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Concentration

Definition

noun

(1) The measure of the amount of a sub-component (especially solute) in a solution.

(2) The ratio of the mass or volume of a substance (solute) to the mass or volume of the solvent or solution.

(3) The increase of strength of a pharmaceutical preparation.

(4) The act or process of focusing or fixing of attention.

(5) The product of something concentrated.


Supplement

In chemistry, concentration of a solute in a solution can be done by chemical means, e.g. evaporation of the solvent, diffusion, and purification. In pharmacology, concentration of a pharmaceutical preparation can be done by extraction, precipitation and drying of the crude active agent.


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Re:

... someone else isn't very helpful either... I think you can use a test, where semi-solid agar taken in test tube, which will a gradation of oxygen concentration. Surface have normal oxygen concentration and when we go downwards its concentration gradualy decreases. At near bottom there is no oxygen ...

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by sosippus
Wed Sep 24, 2014 7:44 pm
 
Forum: Microbiology
Topic: Oxygen requirements of eukaryotes
Replies: 3
Views: 337

Oxygen requirements of eukaryotes

I think you can use a test, where semi-solid agar taken in test tube, which will a gradation of oxygen concentration. Surface have normal oxygen concentration and when we go downwards its concentration gradualy decreases. At near bottom there is no oxygen at all. If we add ...

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by josem
Wed Sep 24, 2014 5:28 pm
 
Forum: Microbiology
Topic: Oxygen requirements of eukaryotes
Replies: 3
Views: 337

Plasmid yield/concentration

"High yield plasmid" means that host cells make a lot of copies per cell and that usually results in high plasmid concentration in the final DNA preparation. Alternatively, larger volume of stating material to smaller volume elution can be used to concentrate low yield plasmid ...

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by Cat
Sat Sep 20, 2014 4:18 pm
 
Forum: Molecular Biology
Topic: Plasmid yield/concentration
Replies: 3
Views: 748

Re: Any ideas for vaccine development or anti-viral drugs???

... was not observed in either study. The four chemically similar PMOplus components exhibited generally similar PK profiles. The mean peak plasma concentration (Cmax) and area under the concentration curve (AUC) values of the four components exhibited dose-proportional PK. The estimated plasma ...

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by jonmoulton
Mon Sep 15, 2014 3:04 pm
 
Forum: Cell Biology
Topic: Any ideas for vaccine development or anti-viral drugs???
Replies: 2
Views: 476

Re: Plasmid yield/concentration

Dear, scientist please give a response.

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by Helics
Sat Aug 02, 2014 3:55 am
 
Forum: Molecular Biology
Topic: Plasmid yield/concentration
Replies: 3
Views: 748
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