Micropipette used to prepare solutions to an accurate volume in micro volume

Micropipette used to prepare solutions to an accurate volume in micro volume

Historical fact – in the laboratory practice of the Soviet Union, until the middle of the 20th century, it was customary to draw liquid into a pipette by sucking it in with your mouth! which often led to injury or poisoning. Even now, you can find chemists who use this method in the old fashioned way, which, of course, is a violation of safety rules when working in a laboratory.