Detector Systems

Flame ionization detector (FID)

Flame ionization detector (FID)

Figure 7-1

FID Collector

Assembly

Inlet

H2

Jet

Inlet

Flame Ionization Detector (FID)

The flame ionization detector (FID) responds to compounds that produce

ions when burned in a H •airflame. These include all organic compounds, although a few (e.g., formic acid, acetaldehyde) exhibit poor sensitivity.

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