Czech J. Food Sci., 2004, 22(1):24-28 | DOI: 10.17221/3403-CJFS
Potential of liquid chromatography-atmospheric pressure chemical ionisation tandem mass spectrometry for determination of fosetyl-aluminium residues in dried hops
- Department of Food Chemistry and Analysis, Faculty of Food and Biochemical Technology, Institute of Chemical Technology in Prague, Prague, Czech Republic
New analytical procedure for the determination of fosetyl-aluminium in hop cones (also called "hops") was developed. Liquid chromatography-atmospheric pressure chemical ionisation tandem mass spectrometry (LC-APCI-MS/MS) allowed a highly selective determination of this fungicide which facilitated the sample preparation. The sufficiently low detection limit (1 mg/kg of dried hops) with the acceptable method performance characteristics (RSD 9%, recovery 76% - at the level of 10 mg/kg) complies with the need to inspect the observance of maximal residual limit 100 mg/kg. The application of LC-MS technique thus provided an effective way of fosetyl-aluminium determination in the complex hops matrix.
Keywords: fosetyl-aluminium; pesticide residues; hops analysis; liquid chromatography; mass spectrometry
Published: February 29, 2004 Show citation
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