Jeep "N"...I want a Gas Chromatograph! - Off-Road Forums & Discussion Groups
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post #1 of (permalink) Old 08-28-2000, 02:39 PM Thread Starter
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Jeep \"N\"...I want a Gas Chromatograph!

[img]/wwwthreads_images/icons/cool.gif[/img] Ever since seeing the movie "Medicine Man" I have wanted to have a GAS CHROMATOGRAPH. I think they are the coolest things ever! There was no such thing when I took Chem in college.[img]/wwwthreads_images/icons/crazy.gif[/img] How about giving me your very old, worn out unit, and you can go buy a new one.[img]/wwwthreads_images/icons/crazy.gif[/img]

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post #2 of (permalink) Old 08-28-2000, 04:48 PM
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Re: Jeep \"N\"...I want a Gas Chromatograph!

What is a gas chromatograph? just curious.[img]/wwwthreads_images/icons/smile.gif[/img] Kyle

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post #3 of (permalink) Old 08-28-2000, 06:48 PM
 
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Re: Jeep \"N\"...I want a Gas Chromatograph!

I hate to tell you but I got one in my warehouse, white walls tires and four on the floor. serious , basically it is a furnance that burn chemicals and each chemical has a different burn charactic, like color and temp. the computer read these change and plot according to which I.D. the chemical compound.

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post #4 of (permalink) Old 08-28-2000, 07:58 PM
 
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Re: Jeep \"N\"...I want a Gas Chromatograph!

That's spectral analysis when you burn the test sample, and plot the colors and color changes.
All chemicals burn differently, so you can tell what's in something by burning it, and seeing what it does....
The machine you use to do it is a Gas Chromatograph.
They used to be real inaccurate, and the size of room, (a lot like computers), but they are brief case size now.

The bomb disposal guys just south of us have one for analysing samples from suspect chemicals and devices...
They have a real cool robot too!


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post #5 of (permalink) Old 08-28-2000, 09:17 PM
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Re: Jeep \"N\"...I want a Gas Chromatograph!

The difficult part is not the operation, but the calibration. With an unknown contaminant, you have to know what to calibrate for. In our case, we used a broad range, and the contaminants turned out to be 1,1,2 Trichloroethane and Trichloroethylene. There were other trace amounts of stuff, but those were the hot ones. Different contaminants show up at different times on the burn spectrum. Yeah, I wish I had one too, but the time to run one (time consuming), calibration standards, and operational gases make it a little cost prohibitive for the ordinary person. Besides, I need every cent to support my jeep habit.

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post #6 of (permalink) Old 08-28-2000, 09:57 PM Thread Starter
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Re: Jeep \"N\"...I want a Gas Chromatograph!

[img]/wwwthreads_images/icons/tongue.gif[/img] DRAT! And it looked so simple in the movie.[img]/wwwthreads_images/icons/tongue.gif[/img] I was in hopes of checking our CJ for any traces of 2,2,4, Trimethylpentane that might be in the fuel tank.[img]/wwwthreads_images/icons/crazy.gif[/img]

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post #7 of (permalink) Old 08-29-2000, 09:23 AM
 
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Re: Jeep \"N\"...I want a Gas Chromatograph!

If we keep talking about chemistry I might be able to justify being on this website during the day. Jeepn, what did you get your degree in?

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post #8 of (permalink) Old 08-29-2000, 09:39 AM
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Re: Jeep \"N\"...I want a Gas Chromatograph!

Civil Engineering and Cartography (map making). Kinda diverse, but lots of fun. I kinda fell into my present job after skool and the Army (and a few "interim jobs" to pay the bills). My present job requires the use of math, calc, physics, chemistry, writing, computer skills, and wrench turning, it's awesome and keeps me in tune so I don't forget (much).

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