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Updated: May 10, 2026
A Simple Method for Automated Solid Phase Extraction of Water Samples for Immunological Analysis of Small Pollutants
Published on: January 1, 2016
Determination of steroids, caffeine and methylparaben in water using solid phase microextraction-comprehensive two
Paulo C F Lima Gomes1, Brian B Barnes, Álvaro J Santos-Neto
1Institute of Chemistry of Sao Carlos, University of Sao Paulo, Postal Code 780, 13560-970 São Carlos, SP, Brazil.
Abstract:
Analysis of several emerging contaminants (steroids, caffeine and methylparaben) in water using automated solid-phase microextraction with comprehensive two dimensional gas chromatography coupled to time of flight mass spectrometry (SPME-GCxGC-ToF/MS) is presented. Experimental design was used to determine the best SPME extraction conditions and the steroids were not derivatized prior to injection. SPME-GCxGC-ToF/MS provided linear ranges from 0.6 to 1200μgL(-1) and limits of detection and quantitation from 0.02 to 100μgL(-1). A series of river water samples obtained locally were subjected to analysis. SPME-GCxGC-ToF/MS is readily automated, straightforward and competitive with other methods for low level analysis of emerging contaminants.
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