Simple ion chromatographic method for the determination of chlormequat residues in pears.
J Chromatogr A
; 920(1-2): 255-9, 2001 Jun 22.
Article
em En
| MEDLINE
| ID: mdl-11453007
Current methods for quantitative determination of chlormequat residues in food crops are characterized by rather low recoveries and the need for derivatization (in case of gas chromatography, GC), or by high capital investment (in case of liquid chromatography-mass spectrometry, LC-MS). We propose a cation-exchange chromatography method for the analysis of chlormequat in pears. The method is based on extraction of the target compound with 40 mM HCl, followed by centrifugation and filtration. The filtrate is directly injected into an ion chromatograph equipped with a commercially available cation-exchange column and a suppressed conductivity detection system. While the limit of detection (LOD) (0.5 mg/kg) may not be small enough to allow dietary analysis, the method meets all validation requirements and is an alternative for the existing GC and LC-MS methods in quality control.
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Coleções:
01-internacional
Base de dados:
MEDLINE
Assunto principal:
Reguladores de Crescimento de Plantas
/
Clormequat
/
Cromatografia por Troca Iônica
/
Frutas
Tipo de estudo:
Diagnostic_studies
Idioma:
En
Revista:
J Chromatogr A
Ano de publicação:
2001
Tipo de documento:
Article
País de afiliação:
Bélgica