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Standard Operating Procedure Task: Rotary Evaporation

4. Attach the bump (splash) trap to the joint on the rotator of the rotovap using a clip; then connect your round-bottom flask to the bump trap using a second clip. Do no use grease on the rotovap joints. The clean ground glass joint connections will make an adequate seal and avoid getting grease in your samples. 5.

Rotary Evaporator Fact Sheet - UMass Amherst

8. 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. Remove and clean the bump bulb from the rotovap immediately after use to ensure ground glass joint connections do not stick together and to prevent

Looking Beyond the Rotovap for Evaporator Selection Lab ...

Apr 10, 2019 Looking Beyond the Rotovap for Evaporator Selection Lab managers might consider designs other than standard, single-bulb rotary evaporators. Apr 10, 2019 ... Bumping—the sudden, nonevaporative flow of sample through the solvent recovery path—is a common problem when either heat or vacuum is applied rapidly. Splash or bump traps usually ...

Failures and Troubleshooting of a Rotary Evaporator - Rotovap

Aug 08, 2019 Failures and Troubleshooting of a Rotary Evaporator. 1. The power indicator light doesn’t work when turn on the power switch. There are three possible reasons. Firstly, the power cord isn’t connected or is connected incorrectly. Secondly, the power switch fails. Last but not least, the circuit board fails. If it’s the first reason, the ...

Chemglass Life Sciences Bump Trap 250mL Rotary ...

Bump Trap, 250mL, Rotary Evaporator, 24/40 Top Outer, 24/40 Lower Inner. Used between the vapor tube and evaporation flask on a rotary evaporator to prevent contents of the flask from being drawn into the condenser in the event of “bumping.” Traps have a 24/40 top outer joint and the listed size of lower inner joint.

Bumping The Rotovap -

bumping. Remove and clean the bump bulb from the rotovap immediately after use to ensure ground glass joint connections do not stick together and to prevent contamination of future samples that will be rotovaped. 9. Always ensure that flasks, bump bulbs, and ground glass joint connections are secured

Bumping In Rotovap -

bumping. Remove and clean the bump bulb from the rotovap immediately after use to ensure ground glass joint connections do not stick together and to prevent contamination of future samples that will be rotovaped. 9. Always ensure that flasks, bump bulbs, and ground glass joint connections are secured. Get Details

USA Lab 2L Rotovap Bump Trap Adapter 24/40 - USA Lab

Calculated at Checkout. Brand: USA Lab. Description. Other Details. Reviews and QA. Description. The USA Lab 2L bump trap is a convenient add on for your 2L rotovap. This product is designed to catch any splash back from your rotovap.

Bump Trap at Thomas Scientific

Chemglass. Vapor tube/bump trap adapter is designed to be used with the Bchi R-200/205 rotary evaporators. This adapter combines a vapor tube adapter and a bump trap. Trap has an extra coarse fritted disc sealed between the lower inner joint and the top flange. Adapters have a 50mm OD top flange….

Concentrating Extract in a Rotovap - VACUUBRAND

Concentrating Extract in a Rotovap Vacuubrand 2022-03-23T15:32:17-04:00. Concentrating Extract in a Rotovap. ... is essential to maintain the proper vacuum depth and flow rate to minimize process time and prevent sample loss through bumping or foaming. If the vacuum is too deep, product will evaporate with the solvent and bumping/over-boiling ...

Home Environmental Health Safety UCI

Connect the bump trap to the rotovap and secure with the metal clip or a keck clip depending on the model of rotovap (pictured below). The bump trap should be kept clean, it provides a receptacle in case the solution splashes or boils beyond the flask. A clean bump trap can allow for recovery of any solution that “bumps”.

How To Clean a Rotary Evaporator - USA Lab

Dec 22, 2020 The easiest and quickest way to clean a rotary evaporator is to simply flush the machine with acetone (or another solvent of your choice). While this is not the most thorough cleaning method, it is ideal for situations where time is limited. To flush a rotary evaporator with acetone, fill up a small two-neck flask around halfway with acetone.

Rotavaping DMF - MJLPHD

Jan 10, 2014 To rotavap DMF, Dow Corning high vacuum grease must be freshly applied to the joins and Keck clips used to hold the flask onto a non-reversible splash-guard. With the water bath at 55 C the vacuum will need to be lowered to 25 Torr; at 70 C the required vacuum is only 25 Torr. A 100 mL pre-weighed flask and a 500 mL non-reversible splash ...

How To Use Rotovap? - Lab Instruments - Henan Lanphan ...

Jul 19, 2016 How to use rotovap (at the beginning)? 1.Power on the evaporator, open condenser circulating; connect flask which is to be distilled (solution in flask should no more than 50%); if necessary, use buffer ball to prevent bumping; use plastic standard clamp to fix; 2.Open the water pump, close tee air valve; meanwhile, adjust the height to make ...

Standard Operating Procedure: Rotovaps

Jun 06, 2016 solvent waste bottle located in the rotovap hood, remove your sample from the system and if you bumped into the bump trap remove it from the hood and subject it to the typical cleaning method employed by the lab. Step by step instructions located in rotovap hood area if further information is required. Personal Protective Equipment:

Rotovap - General Discussions on StillDragon Community Forum

Mar 07, 2018 7 March 2018 07:09PM edited March 2018. Yeah the vertical coil and cold finger condensers use the short duct, the horizontal uses the long duct. I have a short duct and the horizontal, which is also a mismatch. However, my horizontal is an older model, with no temp probe accommodation. The horizontal pulls the vacuum from close to the flange ...

Rotary Evaporator Bump Traps - Safety Emporium

Product Description. These are the most traditional rotary evaporator bump bulbs/traps which are used between the vapor tube and evaporation flask on a rotary evaporator to prevent the contents of the flask from being drawn into the condenser in the event of solvent bumping. The lower stem has 2 large holes; see CG-1321 and CG-1322 for modified ...

Rotary Evaporator Bump Traps Chemglass - VWR

Rotary Evaporator Bump Traps is used between the vapor tube and evaporation flask on a rotary evaporator to prevent contents of the flask from being drawn into the condenser in the event of bumping.Placing vacuum traps between an apparatus and vacuum source establishes a safe and controlled working system. The glassware protects the pump from the separated solvents …

Rotovap Startup - csustan.edu

Rotovap Tips A. To avoid bumping: • Do not fill your flask full. • Faster spin rate usually helps. • Use a moderate bath temp – too high will cause excessively fast evaporation. B. Once you have removed the majority of solvent, empty the collection flask! • If you want to thoroughly dry the sample, reattach and continue ...

Rotary Evaporator-Rotovap Vacuum Evaporator Price ...

The Problems Come With Rotovap Bumping. Bumping is one of the problems associated with a rotary evaporator. When it bumps it will lead to an unnecessary solvent lost. This shows that just as the process has great advantages that are associated with it, there are also some negative aspects of it as well.

Is rotary evaporator distillation?

The rotary evaporator, or rotovap, was invented in 1950 by the chemist Lyman C. Craig. ... Rotary evaporator bump trap is used between the vapor tube and evaporation flask on a rotary evaporator to prevent contents of the flask from being drawn into the condenser in …

How does rotary evaporation work? -

The rotovap works by increasing the rate of evaporation of the solvent by (1) reducing the pressure to lower the solvent boiling point, (2) rotating the sample to increase the effective surface area and (3) heating the solution. ... Bumping occurs when a sample boils rapidly, forming bubbles that cause the sample being concentrated to splash ...

Section 5.13 Title: Using the Rotary Evaporator Revision ...

Using the Rotary Evaporator (Rotovap) Assembly of the Rotovap When you begin, the rotovap will have been disassembled as shown in the picture above due to the cleaning procedure discussed below. It is possible the secondary cold trap will also be disassembled. The bump traps may be kept in alternative locations (i.e. drying rack or drawer) to

Rotary Evaporator Trap at Thomas Scientific

Vapor tube/bump trap adapter is designed to be used with the Bchi R-200/205 rotary evaporators. This adapter combines a vapor tube adapter and a bump trap. Trap has an extra coarse fritted disc sealed between the lower inner joint and the top flange. Adapters have a 50mm OD top flange….

Orgo 1 - Lab Final Exam Flashcards Quizlet

When using the rotovap, what is bumping and what steps can you take to avoid bumping? Bumping is when the solution in the round bottom flask goes into the bump trap. To avoid bumping, make sure the round bottom flask isn't more than halfway full, and that the pressure is set to the solvent's correct vapor pressure.

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