Molecular Peak and Fragmentation
An NCI spectrum generally shows a simple pattern. The figure is the spectrum of parathion, whose molecular weight is 291. The m/z 169 peak and the 154 peak correspond to the simply fragmented ions.
![Molecular Peak and Fragmentation](/an/sites/shimadzu.com.an/files/d7/ckeditor/an/support/gcms/67_1.gif)
An NCI spectrum generally shows a simple pattern. The figure is the spectrum of parathion, whose molecular weight is 291. The m/z 169 peak and the 154 peak correspond to the simply fragmented ions.