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Standard substance

standard substance

A pure, authentic substance used for identification purposes.


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Glycerol effect on Beta-galactosidase

... and Glycerol in yet another. We took various samplings of the flasks at standard intervals from a shaker bath. After we sorted the samples we put ... Glycerol which has the OH groups. As you increase the glycerol in a substance it start to decrease the pH of the solution. I am taking a stab ...

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by ScienceRob
Wed Apr 14, 2010 11:47 pm
 
Forum: Microbiology
Topic: Glycerol effect on Beta-galactosidase
Replies: 3
Views: 5360

Re: Beer Lambert Law

... to come out in units of micromol/min. Assuming your cuvetted is a standard cuvette with a 1 cm path length (and almost all cuvettes are; some ... of buffer, say) prior to measurement, then there is 13.72 micrmole of substance in the original specimen. More than that, no one can say without ...

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by blcr11
Thu Mar 05, 2009 2:42 pm
 
Forum: Molecular Biology
Topic: Beer Lambert Law
Replies: 1
Views: 7297

Re: Bible vs Darwin

... that, but what you're implying is that my opinions are made without substance, and I'm saying that this forum was meant for discussion, and debate. ... progress in their society, and not be repressed backwards into an old standard, moderate way of living. And this is not just "my" opinion ...

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by viloloco5
Fri Oct 17, 2008 10:33 pm
 
Forum: Evolution
Topic: Bible vs Darwin
Replies: 293
Views: 301193

Re:

... irascible due to the fact that a staw-man argument has no real substance or validity in it. Maybe you found it a bit unsettling,but mind ... by majority of this progressed society, are going to go back to that standard just because it was merely convenient. You're correct that philosophical ...

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by viloloco5
Thu Oct 16, 2008 11:58 pm
 
Forum: Evolution
Topic: Bible vs Darwin
Replies: 293
Views: 301193

Re: disintegrations per minute

... tube. From the sounds of it, you are being asked to plot the dpm for a standard curve? If you really need dpm (and not just the raw cpm, which is ... is 75 %, then dpm = cpm/0.75. The dpm’s are related to the amount of substance in the assay via the specific activity of the radioactive ligand ...

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by blcr11
Mon May 12, 2008 3:03 pm
 
Forum: General Discussion
Topic: disintegrations per minute
Replies: 4
Views: 5800
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