Ultrasonics cleaning with liquid rinse

In the designed electrochemical cell, A1 sheets (Alfa, 99.999%) machined into a cylinder configuration were used as reference and counter electrodes. Mild steel sheets were employed as working electrodes. Prior to use, the mild steel sheets were mechanically polished with emery paper, cleaned with acetone in an ultrasonic bath, treated with dilute hydrochloric acid and rinsed with distilled water. The mild steel sheets were always anodically polarized in the employed ionic liquid immediately before the electrodeposition in order to remove as far as possible the inevitable... 

All of the water samples were handled by liquid-liquid extraction (LLE) with hexane in the separation funnel. All glassware was thoroughly cleaned and rinsed with acetone and then hexane before use. The extracts were concentrated by rotary evaporator and then the sulfur-containing compounds were removed with elemental copper using ultrasonication bath. 

---