Analysis of multiresidue pesticides in dried hops by LC-MS/MS using QuEChERS extraction together with dSPE clean-up

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10380064" target="_blank" >RIV/00216208:11310/18:10380064 - isvavai.cz</a>

Alternative codes found

RIV/60193697:_____/18:N0000012

Result on the web

<a href="https://doi.org/10.1002/jib.490" target="_blank" >https://doi.org/10.1002/jib.490</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/jib.490" target="_blank" >10.1002/jib.490</a>

Result language

angličtina

Original language name

Analysis of multiresidue pesticides in dried hops by LC-MS/MS using QuEChERS extraction together with dSPE clean-up

Original language description

A simple and selective method is reported for the simultaneous determination of 48 fungicide, insecticide and herbicide residues in hops by LC-MS/MS. The extraction of pesticide residues from the hop matrix was conducted by a method based on the QuEChERS (Quick, Easy, Cheap, Effective, Rugged and Safe) sample preparation approach in combination with dispersive solid-phase extraction using various sorbent blends consisting of primary-secondary amine, C-18 and zirconia based sorbents. The matrix effect of all applied sorbent blends was evaluated. The results showed that the QuEChERS method required further optimization of the dispersive solid-phase extraction cleaning step owing to co-extraction of matrix components such as chlorophyll and hop resins. These contaminants resulted in signal suppression, elevated background, and other negative matrix effects. The accuracy, precision, specificity, linearity, limit of detection and limit of quantification were evaluated. The recovery ranged from 70 to 120% for most of the pesticides and RSD was &lt;20% for all pesticides. The limit of quantification was estimated at 0.02mg/kg or, in the worst cases, 0.05mg/kg. The results meet the European Commission standard legislation, implying that this method is both accurate and reproducible.

Czech name

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Czech description

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Type

J_imp - Article in a specialist periodical, which is included in the Web of Science database

CEP classification

—

OECD FORD branch

10406 - Analytical chemistry

Project

<a href="/en/project/TE02000177" target="_blank" >TE02000177: Centre for Innovative Use and Strengthening of Competitiveness of Czech Brewery Raw Materials and Products</a><br>

Continuities

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2018

Confidentiality

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Name of the periodical

Journal of the Institute of Brewing

ISSN

0046-9750

e-ISSN

—

Volume of the periodical

124

Issue of the periodical within the volume

3

Country of publishing house

GB - UNITED KINGDOM

Number of pages

8

Pages from-to

222-229

UT code for WoS article

000442590400003

EID of the result in the Scopus database

2-s2.0-85052131750