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Ask for help:the material of mass spectrum of gcms

http://www.chromforum.org/viewtopic.php?t=23649

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Ask for help:the material of mass spectrum of gcms

Posted: Wed Oct 23, 2013 4:18 pm
by fds206303
Hi all
The TMS-Derivatized aliphtic acids mass spectrum is following:ions 73,75,117,129,132,145(base peak) ,207,
253,281,299,341,355. molecular weight :370. Formular:C22H46O2Si I hope a accurate material is interpreted in detail
thank you

Re: Ask for help:the material of mass spectrum of gcms

Posted: Wed Oct 23, 2013 5:36 pm
by Consumer Products Guy
Are you asking for confirmation that the peak is the trimethylsilyl derivative of nonadecanoic acid?

Re: Ask for help:the material of mass spectrum of gcms

Posted: Thu Oct 24, 2013 1:11 am
by fds206303
，nonadecanoic acid is not right,especillly for ion 253,281,299(all relatively high).
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