When you use this ERM, please carefully break open the ampoule at the neck and pipet 10 ml from the ampule into 250 ml volumetric flask and bring to volume by 1%HNO3 or 1%HCl solution.
Don't let in accuracy hold you back in lab! This video introduces the proper methods for measuring precise volumes of liquid using pipets Burets volumetric flasks and syringes.
Laboratory glassware--One-mark volumetric flasks
When you use this ERM, please carefully break open the ampoule at the neck and pipette 10 ml from the ampoule into 250 ml volumetric flask and bring to volume by laboratory-pure water.
This video introduces the proper methods for measuring precise volumes of liquid using pipets, burets, volumetric flasks, and syringes.
Standard preparation -weigh accurately 100 mg of USP Papain RS in a 100-ml volumetric flask. And add Buffer solution to dissolve.
