Core Sample

Rotary Evaporator

Rotary Evaporator


Who We Are

Shelby Keeler

What We Did

On the night of the 23rd, we helped with the process of concentrating the chemicals. This involved weighing out 2 grams of sediment and adding it to the dicholoromethane. We then put them into a machine called a Sonicator which homogenized the mixtures over the next hour. While that was happening, another student set up a filtration system for each bottle using fiberglass and more DCM. Each sediment sample was poured through it’s own filter. After that we put them one at a time into the Rotary Evaporator. This device was using evaporation to pull out the excess DCM and left a small amount of the sample chemicals behind. This sample was then put into a small vial in which I added then 10mL of Petroleum Ether.

What We Learned

I learned a lot about the process because I was asking many questions. I learned about the two machines that were used and why things were being done a certain way. They also said that after that night, they will continue to concentrate the sample using Nitrogen.

Questions We Have

I would be interested in the Nitrogen process and how that happens. I would also like to know what they end up looking for in the final results.

Connections to Teaching

The measuring of the sediment as well as the new vocabulary.