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Potassium-40

potassium-40

A naturally occurring (0.0117%) radioactive potassium isotope; beta emitter with half-life of 1.26 billion years; chief source of natural radioactivity of living tissue.


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Re: [molecular bio]calculation

thanks, please i have one more... :cry: stock solutions and powders available: NaCl powder (molecular weight 58.4), 1 M potassium phosphate, and a 5 mg/ml stock of cholesterol (mol. wt. 386.7) Acetic acid (CH3COOH) is a liquid at room temperature. When making acetate buffers (as in ...

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by scholesmu
Sun Aug 16, 2009 11:49 am
 
Forum: Molecular Biology
Topic: [molecular bio]calculation
Replies: 3
Views: 124

Re: Stomach bloating and weight gain

... electrolytes to drop support this claim. And my idea of fasting is juicing: fresh fruit and vegetables put thru a juicer (containing loads of potassium, sodium, calcium, phytonutrients, fructose, and many other nutrients - not just electrolytes). Well that is hardly fasting, is it? From what ...

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by MichaelXY
Mon Aug 03, 2009 5:38 am
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 299
Views: 484764

Re: Stomach bloating and weight gain

... electrolytes to drop support this claim. And my idea of fasting is juicing: fresh fruit and vegetables put thru a juicer (containing loads of potassium, sodium, calcium, phytonutrients, fructose, and many other nutrients - not just electrolytes).

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by kolean
Sun Aug 02, 2009 2:47 pm
 
Forum: Physiology
Topic: Stomach bloating and weight gain
Replies: 299
Views: 484764

Osmosis and Diffusion

... piece. Place it in a drop of water on the slide. Keep it expanded..i.e make sure it is not folded. Add a couple of drops of salt solution..say 10% potassium nitrate. You get result instantly. Exosmosis will take place. Demonstrate and then wash with pure water to show osmosis or end-osmosis. Now ...

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by freshbiology
Sat Aug 01, 2009 4:25 pm
 
Forum: General Discussion
Topic: Osmosis and Diffusion
Replies: 2
Views: 194

Re: Bird-Dinosaur News

... the very recent samples. The point is that when a ratio is given by these labs, they only give a ratio--there is no way they can tell you how much potassium actually depronated in the past and became argon. Did you not read the rebuttal I linked to? It addresses the article far better than I could ...

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by AstusAleator
Sun Jul 05, 2009 8:38 pm
 
Forum: Evolution
Topic: Bird-Dinosaur News
Replies: 44
Views: 1046
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