pesticides residue in wheat flour
DESCRIPTION
Pesticide contamination controlTRANSCRIPT
FAPAS_0972_2011 page 1 of 2
Summary : FAPAS Proficiency Test 0972 Pesticide Residues in Wheat Flour July 2011 - September 2011 Management: FAPAS & FEPAS Sand Hutton, York UK York YO41 1LZ, United Kingdom
Matrix: Wheat Flour (organic)
Used Method: Multi residue method QuEChERS (DIN EN 15662): Extraction with Acetonitrile and dispersive SPE with PSA and final LC-MS/MS and GC-MSD- or GC-FPD-measurement (accredited method)
Analyte Assigned Value,
µg/kg
Dr. Specht results
µµµµg/kg
Z-score Number of Satisfactory
Z-score ≤2
Total Number of Scores
Satisfactory %
Chlorpyrifos 145 136 - 0.3 108 135 80
Fenvalerate (sum of all isomers)
304 311 0.1 82 101 81
Parathion-ethyl 121 125 0.2 71 99 72
Pirimiphos-methyl 76.8 62 - 0.9 115 130 88
Number and Percentage of Participants Correctly Identifying and Obtaining Satisfactory z-Scores for all
Pesticides Present ≥≥≥≥25 µµµµg/kg
Criteria number of satisfactory participants
total number participants satisfactory
%
correctly identified all four pesticides present
1
71 140 51
correctly identified all four pesticides and obtained satisfactory z-score
2 52 140 37
correctly identified all four pesticides and obtained satisfactory z-score and
used accredited methods3
36 140 26
Dr. Specht Laboratorien belongs to the participants having 1
- identified ALL analytes (51% of all participants) 2
- and met ALL analytes with satisfactory z-scores (37% of all participants) 3
- and met for these pesticides satisfactory z-scores used accredited methods (26 % of all participants)
Dr. Specht Laboratorien
FAPAS_0972_2011 page 2 of 2
Scope of Pesticides to be tested for:
Acephate Deltamethrin Fenvalerate (sum of isomers) Metconazole Quinoxyfen
Azinphos-methyl Demeton-S-methyl sulfone Fipronil Methacrifos Quintozene
Azoxystrobin Diazinon Fludioxinil Methomyl Spiroxamine
Bifenthrin Dichlorvos Fluquinconazole Metribuzin Tebuconazole
Captan Difenoconazole Flusilazole Omethoate Tebufenozide
Carbaryl Diflubenzuron Flutriafol Oxydemeton-methyl Thiabendazole
Carbendazim (sum) Dimethoate Formothion Paclobutrazol Thiacloprid
Carbofuran Dimoxystrobin alpha-HCH Parathion (ethyl) Thiamethoxam
3-Hydroxycarbofuran α-Endosulfan beta-HCH Penconazole Thiodicarb
Carboxin β-Endosulfan gamma-HCH Pendimethalin Triadimefon
Chlorfenvinphos Endosulfan sulfate Hexaconazole Permethrin (sum of isomers) Triadimenol
Chlorothalonil Epoxiconazol Imazalil Phosmet Triazophos
Chlorpropham Ethion Imidacloprid Phosphamidon (sum of E+Z isomers) Tricycazole
Chlorpyrifos (ethyl) Etrimphos Iprodione Pirimicarb Trifloxystrobin
Chlorpyrifos-methyl Fenbuconazole Isofenphos-methyl Desmethyl-pirimicarb Trifluralin
Clothianidin Fenhexamid Isoprothiolane Primiphos-methyl Triticonazole
Cyfluthrin (sum) Fenitrothion Isoproturon Prochloraz (sum) Vinclozolin
Cypermethrin Fenpropimorph Kresoxim-methyl Procymidone
Cyproconazole Fenthion Linuron Propiconazole
Cyprodinil Fenthion sulfone Malaoxon Pyraclostrobin
lambda-Cyhalothrin Fenthion sulfoxide Malathion Pyrimethanil
Dr. Specht Laboratorien