Act first, ask later. Never operate a centrifuge without a rotor. Detailed instructions and lecture will be given in the lab the instructors. Read the operation manual or obtain instructions from an experienced operator. The electrophoresis apparatus is disconnected from the power supply.
Power supply is switched off.
Keep outer surface of apparatus and surrounding bench area dry. Electrophoresis apparatus is disconnected from the power supply. Common glassware to be used in the laboratory should be cleaned with detergent, tap water and rinsed at least 3 times with distilled water. Removal of stubborn materials from glassware can be achieved by soaking in dichromate cleaning solution which will remove any organic materials. Quartz or silica cuvettes should be always rinsed with distilled water, then ethanol, and air-dried before storage.