[lalapsycho]

I have the autotune chromatgram that was printed after the autotune was complete, tuning using PFTBA, structure (CH3CH2CH2CH2)3N.

3 peaks came off at m/z 69, 219, and 502.

My professor identified the 69 peak as CF3 and asked that we identify what the other peaks were in relation to the structure. I would just like to understand why the 69 peak is in relation to the CF3 of the molecule. Is it just in relation to the mass..16+ (19*3)? Using the atomic masses...

[lalapsycho]

I figured it out!

[rose55]

Yes, it is related to mass but actually 12+(3*19)=69

[JGK]

I have the autotune chromatgram that was printed after the autotune was complete, tuning using PFTBA, structure (CH3CH2CH2CH2)3N.

3 peaks came off at m/z 69, 219, and 502.

My professor identified the 69 peak as CF3 and asked that we identify what the other peaks were in relation to the structure. I would just like to understand why the 69 peak is in relation to the CF3 of the molecule. Is it just in relation to the mass..16+ (19*3)? Using the atomic masses...

It would also help if you had given the correct formula for PTFBA (N(CF₂CF₂CF₂CF₃)₃