Help Topics GC - CGA21

Putting the device into operation

Safety considerations

Mounting the gas flow bubble meter

Electrical connections

Gas connection for TCD units

Gas connection for FID units

Operating the device

Device messages during power-on

Main window

Menu bar

The main display

Peaklist

Evaluating chromatograms

Status bar

How to conduct a GC measurement

Set measurement parameters

Preparations for measurement

Ignition oft the FID

Example measurement

General note using this software

Notes on injection

Determining the benzene content in supergrade petrol

Basic principles of gas chromatography

Principle of operation

The chromatographic separation principle

Temperature Program

Technique of gas chromatography

Injector without split

Injector with split

The separation column

Thermal conductivity detector (TCD)

Flame ionisation detector (FID)

Carrier gas flow

Maintenance work

Disassembling the FID

FID Device: Adjusting gas flows

WLD Device: Adjusting carrier gas flow

FID Device: Adjusting the split ratio

Maintaining the injector

Exchanging the capillary column

Using the bubble flow meter

Calculating the carrier gas flow