Simultaneous determination of multiresidual phenyl acetanilide pesticides in different food commodities by solid-phase cleanup and gas chromatography-mass spectrometry.
J Sep Sci
; 36(6): 1061-9, 2013 Mar.
Article
em En
| MEDLINE
| ID: mdl-23420538
ABSTRACT
An efficient and sensitive multiresidue method has been developed for quantification and confirmation of 25 phenyl acetanilide pesticides in a wide variety of food commodities including maize, spinach, mushroom, apple, soybean, chestnut, tea, beef, cattle liver, chicken, fish, and milk. Analytes were extracted with acetone-n-hexane (12, v/v) followed by cleanup using SPE. Several types of adsorbents were evaluated. Neutral aluminum and graphitized carbon black cartridge showed good cleanup efficiency. The extract was determined by GC-MS in the selected ion monitoring mode using one target and two qualitative ions for each analyte. The limits of detection were 0.01 mg/kg for all analytes. The average recoveries ranged from 66.9 to 110.6% (mean 88.8%) and RSDs were in the range 2.0-19% (mean 10.5%) across three fortification levels. The proposed method was successfully applied to real samples in routine analysis and a satisfactory result was obtained.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Chá
/
Verduras
/
Resíduos de Praguicidas
/
Extração em Fase Sólida
/
Frutas
/
Cromatografia Gasosa-Espectrometria de Massas
/
Acetanilidas
Tipo de estudo:
Evaluation_studies
/
Qualitative_research
Idioma:
En
Revista:
J Sep Sci
Ano de publicação:
2013
Tipo de documento:
Article
País de afiliação:
China