In recent years, the contamination of the environment
by various toxic organic chemicals has attracted worldwide
attention. This has led to a need to develop a simple,
rapid and efficient method for monitoring their
presence. The analysis of these compounds mostly relies
on chromatographic techniques. In cases when the
concentrations of these compounds are very low, especially
in a sample with a complex matrix, an initial
preparation/extraction of the sample is required to any
instrumental analysis.