Study on pesticide residues in apples, apple-based baby food, and their behaviour during processing using fast GC–MS multiresidue analysis

2007 ◽  
Vol 87 (13-14) ◽  
pp. 957-969 ◽  
Author(s):  
Andrea Hercegová ◽  
Milena Dömötörová ◽  
Svetlana Hrouzková ◽  
Eva Matisová
Keyword(s):  
Pesticide Residues ◽  
Baby Food ◽  
Multiresidue Analysis ◽  
Fast Gc

Production of apple-based baby food: changes in pesticide residues

2014 ◽  
Vol 31 (6) ◽  
pp. 1089-1099 ◽  
Author(s):  
Jana Kovacova ◽  
Vladimir Kocourek ◽  
Jana Kohoutkova ◽  
Miroslav Lansky ◽  
Jana Hajslova
Keyword(s):  
Pesticide Residues ◽  
Baby Food

Automated Sample Cleanup for Pesticide Multiresidue Analysis. Part II—Design and Evaluation of Column Chromatography Module

1984 ◽  
Vol 67 (4) ◽  
pp. 783-789
Author(s):  
Fred M Gretch ◽  
Joseph D Rosen
Keyword(s):  
Column Chromatography ◽  
Pesticide Residues ◽  
Continuous Flow ◽  
Flow System ◽  
Organophosphorus Pesticides ◽  
Multiresidue Analysis ◽  
Florisil Column ◽  
Continuous Flow System ◽  
Florisil Column Chromatography ◽  
Organochlorine And Organophosphorus Pesticides

Abstract An automated, continuous flow system is described for Florisil column chromatography of pesticide residues from food extracts. Evaluation of the system using 5 common organochlorine and organophosphorus pesticides in 2 crop matrices demonstrates essentially no difference in recovery or precision between automated and currently used manual analyses. The automated procedure uses only 20% of the solvents and adsorbents used in the manual procedure and is 3 times faster.

A Review of Methods for the Analysis of Orphan and Difficult Pesticides: Glyphosate, Glufosinate, Quaternary Ammonium and Phenoxy Acid Herbicides, and Dithiocarbamate and Phthalimide Fungicides

2014 ◽  
Vol 97 (4) ◽  
pp. 965-977 ◽  
Author(s):  
Renata Raina-Fulton
Keyword(s):  
Special Needs ◽  
Quaternary Ammonium ◽  
Pesticide Residues ◽  
Residue Analysis ◽  
Multiresidue Analysis ◽  
Analysis Methods ◽  
Phenoxy Acid Herbicides ◽  
Stability Issues ◽  
Acid Herbicides

Abstract This article reviews the chromatography/MS methodologies for analysis of pesticide residues of orphan and difficult chemical classes in a variety of sample matrixes including water, urine, blood, and food. The review focuses on pesticide classes that are not commonly included in multiresidue analysis methods such as highly polar or ionic herbicides including glyphosate, glufosinate, quaternary ammonium, and phenoxy acid herbicides, and some of their major degradation or metabolite products. In addition, dithiocarbamate and phthalimide fungicides, which are thermally unstable and have stability issues in some solvents or sample matrixes, are also examined due to their special needs in residue analysis.

scholarly journals MSPD as sample preparation method for determination of selected pesticide residues in apples

2017 ◽  
Vol 10 (1) ◽  
pp. 41-46 ◽  
Author(s):  
Andrea Purdešová ◽  
Milena Dömötorová
Keyword(s):  
Pesticide Residues ◽  
Raw Material ◽  
Gas Chromatography Mass Spectrometry ◽  
Mass Spectrometric Detector ◽  
Relative Standard ◽  
Fatty Food ◽  
The Matrix ◽  
Fast Gc ◽  
Concentration Levels

Abstract A method for extraction and fast gas chromatographic (GC) determination of twenty pesticide residues of different volatility and polarity at ultratrace concentration level in apples is presented. Apples as representatives of non-fatty food were chosen as a matrix; they are also a common raw material for baby food production. Under fast GC conditions employing a mass spectrometric detector (MSD), several parameters of the MSPD procedure were optimised. Samples were homogenised with sorbent Florisil, pesticides were eluted with the optimised volume of etylacetate. After solvent evaporation to dryness, reconstitution of the rest to toluene follow and the final extract was injected. Recoveries obtained at three selected concentration levels were determined. The optimised procedure led to recoveries ≥ 90 % for the majority of the studied pesticides and the limits of quantification (LOQs) < 5 μg.kg-1. Repeatability of gas chromatography-mass spectrometry (GC-MS) measurements of the matrix matched standards, expressed as the relative standard deviation (RSD [%]), was in most cases acceptable for ultratrace concentration levels of pesticide residues.

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