mass spectra of hydroxyacids
Posted: Fri Oct 29, 2010 2:46 pm
Hi all . . . I'm characterizing some plant analtyes, as TMS ether-esters derivitized with BSTFA, using GC-MS. I have a few hydroxyacids, probably dihydroxyacids or hydroxydiacids, that I am struggling to find published spectra for, be it in the literature or a library (all I have is NIST 98!).
I'm particularly interested in IDing the compound with the following dominant mass fragments. It elutes shortly after an 18C long trihydroxyacid.
Base peak: 73
Other dominant ions, in order of abundance: 317, 303, 129, 147, 204, 217, 551. I think 551 is the key.
There is a similar compound that elutes later with 565 instead of 551, so this must be another compound of the same type but with an extra C in the chain.
Please respond directly to Kevin (kem311@psu.edu).
Thanks!
I'm particularly interested in IDing the compound with the following dominant mass fragments. It elutes shortly after an 18C long trihydroxyacid.
Base peak: 73
Other dominant ions, in order of abundance: 317, 303, 129, 147, 204, 217, 551. I think 551 is the key.
There is a similar compound that elutes later with 565 instead of 551, so this must be another compound of the same type but with an extra C in the chain.
Please respond directly to Kevin (kem311@psu.edu).
Thanks!