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(Science: abbreviation) solution.

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Calculating acids,absorption and antibiotics?

There's a new antibiotic developed for oral admin It has a pH=2 (stomach) , pH=6 in the intestine and pKa=2.1 a)Will the drug dissociate in aqueous soln's as a weak or strong acid? b)Calculate the drug amount dissociated as % ionized and % non-ionized for each body part c)Will the compound be absorbed ...

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by piloting
Thu Mar 15, 2012 3:04 pm
Forum: General Discussion
Topic: Calculating acids,absorption and antibiotics?
Replies: 3
Views: 2149

Preparing buffer solns.

I have an assignment to prepare certain buffer solns from certain chemicals and I'm struggling with it, so some help would be greatly appreciated. I've looked in my old chem books to try to find guidance, but unsuccessfully. Anyway, here's an example ...

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by sunnidaze
Sat Sep 03, 2011 6:47 pm
Forum: Molecular Biology
Topic: Preparing buffer solns.
Replies: 6
Views: 4017

some general capsid questions

What kind of proteins are the capsid shells made of? Will a collection of capsid proteins in soln' generally form an icosahedral (or other geometric shape, depending on protein..) shape; Will they from encapsulating shapes on their own? can capsid shells be manufactured?

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by raneynickel
Sat Aug 08, 2009 12:50 am
Forum: Microbiology
Topic: some general capsid questions
Replies: 4
Views: 2403

Apoferritin characterictic pKa?

... the pKa value for apoferritin, or where could I find out> I am trying to understand why my supervisor has decided to use NaAcetate as a buffer soln in a protein crystallizing expt. I am doing. Is the crystallizing process of apoferritin a proton releaser or opposite? Cheers!

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by philip041
Wed Jan 14, 2009 4:31 pm
Forum: Molecular Biology
Topic: Apoferritin characterictic pKa?
Replies: 0
Views: 749

Citrate synthase stock calculation

... units (not as high) as previous papers have so i presume my CS concentration is wrong.please help as im really at the end of my tether!! my stock soln of CS 7.17mg/ml MW of CS 85,000(although some seem to work with monomer value of 42,500) protocol calls for me to make a 65uM stock of CS So in ...

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by proteinz
Tue Oct 07, 2008 10:37 am
Forum: Molecular Biology
Topic: Citrate synthase stock calculation
Replies: 1
Views: 1619
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