Gas chromatography
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The machine we selected is the Beifen 3400 model, and a six-way valve is used for sample injection. What is the reason for the larger values in the calibration gas injection data that we have chosen? Using the Agilent 7890 for trace sulfur analysis: it won’t ignite after startup and warming up?
We have encountered this phenomenon as well; you can try adjusting the ratio of hydrogen to air. For us, the ratio is 60 for hydrogen and 100 for air. Additionally, check the purity of both hydrogen and air – if their purity is not sufficient, ignition will not occur.
The faults that prevent ignition can be attributed to the following reasons: problems with the ignition component, no output from the ignition source or power supply, mismatch in the gas pathways before and after ignition, hydrogen leakage, blockages in the gas pathways, and short circuits in the wiring of the ignition circuit
It won’t catch fire; this is a common issue as mentioned on the 2nd floor, so you can try adjusting it