GCMS :
Frequently Asked Questions
- What does m/z mean?
- What are the measurement principles of MS?
- Why are there decimal points in MS data?
- With regard to resolution; What does R > 2M mean? Specifically, just how good is R > 2M?
- What is S/N?
- Please explain the principles, advantages, and disadvantages of EI, CI, and NCI easily.
- Please explain the principles, advantages, and disadvantages of EI
- Please explain the principles, advantages, and disadvantages of CI
- Please explain the principles, advantages, and disadvantages of NCI
- What are the QPMS advantages compared to the magnetic field type?
- NCI: Why is the ion source changed between NCI and PCI?
- NCI: When analysis is done without switching the NCI and EI ion source, don't some results deteriorate compared to normal EI?
- Sensitivity: Please provide data comparing the sensitivity of TIC to the sensitivities of other GC detectors (FID, FPD, ECD).
- What are the selection guidelines for reaction gases used with CI and NCI?
