Determination of Chlorophenols in Sediments Using Ultrasonic Solvent Extraction Followed by Stir Bar Sorptive Extraction Coupled to TD-GC-MS

A rapid method for analysis of chlorophenol content in sediments was developed using ultrasonic solvent extraction followed by stir bar sorptive extraction. The sediment sample is extracted using methanol and dichloromethane (9:1) in an ultrasonic bath. The extract is then redissolved in water and phenolic compounds are derivatised using acetic acid anhydride. The derivates are preconcentrated on a stir bar coated with polydimethylsiloxane that...