Français
4. Ion detection and signal conversion
This is the intermediate step between discriminating ions according to their m/z ratio and displaying the mass spectrum of the species analyzed. Detectors are often referred to as the "eyes" of the analyzer. There are currently two main detection methods :
one takes into account the interaction between the ion and a detector surface, the properties of which enable the emission of a secondary electron or photon from the impact of the incident ion particle, and the conversion of the electronic or photonic signal into a measurable and amplifiable current to generate the mass spectrum after...
The Ultimate Scientific and Technical Reference
This article is included in
Analysis and Characterization
This offer includes:
Knowledge Base
Updated and enriched with articles validated by our scientific committees
Services
A set of exclusive tools to complement the resources
Practical Path
Operational and didactic, to guarantee the acquisition of transversal skills
Doc & Quiz
Interactive articles with quizzes, for constructive reading
Ion detection and signal conversion
Tandem mass spectrometry, MS-MS or MSn
Bibliography
Software tools
Molecular Weight Calculator, Version 6.50 by Matthew Monroe. Program distributed free of charge via download http://www.alchemistmatt.com/http://ncrr.pnl.gov/software/http://come.to/alchemistmatt
...Websites
NIST Chemistry WebBook. NIST standard reference database http://webbook.nist.gov/chemistry/
Main mass spectrometer manufacturers http://www.sisweb.com
Free documentary resource with a section dedicated to mass spectrometry
The Ultimate Scientific and Technical Reference
