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  • HOME 
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  • >  GCMS ： Fundamentals of GC/MS
  • >  Hardware: Vacuum System

Hardware: Vacuum System

GCMS ： Fundamentals of GC/MS

Vacuum System

The mass spectrometer is housed in a vacuum. The basic knowledge of vacuum system, which is needed to understand GC/MS analysis, will be provided here.
  • Overview of Vacuum System
  • Why Does MS Require High Vacuum?
  • Turbomolecular Pump
  • Single Pumping System
  • Limitation Factors of Vacuum
  • Differential Pumping System
  • Single Pumping System and Differential Pumping System
  • Dual Inlet Turbomolecular Pump
  • TMP Pumping System and Column
 

Introduction: What is Mass ?

Introduction: Types of Ions

Ionization Modes: EI

Ionization Modes: PCI

Ionization Modes:NCI

Hardware: Ion Source

Hardware: Mass Analyzer

Hardware: Scan Mode and SIM Mode

Hardware: Detector

Hardware: Vacuum System

Parameters Expressing Performance of Mass Analyzer :Mass Resolution and Peak Width

Parameters Expressing Performance of Mass Analyzer :Signal-to-Noise Ratio

Qualitative Methods of GC/MS Analysis: Retention Time and Retention Index

Qualitative Methods of GC/MS Analysis: Library Search

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