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Topic: Isotope analysis  (Read 1577 times)

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Offline Cantacoxinha

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Isotope analysis
« on: April 01, 2019, 07:10:23 AM »
Let's suppose you have a sample of pure LiAlH4 or LiAlD4 in the lab. Which analytical methods might be used to prove which of these two is in the bottle?
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Offline mjc123

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Re: Isotope analysis
« Reply #1 on: April 01, 2019, 07:26:57 AM »
Infrared spectroscopy - Al-H and Al-D frequencies will be quite different.
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Offline Corribus

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Re: Isotope analysis
« Reply #2 on: April 01, 2019, 11:34:04 AM »
If you had no FTIR instrumentation, or didn't want to try to use such a reactive solid on it, I imagine you could also use the kinetic isotope effect to monitor a simple reaction rate. You would need a known sample as a control for comparison.

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Offline Babcock_Hall

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Re: Isotope analysis
« Reply #3 on: April 01, 2019, 01:39:54 PM »
Quote from: Cantacoxinha on April 01, 2019, 07:10:23 AM
Let's suppose you have a sample of pure LiAlH4 or LiAlD4 in the lab. Which analytical methods might be used to prove which of these two is in the bottle?
First, what are your thoughts?
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