Determination of 4-tert.-octylphenol and 4-nonylphenol in laboratory animal feed sample by stir bar sorptive extraction followed by liquid desorption and column-switching liquid chromatography–mass spectrometry with solid-phase extraction
Titel:
Determination of 4-tert.-octylphenol and 4-nonylphenol in laboratory animal feed sample by stir bar sorptive extraction followed by liquid desorption and column-switching liquid chromatography–mass spectrometry with solid-phase extraction