Dictionary » S » Supernatant

Supernatant

supernatant

(Science: chemistry) The soluble liquid fraction of a sample after centrifugation or precipitation of insoluble solids.


Please contribute to this project, if you have more information about this term feel free to edit this page



Results from our forum


Cell counting question

... all samples for the dividing cells. To prepare the concentrated solution, we centrifuged cells, and then we were supposed to pour off part of the supernatant. However, my TA poured it all off. She then added Tris to it to make it the correct volume. My question is this: What is tris, and what ...

See entire post
by jb0378
Thu Aug 20, 2009 5:11 pm
 
Forum: Cell Biology
Topic: Cell counting question
Replies: 7
Views: 133

Problems related to Microsome Preparation

... from fragement of plasma membrane. I lysed the cells by lysis buffer first and then centrifuged it at 500g for 10 min in cold room to take supernatant use another centrifugation at 5000g for 10 min in cold room. Then I loaded 2mL of the lysate to 3mL 35%sucrose cushion with dropper. I found ...

See entire post
by benzenefancy
Tue Jun 30, 2009 7:21 pm
 
Forum: Molecular Biology
Topic: Problems related to Microsome Preparation
Replies: 0
Views: 141

Separation of microsome by centrifugation

... from fragement of plasma membrane. I lysed the cells by lysis buffer first and then centrifuged it at 500g for 10 min in cold room to take supernatant use another centrifugation at 5000g for 10 min in cold room. Then I loaded 2mL of the lysate to 3mL 35%sucrose cushion with dropper. I found ...

See entire post
by benzenefancy
Tue Jun 30, 2009 7:06 pm
 
Forum: General Discussion
Topic: Separation of microsome by centrifugation
Replies: 0
Views: 65

Lost Protein?

... confirmed the recombinant protein I'm working to collect is expressed in T7 ecoli/pET24a. And after addition of lysozyme and then sonication the supernatant also showed the expected protein. INFO: the protein's iso electric point is predicted to be 9.8... the solution for the column is 20mM TRIS(pH ...

See entire post
by BrianScott
Tue Jun 30, 2009 4:05 pm
 
Forum: Molecular Biology
Topic: Lost Protein?
Replies: 0
Views: 143

definition for the word/verb pellet

... or particles (such as proteins, nucleic acids or cells), which is typically obtained from a liquid medium in a conical tube by centrifugation. Supernatant is the liquid phase atop of the pellet after centrifugation. Sometimes a pellet is formed after precipitation or other such event, if the ...

See entire post
by biohazard
Thu Jun 25, 2009 11:36 am
 
Forum: General Discussion
Topic: definition for the word/verb pellet
Replies: 2
Views: 109
View all matching forum results

This page was last modified 21:16, 3 October 2005. This page has been accessed 2,699 times. 
What links here | Related changes | Permanent link