動画検索
関連広告
検索結果
a trained chemist can identify whether or not the oil is pure.
So, let's dive into the science behind how a GC-MS instrument runs a sample.
First, a qualified chemist will inject a previously prepared sample into the injection port of the GCMS.
The injection port is heated to a point where the sample vaporizes immediately
The column provides a surface for compounds to interact.
When the compounds reach the end of the column, they hit a detector
Proportional peaks of each chemical component are recorded on a chromatogram.
After the molecules pass through the GC column
The ions then travel through an electromagnetic field that filters them based on their mass
That information is sent to a computer where a mass spectrum is created.