Comparative Study of Three Sample Preparation Methods for Multi-residue Extraction of Pesticide Residues in Hop Samples
The result's identifiers
Result code in IS VaVaI
<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F60193697%3A_____%2F20%3AN0000012" target="_blank" >RIV/60193697:_____/20:N0000012 - isvavai.cz</a>
Alternative codes found
RIV/00216208:11310/20:10403651
Result on the web
<a href="https://link.springer.com/article/10.1007/s12161-019-01658-6" target="_blank" >https://link.springer.com/article/10.1007/s12161-019-01658-6</a>
DOI - Digital Object Identifier
<a href="http://dx.doi.org/10.1007/s12161-019-01658-6" target="_blank" >10.1007/s12161-019-01658-6</a>
Alternative languages
Result language
angličtina
Original language name
Comparative Study of Three Sample Preparation Methods for Multi-residue Extraction of Pesticide Residues in Hop Samples
Original language description
Three sample preparation procedures were compared for a multi-residue analysis of pesticides in hops: (a) modified Hengel’s method based on extraction with acetonitrile in combination with clean-up on a C18 SPE column, (b) miniaturized Biendl’s method based on acetone extraction and PSA SPE sample clean-up, and (c) modified Quick, Easy, Cheap, Effective, Rugged, and Safe (QuEChERS) method which utilizes a specific mixture of three sorbents (PSA, C18, and Z-Sep) for dispersive SPE sample clean-up. The performance of the methods was evaluated and validated for a mixture of 56 pesticides analyzed by the liquid chromatography–high resolution mass spectrometry in compliance with the analytical quality control criteria of the SANTE/11813/2017 guidelines. Strong matrix-dependent signal suppression caused by the co-eluting hop matrix was observed for all sample preparations involved in this method comparison study. The matrix effects in percentages (%ME) were used for the evaluation of the effectiveness of the individual sample clean-up procedures. The recovery experiments were performed by spiking pesticides at the concentration level 0.50 mg/kg into the blank matrix to evaluate the extraction efficiency of the compared methods. Recoveries obtained for the modified Hengel’s method were in the range of 70–120% with RSDs of less than 20% for all studied pesticides. The performances of the methods were tested on the set of 24 samples of hops harvested in the Czech Republic. The method comparison on the determined concentration levels of the pesticide residues clearly showed that the extraction efficiency of the QuEChERS method is significantly less effective for the extraction residues presented in a sample above the level 20 mg/kg. In terms of time consumption, labor, materials, and solvents consumptions, the methods were thoroughly compared, and these demands increase in the following order QuEChERS < modified Hengel’s < miniaturized Biendl’s method.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10406 - Analytical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2020
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Food Analytical Methods
ISSN
1936-9751
e-ISSN
1936-976X
Volume of the periodical
13
Issue of the periodical within the volume
2
Country of publishing house
US - UNITED STATES
Number of pages
13
Pages from-to
503–515
UT code for WoS article
000498010700002
EID of the result in the Scopus database
2-s2.0-85075385284