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- Posts: 1
- Joined: Sat Sep 26, 2020 1:50 pm
I am developing a method to determine nitrosamines using Headspace - GC - MS with single quadrupole.
I would like to know if the following conclusions I reached are correct:
- The concentration of the sample is directly proportional to the number of points obtained for a certain peak: As the concentration increases, the number of points increases and it looks more defined.
- The Dwell Time and the Split are inversely proportional to the number of points of the peak: By increasing the Dwell Time and the Split, the number of points decreases.
Also I would like to know if the Gain Factor affects the noise signal since I noticed that when trying to increase the number of points in the peak by reducing the dwell time I can only reduce it to 120 ms, a shorter dwell time provides a more defined peak with more points but with much more noise, does that mean that to reduce the dwell time to a minimum I must reduce the gain factor to a minimum? I currently use a gain factor 15.