Hollow-Fibre-Supported Dispersive Liquid-Liquid Microextraction for Determination of Atrazine and Triclosan in Aqueous Samples

Figure 5

Effect of stirring the aqueous solution on the extraction of the analytes. Conditions: volume, 1 mL of 5 µg/mL atrazine and triclosan aqueous sample to which 15 mg NaCl was added (15% w/v); 25 µL of a 1 : 4 (v/v) chlorobenzene : ethyl acetate mixture with the extraction time of 20 minutes and with toluene as the acceptor solvent.