[11]
Continuous solid-phase extraction and gas chromatographic determination of organophosphorus pesticides in natural and drinking waters[J] . E Ballesteros,M.J Parrado.Journal of Chromatography A . 2004 (1)
[11]
Continuous solid-phase extraction and gas chromatographic determination of organophosphorus pesticides in natural and drinking waters[J] . E Ballesteros,M.J Parrado.Journal of Chromatography A . 2004 (1)