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Topic: Analyzing a sample  (Read 4726 times)

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Offline Element

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Analyzing a sample
« on: February 02, 2007, 05:28:40 PM »
Hi all, i am a new member here. I would be really happy of anyone can answer my question. I wanted to run GC-MS and NMR on a solid unknown sample. But it doesn't dissolve in any solvent. What should I do?
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Offline natas

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Re: Analyzing a sample
« Reply #1 on: February 15, 2007, 05:58:07 AM »
What solvents did you already used?

You don't have any idea what kind of material it is?
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Offline J.I.

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Re: Analyzing a sample
« Reply #2 on: February 24, 2007, 07:39:05 AM »
for the GC - MS, try to get the melting point of your sample, if the mp is very high, then you can't run it for the GC - MS because your sample should be in the gaseous phase before it can be bombarded in the GC - MS.
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Offline Albert

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Re: Analyzing a sample
« Reply #3 on: February 28, 2007, 05:14:22 AM »
You could even get an IR spectrum, which might help you identify the substance, but, still, you must find a solvent that dissolves it.
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Offline english

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Re: Analyzing a sample
« Reply #4 on: February 28, 2007, 07:11:14 PM »
Are you sure it doesn't dissolve in any solvent?

Have you tried inert solvents?
« Last Edit: March 01, 2007, 04:27:25 AM by g english »
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