This manual describes the Varian 4000 MS mass spectrometer external ionization source, introduces the working principle of the external ionization source and how to use the external ionization source
The document serves as a user guide for the Agilent Technologies 4000 Mass Spectrometer when configured with an external ion source. It details the operational configurations, including External Electron Ionization (EI), Positive Chemical Ionization (PCI), and Negative Chemical Ionization (NCI). The text explains how ions are formed in the external source, transferred to the ion trap analyzer, and analyzed.
The guide provides step-by-step instructions for starting the instrument, performing diagnostic tests, adjusting system temperatures, and conducting mass calibration. It also covers method creation, data acquisition procedures, sample injection via a SampleList, and software interface usage for viewing parameters and activating methods.
| Document Version | Rev. 3 |
|---|---|
| Copyright Period | 2004-2006 |
The system supports electron ionization (EI), negative chemical ionization (NCI), and positive chemical ionization (PCI).
Ions are immediately drawn out of the ion source by tuned lenses and directed into an ion trap cavity where they are stabilized by an RF field.