Extractability of Incurred Residues using QuEChERS - EURL ...

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Question 1: What are the minimum agitation times required to extract incurred residues quantitatively ? EURL-SRM EU Reference Laboratory for Pesticides requiring Single Residue Methods 6 3 rd Joint EURL-Workshop Freiburg, 27 - 28 Sep 2011
Question 2: How do longer extraction times impact recoveries of spiked pesticides ? Question 3: What is the impact of Temperature? EURL-SRM EU Reference Laboratory for Pesticides requiring Single Residue Methods 7 3 rd Joint EURL-Workshop Freiburg, 27 - 28 Sep 2011
Page 1 and 2: Extractability of Incurred Residues
Page 3 and 4: QuEChERS Validation >165 000 recove
Page 5: QuEChERS MeCN / Water: 1-phase extr
Page 9 and 10: EURL-SRM EU Reference Laboratory
Page 11 and 12: Comparison of Different Approaches
Page 13 and 14: Co-extracted Matrix Extrakt [mg/mL]
Page 15 and 16: Yields in [%] , (1 min by hand/Froz
Page 17 and 18: 600 500 400 300 200 100 0 1 min by
Page 19 and 20: EURL-SRM EU Reference Laboratory fo
Page 21 and 22: Impact of particle size (EUPT2-Whea
Page 23 and 24: Impact of further Comminution (PT-s
Page 25 and 26: Beeswax with incorporated Pesticide
Page 27 and 28: First Conclusions 1) SHAKERS Shaki
Page 29 and 30: Yield at 20 min mechanical shaking
Page 35 and 36: Tested Commodities 40 35 30 25 20 1
Page 37 and 38: Extractability of incurred residues
Page 39 and 40: Impact of Commodity Type on Extract
Page 47 and 48: Extractability increase [%] (1 min
Page 49 and 50: How was Data-Reliability ensured? W
Page 51 and 52: IMPACT OF EXTENDED EXTRACTION TIMES
Page 53 and 54: Effects with Ethyl acetate Method Y
Page 55 and 56: Comparison of Methods EURL-SRM EU R
Page 57 and 58:
OUTLOOK • Perform additional reco
Page 59:
EURL-SRM EU Reference Laboratory fo
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Extractability of Incurred Residues using QuEChERS - EURL ...

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