United customers can look forward to the following functions in the app: 1  Book flights and manage their MileagePlus and OnePass accounts. 2  Check in. 3  Access mobile boarding passes with one touch.  Get flight status/ 1 updates. Follow United's Twitter feed for up-to-the-minute updates on the airline.  Interactive airport maps.
Supernatant Definition - The supernatant is the clear liquid that lies above the solid residue after centrifugation, precipitation, crystallization or... Supernatant Definition - The supernatant is the clear liquid that lies above the solid residue after centrifugation, precipitation, crystallization or...
1 The extent of biocorrosion is then quantified by measuring the concentration of the metal ions released into the supernatant.  Purification of water to remove copper in the water generated by the PCB processes in the electronics industry. The supernatant in this case contains the excess corrosive copper.