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Solid-phase extraction (SPE) combined with liquid chromatography electrospray mass spectrometry (LC–(ESI)MS) was used to determine 16 non-ionic and anionic surfactants in different environmental water samples at ngL −1 levels. The proposed method is sensitive and simple and has good linear range and detection limits (less than 50ngL −1 ) for most compound classes.The effect of ion...
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