Identification and quantification of 77 pesticides in groundwater using solid phase coupled to liquid-liquid microextraction and reversed-phase liquid chromatography.
作者： Karel Vandecasteele , Irina Gaus , William Debreuck , Kristine Walraevens
DOI: 10.1021/AC991359C
关键词:
摘要: This paper describes a method for the extraction, separation, identification, and quantification of 77 pesticides (neutral, acidic, basic) including some s-triazine metabolites. The is appropriate organically (e.g. with humic acids) highly loaded groundwater samples. A comparative study pH-controlled mixed solid phase (LiChroprep RP18/LiChrolut EN) extraction different desorption solvents (acetonitrile or acetonitrile dichloromethane/methanol) elaborated. subsequent liquid-liquid microextraction reduces matrix effects. in sample are separated using RP-HPLC, detected, identified by diode array. efficiency illustrated on natural from phreatic aquifer.
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