UV Fluorescent Instrument Usage Notice

UV fluorescence sulfur analyzer use Note 1. Users should always check whether there is carbon deposition in the gas pipeline at the outlet end of the cracking pipe and later. If there is carbon deposition in the cracking pipe, it can be cleared by combustion under high temperature conditions. If there is carbon deposition in the pipeline, timely Replace the new line.

2. Always inspect the air circuit to prevent obstruction or air leakage due to the aging of the air path and affect the analysis.

3. When using the single-point calibration method, it is preferable to use a sample that is close to the sample content for calibration.

4. Check the use of the cracking tube regularly. If the wall of the cracking tube becomes whitish and rough, it means that the service life of the quartz tube has reached and it should be replaced immediately. Usually low-level sample analysis has a higher requirement for cracking tubes. Roughening of the inner wall of the cracking tube can lead to a decrease in signal intensity, a decrease in sensitivity, and a decrease in resolution.

4. The injection speed is strictly controlled during the sample injection process to prevent carbon deposition in the quartz tube, fouling the membrane dryer and the reaction chamber.

5. Always change the silicone pad of the injection port to prevent air leakage.

6. For the same set of curves, the selected attenuation file must be the same, and the pre-amplification can be different. Changing the pre-amplification does not affect the analysis result.