Secondly, the microsyringe plunger was depressed and then the microdrop was formed. Thirdly, we allowed the microdrop to get in contact to water sample for 30 min under agitation (300 rpm). After that, microdrop (1 μL) was drawn back into syringe and finally, the syringe was removed from the vial and immediately injected in a GC–MS. The GC–MS running was 24.0 min and the whole SDME/GC–MS determination took 54.0 min.