Faster and simpler determination of chlorophenols in water by fiber introduction mass spectrometry.

摘要: Abstract Solid phase microextraction (SPME) of chlorophenols [2-chlorophenol (2CP), 2,4-dichlorophenol (24CP), 4-chloro-3-methylphenol (43CP), 2,4,6-tri-chlorophenol (246CP) and pentachlorophenol (PCP)] followed by direct mass spectrometric analysis has been performed fiber introduction spectrometry (FIMS). Two SPME fibers (65 μm PDMS/DVB 85 μm PA fibers) were tested, FIMS was via selective ion monitoring (SIM). The extractions evaluated at 10% ionic strength pH 1. Best extraction times determined for both fibers. Limits detection (LOD) limits quantification (LOQ) in the low μg L −1 range. Coefficients correlation analytical curves showed linear responses mineral water river samples spiked with 50 μg L presented high recoveries. FIMS, as compared to current EPA methods, is demonstrated allow faster simpler (elimination pre-separation or derivatization steps) required sensitivity.