Naslov
Multiresidue analysis of 25 pesticide residues in wines: comparative study of SPE and QuEChERS methods

Autori
Pelajić, Maja ; Vitali Čepo, Dubravka

Vrsta, podvrsta i kategorija rada
Sažeci sa skupova, sažetak, znanstveni

Izvornik
21th. International Symposium on Separation Sciences / - Ljubljana : Slovenian Chemical Society, 2015, 93-93

ISBN
978-961-6104-28-9

Skup
21th. International Symposium on Separation Sciences

Mjesto i datum
Ljubljana, Slovenija, 30.06.2015. - 03.07.2015

Vrsta sudjelovanja
Poster

Vrsta recenzije
Međunarodna recenzija

Ključne riječi
multiresidue analysis ; pesticide ; wine ; SPE and QuEChERS methods

Sažetak
Pesticide residues monitoring in wines is of great importance due to a large number of active substances that are often used to protect grape vine. Although the process of vinification involves many different technologies that alter the concentration of pesticide residues in different ways, as a rule, the concentration of residues decreases during wine making process. Consequently, methods to detect and quantify pesticide residues in wine must be very sensitive as well as selective [1]. Due to the complexity of the wine matrix, sample preparation is the key step in the analytical process of pesticide determination. Traditional procedures are time- consuming, labour-intensive, complicated and expensive. It is also quite common occurrence that many physically and chemically different compound have to be determined rather than only one analyte or single class of compound [2]. A number of techniques have been employed for the extraction and purification of pesticides from food product. Probably the most popular extraction procedure is standard solid-phase extraction (SPE). Recently, the QuEChERS (Quick, easy, cheap, effective, rugged and safe) method has been developed for the multiresidues analysis of pesticides from different food matrices with high water content. This method is particularly popular due to its simplicity, low cost, amenability to high throughput and relatively high efficiency results [3]. In this work, 25 pesticides are chosen for residues analysis in wine. Pesticides are analyzed with gas chromatography-mass spectrometry (GC-MS). Analytical procedure involved two extraction procedures: SPE and QuEChERS. Optimization of extraction procedure has been applied on both methods. Results for SPE and QuEChERS have been compared considering theirs analytical recoveries. Based on the results, it is shown which extraction procedure is method of choice for the analysis of pesticides residues in wine.

Izvorni jezik
Engleski

Znanstvena područja
Farmacija

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