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Topic: GC-MS - lower boiling point - benzo(e)pyrene  (Read 2441 times)

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Offline Emilio Ruggieri

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GC-MS - lower boiling point - benzo(e)pyrene
« on: February 25, 2016, 05:12:26 AM »
Good morning all,
after a lab experience with GC-MS and PAHs, my lab technician
 asked me an interesting question with I cannot sleep on night: "Explain why benzo(e)pyrene can be analysed with GC-MS when both the inlet temperature (300 C) and maximum oven temperature (315 C) is far below the boiling point of the compound (492 C)".
Please help me :-)
or at leasts give some hints

My best

Emilio
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Offline billnotgatez

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Re: GC-MS - lower boiling point - benzo(e)pyrene
« Reply #1 on: February 25, 2016, 06:52:07 AM »
You have to show your attempts or thoughts at solving the question to receive help.
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http://www.chemicalforums.com/index.php?topic=65859.0
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Offline Arkcon

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Re: GC-MS - lower boiling point - benzo(e)pyrene
« Reply #2 on: February 25, 2016, 07:04:00 AM »
OK, here's a hint:  is anything else happening the the inlet chamber and in the GC column?  Consider, when we perform liquid chromatography, are we always above the melting point of analyte? I mean,its liquid, right?  Can we analyze a solid by HPLC?  How?
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Hey, I'm not judging.  I just like to shoot straight.  I'm a man of science.
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