: | 2015 |
| Předmět: |
Analyte
Chromatography Endocrine disruptor pesticides Chemistry Health Toxicology and Mutagenesis Extraction (chemistry) Ultrasound-assisted emulsification microextraction Public Health Environmental and Occupational Health Soil Science Mass spectrometry Pollution Analytical Chemistry Solvent chemistry.chemical_compound Gas chromatography–mass spectrometry Ionic strength Food Environmental Chemistry Procymidone Gas chromatography Waste Management and Disposal Water Science and Technology |
| Popis: | Α simple, relatively rapid, sensitive and cost-effective method based on ultrasound-assisted emulsification microextraction (USAEME) followed by gas chromatography coupled with mass spectrometry has been developed for the determination of seven endocrine disruptor pesticides (chlorpyrifos, deltamethrin, dimethoate, fenitrothion, malathion, pendimethalin and procymidone) in apple juice. This approach is based on the emulsification of organic extraction solvent in a diluted apple juice sample by ultrasound radiation and further separation of both liquids phases by centrifugation. The influence of the different parameters affecting the procedure (extraction solvent, extraction solvent volume, ultrasound time, centrifugation time, ionic strength and pH) was evaluated in order to optimise the efficiency of the extraction process. Target analytes were extracted from a 0.5 g apple juice sample that was diluted by 10 times with aqueous buffer solution (pH 7). The optimised USAEME procedure used 100 μL of chlorofo... |
| Databáze: | OpenAIRE |
| Externí odkaz: |
|