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Author Topic: Mystery Compound GC/MS Spectra Inside!  (Read 127 times)

61-50-7

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Mystery Compound GC/MS Spectra Inside!
« on: December 01, 2010, 10:26:05 PM »
This spectra is of a bootleg oc 80mg pill.  It was done by a drug testing service in a friendly country.  Users report opiate effects similar to oxycodone with increased potency and onset.  TLC was done but I don't have pictures of the plates.  They said nothing showed up on TLC. 

GC-MS analysis was performed in an Agilent 5890 series II gas chromatograph coupled to an 5971A quadrupole mass spectrometer detector (Agilent). The gas chromatograph was fitted with an 6890 auto sampler injector. Samples were injected in slit mode into a 12m × 0.2mm i.d., 0.33 µm film thickness 5% phenylmethylsilicone column (ULTRA-2, Agilent Technologies). The oven temperature was programmed at 90ºC during 2min and increased 20ºC/min to 300ºC. Finally was maintained at 300ºC over 4min with a total run time of 14.50min. Insert liners packed with silanized glasswool were used. The injector and the interface were operated at 280 ?C. Helium was used as carrier gas at a flow rate of 0.48ml/min. The mass spectrometer was operated in electron impact ionization mode at 70 eV.

If anyone has any input please let us know. 

Having trouble attaching the image so here is a link:

hxxp://imgur.com/HXbco

Thanks!

Vesp

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Re: Mystery Compound GC/MS Spectra Inside!
« Reply #1 on: December 02, 2010, 01:06:02 AM »
Uploaded for the heck of it.  click here for main view; http://127.0.0.1/talk/index.php?action=dlattach;topic=1625.0;attach=3137;image
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overunity33

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Re: Mystery Compound GC/MS Spectra Inside!
« Reply #2 on: December 02, 2010, 01:43:11 AM »
This could be a very interesting opportunity..

embezzler

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Re: Mystery Compound GC/MS Spectra Inside!
« Reply #3 on: December 02, 2010, 06:25:29 PM »
Any chance you have raw data so that maybe someone with library access can help? I am, how can I put it, out of practice with GC-MS reports.

I dont have library access myself but I know a bee who might.
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61-50-7

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Re: Mystery Compound GC/MS Spectra Inside!
« Reply #4 on: December 02, 2010, 11:52:36 PM »
I'm asking for it, there is a language barrier so its taking a minute.  I'll post up the raw data if and when I get it. 

61-50-7

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Re: Mystery Compound GC/MS Spectra Inside!
« Reply #5 on: December 04, 2010, 02:01:37 AM »
Someone on another board thinks the data is suspect.  No solvent peak so it is likely none of the sample ended up in the detector.  Sorry to waste anyone's time.

Oerlikon

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Re: Mystery Compound GC/MS Spectra Inside!
« Reply #6 on: December 04, 2010, 03:13:49 AM »
Forged Oxycodone pills (mostly chinese) have fentanyl and its analogues as main ingredient.
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letters

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Re: Mystery Compound GC/MS Spectra Inside!
« Reply #7 on: December 10, 2010, 12:29:07 AM »
no solvent peak can simply mean that the operator enabled a useful solvent delay (option in most modern gc's to delay the outlet gas from reaching the detector until a preset time, to avoid seeing solvent peaks). it is common practice for most users.
The low abundance of this sample (below 50,000) suggests either too much dilution.
as you can see form the chromatogram, no substance comes out until ~14 minutes. depending on the method used (i.e. temp ramping program, starting temp, end temp, etc...), this is not so good, since generally you would want your compound to come out sooner.
regarding the MS printout, this is typical for column contamination, and breakdown. it happens usually when bases are injected, or when the columns heats up too much. I think you need to re-run this compound, try to dilute less, id say 50% less. also, if you have a software that enables it, try to remove baseline noise from the peak to get more accurate ms pattern.
hope this helps :)
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