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The next big thing in mass spectrometry
Chemistry World ^ | 8 March 2013 | David Bradley

Posted on 03/17/2013 2:58:54 PM PDT by neverdem

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To: Zeneta

electrospray fartoid ionization mass spectrometry!


21 posted on 03/17/2013 8:06:41 PM PDT by Wanderer99
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To: neverdem

Boy, this is exciting stuff. Too bad it’s in a foreign language.


22 posted on 03/17/2013 8:15:57 PM PDT by Rocky (Obama is pure evil.)
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To: BipolarBob

Now, when some thug gets gunned down by an armed citizen defending himself from a mugging, the media can say, “He was an aspiring mass spectrometer.”


23 posted on 03/17/2013 8:21:40 PM PDT by Lancey Howard
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To: Wonder Warthog
Okay, but the molecule can’t be intact. At least in my limited understand of how a mass spec works you ionize the sample and then based on charge, separate the resulting ions.

How can you infer what the molecule is made of by preserving it? Without ionizing it?

Do you hit the molecule with different wavelength photons?

24 posted on 03/17/2013 8:27:18 PM PDT by dhs12345
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To: Rocky; dhs12345; BipolarBob; A Formerly Proud Canadian; BenLurkin
Rocky wrote, "Boy, this is exciting stuff. Too bad it’s in a foreign language."

Mass Spectrometry

One of the great things about the Internet is that you can look stuff up from reputable sources.

25 posted on 03/17/2013 9:42:36 PM PDT by neverdem ( Xin loi min oi)
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To: dhs12345
"Okay, but the molecule can’t be intact. At least in my limited understand of how a mass spec works you ionize the sample and then based on charge, separate the resulting ions."

"How can you infer what the molecule is made of by preserving it? Without ionizing it?

Correct. The problem is that TOO MUCH fragmentation loses needed information. You want at least SOME of the parent molecules to be intact or largely so, yet be ionized. So you have somewhat contradictory needs, and are working on balancing them.

And the bigger the molecule, the more difficult that balancing act gets.

"Do you hit the molecule with different wavelength photons?

AFAIK, that has not been used, or not widely used. Lasers HAVE been used to blast things off surfaces to get composition analysis, as with metal samples.

26 posted on 03/18/2013 5:10:54 AM PDT by Wonder Warthog
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To: Wonder Warthog

Cool. Thanks for explaining it to me.


27 posted on 03/19/2013 4:30:16 PM PDT by dhs12345
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To: neverdem

Cool. The closest I got to one of them was in Physics lab and of course, the theory behind it.


28 posted on 03/19/2013 4:34:23 PM PDT by dhs12345
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