A novel analytical approach has bee

A novel analytical approach has been developed and evaluated for the quantitative analysis of a selected group of widely used pesticides
(dimethoate, simazine, atrazine, diuron, terbuthylazine, methyl-parathion, methyl-pirimiphos, endosulfan I, endosulfan II, endosulfan sulphate,
cypermethrin and deltamethrin), which can be found at trace levels in olive oil and olives. The proposed methodology is based on matrix
solid-phase dispersion (MSPD), (with a preliminary liquid–liquid extraction in olive oil samples) using aminopropyl as sorbent material with
a clean-up performed in the elution step with Florisil, followed by mass spectrometric identification and quantitation of the selected pesticides
using both gas chromatography–mass spectrometry (GC–MS) in selected ion monitoring (SIM) mode and liquid chromatography tandem
mass spectrometry (LC–MS–MS) in positive ionization mode. The recoveries obtained (with mean values between 85 and 115% (obtained at
different fortification levels) with RSD values below 10% in most cases, confirm the usefulness of the proposed methodology for the analyses
of these kind of complex samples with a high fat content. Moreover, the obtained detection limits, which were below 5
g kg−1 by LC–MS
analyses and ranged from 10 to 60
g kg−1 by GC–MS meet the requirements established by the olive oil pesticide regulatory programs. The
method was satisfactorily applied to different olives and olive oil samples

ผลลัพธ์ (อังกฤษ) 2:

A Novel Analytical Approach has been developed and evaluated for The quantitative analysis of a Selected Group of widely Used Pesticides
(dimethoate, Simazine, atrazine, diuron, Terbuthylazine, methyl-parathion, methyl-Pirimiphos, endosulfan I, endosulfan II, endosulfan sulphate,
cypermethrin. and deltamethrin), which can be found at trace levels in olive oil and olives. The proposed methodology is based on Matrix
Solid-Phase dispersion (MSPD), (with a Preliminary Liquid-Liquid extraction in Olive Oil samples) using aminopropyl As SORBENT Material with
a Clean-up performed in The elution Step with Florisil, followed by mass spectrometric. Identification and quantitation of The Selected Pesticides
Gas chromatography-mass spectrometry using Both (GC-MS) in Selected Ion Monitoring (SIM) Mode and Liquid chromatography tandem
mass spectrometry (LC-MS-MS) in positive ionization Mode. The Recoveries obtained (with mean values ​​between 85 and 115% (obtained at
different Fortification levels) with RSD values ​​Below 10% in Most Cases, Confirm The Usefulness of The proposed methodology for The analyzes
of these Kind of Complex samples with a High fat content. . Moreover, The obtained Detection limits, which were Below 5? G kg-1 by LC-MS
analyzes and ranged from 10 to 60? G kg-1 by GC-MS Meet The requirements Established by The Olive Oil Pesticide Regulatory programs. The.
method was satisfactorily applied to different olives and olive oil samples.