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Barium solution

Barium solution

a liquid containing barium sulfate, which shows up on x-rays. It outlines organs of the body so they can be seen on x-ray film.


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Exponential Growth and Decay

... 30 and 300 so I guess i'm using the 10^-6 2) 500 microlitres of a solution of a DNA fragment labelled with 32P with an initial activity of ... sample to be used in the experiment, but couldn't work that one out) 3) Barium-140 has a half light of 13 days. How many decay half-lives does a ...

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by Chemhalp
Wed Apr 23, 2008 6:11 pm
 
Forum: Molecular Biology
Topic: Exponential Growth and Decay
Replies: 11
Views: 4989

Re: Competitive/Non competitive inhibitors

... of enzyme. Iron(III) or Iron(II) salts might be inhibitors, so might Barium(II) or possibly Cadmium(II) salts—but watch out with the latter especially; ... the protein. You want to inhibit the enzyme, not drive it out of solution. There are small oligosaccharide inhibitors of amylase, too. These ...

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by blcr11
Mon Mar 17, 2008 2:34 pm
 
Forum: Molecular Biology
Topic: Competitive/Non competitive inhibitors
Replies: 5
Views: 12709

Effects of basic solution on photosynthesis

... straightforward question for you guys: what is the effect of a basic solution on photosynthesis? I've read through http://biology-online.org/articles/ecological_alarm_oceans_turning.html ... if, instead of watering it with water (pH 7) but with, let's say, a Barium Hydroxide solution ...

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by nav
Thu Feb 07, 2008 10:51 pm
 
Forum: Botany Discussion
Topic: Effects of basic solution on photosynthesis
Replies: 6
Views: 5134

Protein precipitation

yes, barium hydroxide would be used to precipitate the protein. Would i be correct in saying that if i used each of these solutions separately (in different test tubes) in order to precipitate the protein then if i wanted recover ...

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by Miss_Me
Tue Mar 06, 2007 10:09 am
 
Forum: Molecular Biology
Topic: Protein precipitation
Replies: 4
Views: 7857

Protein precipitation

... An albumin precipitate formed can be completely dissolved by making the solution somewhat alkaline (pH 6 to 7) to the pH at which precipitation occurred..." ... ammonium sulphate -g- 10%w/v sodium tungstate in 0.2M H2SO4 -i- 0.15M Barium hydroxide and 5% zinc sulphate Statement 2: "...Most ...

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by Dr.Stein
Mon Mar 05, 2007 7:42 am
 
Forum: Molecular Biology
Topic: Protein precipitation
Replies: 4
Views: 7857
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