aab18011
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Location: Connecticut, USA
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Methods for Identifying Chemicals
Hi, I am new here and I am setting up my own personal lab. I have quite a lot of starting equipment that I have bought or received as a gift. However,
I plan on doing my own reactions and trying to modify syntheses, and some of my products come out so different that it is hard to determine what
chemicals I am making. I was wondering if there are some nice machines that can be used for this. I mean I don't want to spend 20,000$ on an NMR
machine, but I have heard from the grapevine that you can find one for cheap. For example, I was working with Tannic Acid in hopes of breaking off the
Gallic acid units with Sodium Metabisulfite. My problem is making sure that my products are what I predicted them to be.
I am the one who boils to dryness, fear me...
H He Li B C(12,14) Na S Cl Mn Fe Cu Zn Ba Ag Sn I U(238)
"I'd rather die on my feet than live on my knees" -Emiliano Zapata
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Bmoore55
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I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS.
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aab18011
Hazard to Self
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Registered: 11-7-2019
Location: Connecticut, USA
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Mood: Moving out and setting up shop in my new chemistry hobbit hole
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| Quote: |
From: Bmoore55
I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS.
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I would be interested in that, but I'd need to check state laws for sending packages like that. My own school lab offers the service, but its
expensive even for faculty. Some charge like 200$ for a small batch of samples.
I am the one who boils to dryness, fear me...
H He Li B C(12,14) Na S Cl Mn Fe Cu Zn Ba Ag Sn I U(238)
"I'd rather die on my feet than live on my knees" -Emiliano Zapata
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Ubya
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for amateur chemists analysing their compounds is the hardest part, you could use wet chemistry sometimes, but you can never be sure 100% to what you
have.
you could try with an used MS system, some of the members here have one, or multiple instruments, but still, complex molecules can be hard to
identify, expecially if you are dealing with a mixture.
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arkoma
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Quote: Originally posted by aab18011  | | Quote: |
From: Bmoore55
I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS.
|
I would be interested in that, but I'd need to check state laws for sending packages like that. My own school lab offers the service, but its
expensive even for faculty. Some charge like 200$ for a small batch of samples. |
Hello? State law does not cover US mail. Troll?
"We believe the knowledge and cultural heritage of mankind should be accessible to all people around the world, regardless of their wealth, social
status, nationality, citizenship, etc" z-lib
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aab18011
Hazard to Self
Posts: 74
Registered: 11-7-2019
Location: Connecticut, USA
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Mood: Moving out and setting up shop in my new chemistry hobbit hole
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| Quote: Originally posted by arkoma | | Quote: Originally posted by aab18011 | | Quote: |
From: Bmoore55
I could analyze your samples for you. I have my own lab with and NMR, FTIR, and GCMS.
|
I would be interested in that, but I'd need to check state laws for sending packages like that. My own school lab offers the service, but its
expensive even for faculty. Some charge like 200$ for a small batch of samples. |
Hello? State law does not cover US mail. Troll? |
No no, I'm not troll. I am pretty serious about this too because I am trying to put together a research proposal and give it to my advisor, but I need
proof that my syntheses are correct. I was supposed to be working on a way to use indole as a carrier for various ligands our lab is interested in.
| Quote: |
for amateur chemists analysing their compounds is the hardest part, you could use wet chemistry sometimes, but you can never be sure 100% to what you
have.
you could try with an used MS system, some of the members here have one, or multiple instruments, but still, complex molecules can be hard to
identify, expecially if you are dealing with a mixture.
|
Yeah, I was thinking about the wet chem identification, and I will be using some methods. I need to wait until I can acquire some more chemicals,
Sigma makes using dept. based discounts a nightmare.
I am the one who boils to dryness, fear me...
H He Li B C(12,14) Na S Cl Mn Fe Cu Zn Ba Ag Sn I U(238)
"I'd rather die on my feet than live on my knees" -Emiliano Zapata
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neptunium
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Location: between Uranium and Plutonium
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anybody interested in some GC/MS analysis ?
https://www.youtube.com/watch?v=R4uNld5OAaQ
I guess I should`ve posted here first!
https://www.youtube.com/watch?v=2F4z26C9mkI
i don`t stop by as often as I used to but ... here you go..
[Edited on 24-9-2024 by neptunium]
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neptunium
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Registered: 12-12-2011
Location: between Uranium and Plutonium
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This is the Thermo Finnigan Trace 2000 combo as explained in the vids..
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Sulaiman
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| Quote: Originally posted by aab18011 | Hi, I am new here and I am setting up my own personal lab....
I plan on doing my own reactions and trying to modify syntheses, and some of my products come out so different that it is hard to determine what
chemicals I am making. I was wondering if there are some nice machines that can be used for this......
My problem is making sure that my products are what I predicted them to be. |
welcome
The instant that you deviate from a published procedure in the minutest detail,
good luck predicting products 
Maybe tlc or mp are suitable in this specific case?
I'm still only doing entry level inorganic chemistry and I'm rarely confident of the purity of my products.
CAUTION : Hobby Chemist, not Professional or even Amateur
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