Use a bump bulb see picture placed between your sample and the condenser to prevent contamination of the condenser area and your sample in the event of bumping.
Aug 08 2019nbsp018332If it’s the first reason the solution to this trouble is that the power supply should be turned on correctlyIf it’s the second or third reason stop using it immediately and contact the manufacturer immediately.
The USA Lab 2L bump trap is a convenient add on for your 2L rotovapThis product is designed to catch any splash back from your rotovap.
Vapor tubebump trap adapter is designed to be used with the B252chi174 R200205 rotary evaporatorsThis adapter combines a vapor tube adapter and a bump trapTrap has an extra coarse fritted disc sealed between the lower inner joint and the top flangeAdapters have a 50mm OD top flange.
The bump traps may be kept in alternative locations iDrying rack or drawer to avoid breakageTo begin choose a bump trap of appropriate joint size based on the flask you intend to useSecure this trap to the rotovap using the springloaded metal clamp shown in the pictureDo not use any grease on these joints.
Jul 21 2017nbsp018332Understanding Rotovap DistillationBefore learning about rotovap setup and operation you must have a clear picture of the physical change happening inside of the rotary evaporatorConsider how a mixture containing extract and ethanol must first be separated before rotovap distillation can occur.
Jun 26 2017nbsp018332Bumping occurs when a sample boils rapidly forming bubbles that cause the sample being concentrated to splash out of the flaskThis is normally caused by heating too quick or applying too strong of a vacuumThe chances of it causing damage and splashes into the rotovap are increased if your evaporation flask is more than half full.
Jun 26 2019nbsp018332Thankfully there are several ways to make your rotary evaporator process faster Increasing the rotation speedIncreasing the bath temperatureWhile these methods all involve increasing certain parameters there are caveats in each case.
Mar 11 2019nbsp018332Bumping vsBumping is a common problem while using rotary evaporators as samples being heated under vacuum in closed conditions causes the solvent to suddenly boil and bump in other words erupt usually quickly without warningAs the rotovap evaporates the solvent under vacuum the solvent can be sucked up in its entirety.
May 08 2022nbsp018332The most basic and important skill in volleyball is the passMost volleyball players call it the bump because it is used to hit a ball that is below the head or at your platform as most volleyball players would call it.
Reduce bumping on the rotovap to minimize compound loss while removing solvent under reduced pressureOtherwise youll find yourself diassembling and rinsing every square inch of the rotovap in a desperate attempt to recover whats left of your precious product.
Reducing Bumping on the RotovapThe bump guard lesson is usually learned one of two ways A someone teaches you or B someone doesn’tThe former is ideal and you may have no idea how lucky you are.
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