sekio
Bluelight Crew
- Joined
- Sep 14, 2009
- Messages
- 21,993
[dead image link]
Ok, knock yourselves out. The top half is ion traces of some diagnostic ions. The bottom half is the subtracted EI mass spectrum. It was acquired on an Agilent 6890/5973.
m/z 281 is there, but it's signal to noise ratio is about the same as in this thread. 8)
A couple of hints...
m/z 126 is the butylpyrrolidinium ion characteristic of pyrovalerones.
m/z 127 is methylenedioxyphenyl +6 Da. Of course, 127 is also the isotope peak of 126, but it's abundance is too high. MDPV has 121 instead of 127.
m/z 155 is methylenedioxybenzenecarbonyl + 6 Da. MDPV has 149 instead of 155.
m/z 238 results form the loss of a propyl radical from the molecular ion at 281. The propyl loss is characteristic of pyrovalerones. MDPV has 232 resulting from the loss of a propyl radical from the molecular ion at 275.
m/z 84 is a methylenepyrrolidinium ion arising from a propyl loss from m/z 126. I didn't show its ion trace because it was displayed in yellow and didn't print well.
Once again, this might be the Tan Stuff. It might just as well be something entirely different.
This is all the useful data I could fish out. It smells like contamination to me.
Edit: This stinks of contamination.
Last edited: