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Hoffmann, R. A wiki for the life sciences where authorship matters. Nature Genetics (2008)
 
 
 

Determination of residual bromopropylate and coumaphos in honey and honeycomb by capillary gas chromatography.

This study describes a method for the quantitative determination of residual bromopropylate (BP) and coumaphos (Cph) in honey and honeycomb. It is based on a reversed phase extraction technique on sorbent octadecyl. Both phyto-pharmaceuticals are determined by electron-capture using a fused silica capillary column CP Sil 5 CB. The absolute detection limit for BP and Cph is 2.5 and 5 pg, respectively. Recoveries of 99.6% and 94.4% are obtained for samples fortified at levels of 400 micrograms BP/kg and 1,000 micrograms Cph/kg. Twelve samples of honey and 8 samples of honey-honeycomb have been analysed using this method. BP and Cph could not be detected in the honey samples. Samples of honey-honeycomb recently treated with Perizin (Cph) and Folbex VA (BP) contained different amounts of BP and Cph.[1]

References

  1. Determination of residual bromopropylate and coumaphos in honey and honeycomb by capillary gas chromatography. van Rillaer, W., Beernaert, H. Zeitschrift für Lebensmittel-Untersuchung und -Forschung. (1989) [Pubmed]
 
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