the use of solid phase extraction method for xa9952518 analysis of residues of pesticides used in banana production in costa rica l e castillo c ruepert a r alfaro e ...
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...The use of solid phase extraction method for xa analysis residues pesticides used in banana production costa rica l e castillo c ruepert a r alfaro solis central american institute studies toxic substances universidad nacional heredia abstract different devices were tested eleven was performed by using gas chromatograph equipped with npd and ecd detectors general low recoveries high variation coefficients found chlorothalonil imazalil terbufos thiabendazole other ranged between over introduction routine analyses water samples our laboratory are done liquid lle dichloromethane followed detection gc spe techniques becoming popular because they do not have several disadvantages thinking ambient temperature we normally one main reasons looking to alternatives is which known be hazardous solvent want reduce risk occupational exposure it solvents could organic third thus reducing associated risks costs storing disposal advantages more cost effective faster extractions also expected that will...