Gas Chromatography Detectors

Introduction

Classification of Detectors

Detector Specifications

The Form of Detector Response

The Dynamic Range of the Detector

Detector Linearity

Determination of Response Index

The Incremental Method of Linearity Measurement

The Logarithmic Dilution Method of Linearity Measurement

Alternative Method for Specifying Detector Linearity

Detector Response

Detector Noise

Measurement of Detector Noise

Detector Sensitivity or Minimum Detectable Concentration

System Dispersion and Sensor Dispersion

Peak Dispersion from the Overall Detector Time Constant

Pressure Sensitivity

Flow Sensitivity

Temperature Sensitivity

Summary of Detector Criteria

Early Gas Chromatography Detectors

The Gas Density Balance

The Katharometer Detector

The Flame Thermocouple Detector

The b-Ray Ionization Detector Detector

The Emissivity Detector

The General Properties of GC Detectors

The Katharometer Detector

The Simple Gas Density Balance

The Flame Ionization detector

The Design of the FID

Electrode Configurations

The High Impedance Amplifier

The Response Mechanism of the FID

The Operation of the FID

The Nitrogen Phosphorus Detector (NPD)

The Emissivity or Photometric Detector

Ionization Detectors

The Simple or Macro Argon Detector Sensor

The Micro Argon Detector

The Thermal Argon Detector

The Helium Detector

The Pulsed Helium Discharge Detector

The Electron Capture Detector

The Pulsed Discharge Electron Capture Detector

The Radioactivity Detector

Some Less Common GC Detectors

The Thermionic Ionization Detector

The Discharge Detector

The Spark Discharge Detector

The Radio Frequency Discharge Detector

The Ultrasound Whistle Detector

The Dielectric Constant Detector

The Piezoelectric Adsorption Detector

The Absolute Mass Detector

The Surface Potential Detector

Closing Notes

References