Problemas en el análisis de metilsiloxanos volátiles (VMS): origen y soluciones

E. Y. Companioni Damas
2016 Química Nova  
PROBLEMS IN THE ANALYSIS OF VOLATILE METILSILOXANES (VMS): ORIGIN AND SOLUTIONS. Volatile methylsiloxanes (VMS) are pollutants widely distributed in the environment due to its extensive uses and high volatility. The analysis of these compounds is commounly performed by gas chromatography -mass spectrometry (GC-MS), and it is dificult due to the presence of background contamination and volatile losses. Different preconcentration techniques such as purge and trap (P&T), headspace (HS) and
more » ... ce (HS) and headspace -solid phase microextraccion (HS-SPME) have been applied for the analysis of VMS in environmental samples. Alternatively, solvent extraction combined with large volume injection techniques has been an effective method for the analysis of complex matrices (eg. wastewater, sludges). In this review, the efficiency of the different methods reported for the analysis of VMS is discussed, and different solutions are proposed to minimize background contamination and volatilization.
doi:10.21577/0100-4042.20160167 fatcat:2gecak4265gonlej22lcgzucgq