Abstract:A determination method of ethylene glycol in animal feed by liquid chromatography coupled with electrospray ionization tandem mass spectrometry (LC-ESI-MS/MS) was developed. The analysis was performed with a C18 column (150 mm × 4.6 mm, 3.5 µm), and a gradient mobile phase of 0.1 % formic acid solution and acetonitrile. Ethylene glycol and surrogate standard (propylene glycol) were extracted by water at room temperature, derivatized with benzoyl chloride in alkaline medium, and analyzed by … Show more
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