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

Kód výsledku v 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>

Nalezeny alternativní kódy

RIV/60193697:_____/18:N0000012

Výsledek na webu

<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>

Jazyk výsledku

angličtina

Název v původním jazyce

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

Popis výsledku v původním jazyce

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.

Název v anglickém jazyce

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

Popis výsledku anglicky

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.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

<a href="/cs/project/TE02000177" target="_blank" >TE02000177: Centrum pro inovativní využití a posílení konkurenceschopnosti českých pivovarských surovin a výrobků</a><br>

Návaznosti

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

Rok uplatnění

2018

Kód důvěrnosti údajů

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

Název periodika

Journal of the Institute of Brewing

ISSN

0046-9750

e-ISSN

—

Svazek periodika

124

Číslo periodika v rámci svazku

3

Stát vydavatele periodika

GB - Spojené království Velké Británie a Severního Irska

Počet stran výsledku

8

Strana od-do

222-229

Kód UT WoS článku

000442590400003

EID výsledku v databázi Scopus

2-s2.0-85052131750