Determination of lasalocid in eggs using liquid chromatography–electrospray mass spectrometry
- 1 January 1995
- journal article
- Published by Royal Society of Chemistry (RSC) in The Analyst
- Vol. 120 (4) , 1129-1132
- https://doi.org/10.1039/an9952001129
Abstract
A method is presented for the determination of the polyether ionophore, lasalocid, in eggs. Samples are extracted under acidic conditions using acetonitrile and the extracts are cleaned up using a simple liquid–liquid extraction step. Lasalocid is detected and quantified using liquid chromatography–electrospray mass spectrometry on a quadrupole bench-top instrument. The technique is highly sensitive, with a detection limit of about 0.5 ng g–1 of lasalocid in homogenized egg samples.Keywords
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