Application of miniaturised ultrasonic extraction to the analysis of organochlorine pesticides in soil
Küçük Resim Yok
Tarih
2009
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
ELSEVIER SCIENCE BV
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
A miniaturised ultrasonic extraction procedure was developed for the determination of different organochlorine pesticides (OCPs) in soil by gas chromatography (GC/mu-ECD). For an acetone-petroleum ether (1/1, v/v) as the extractor and a 5-min sonication, parameters such as sample amount, solvent volume and number of extraction steps were optimized by usinga 23 factorial experimental design. Limits of detection ranged from 0.02 to 1.34 mu g kg(-1). The developed procedure was applied to three different real soil samples with different fortification levels (25, 50 and 100 mu g kg(-1)) and recoveries were estimated in the 82-106% range with relative standard deviations lower than 15%. Performance of the procedure was compared with those involving traditional shaking flask, Soxhlet extraction and large-scale ultrasonic extraction. The proposed procedure requires small volumes of solvent and sample. It is viable, rapid and easy to use for analysis of OCPs in soils. (c) 2009 Elsevier B.V. All rights reserved.
Açıklama
Anahtar Kelimeler
Miniaturised extraction, Ultrasonic extraction, Organochlorine pesticides, Soil, Factorial design
Kaynak
ANALYTICA CHIMICA ACTA
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
640
Sayı
01.02.2020
