How to Interpret Abnormal Gas Chromatograph Fluctuation

1. If the noise decreases after lowering the column temperature, determine if the carrier gas is not pure enough or the column is not aged enough.
2. If the noise decreases or disappears after the flame goes out, ask yourself if the detector itself is making too much noise.

3. If the noise is still very large after the flame is extinguished, consider the circuit from the detector to the amplifier If there is a problem in this section of the board

4. When changing ranges and the noise is still basically unchanged, it is necessary to determine whether the signal line is faulty, the amplifier circuit board is faulty, the output signal line is faulty, and the integrator is faulty.
5. If the noise decreases after lowering the injector temperature, check the injector for contamination

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