Several important matters that should be noted when using sulfur analyzer

China Education Equipment Purchasing Network: Total sulfur content in coal is one of the important indicators for evaluating coal quality, and it is also one of the main components of air pollution. Therefore, coal production departments and coal departments such as chemical fertilizers, power generation, civil, coking and building materials attach great importance to the analysis of total sulfur in coal. This instrument uses iodine as the coulometric titrant. The Chinese character LCD shows the total sulfur content in the sample. Due to the new technology, the accuracy and stability of the measurement are much higher than the national standard, and the measurement time is about 5 minutes each time.

In addition to coal analysis, the sulfur determination instrument can also determine the total sulfur content of minerals, rocks, cement building materials, chemical products and other materials.

The automatic sulfur analyzer uses the coulometric titration principle. Due to the use of new technologies and various correction measures, the instrument has been greatly improved in many aspects, improving the accuracy of the instrument and simplifying the operation of the instrument.

And how should we protect the instrument and increase the life of the instrument in daily life? Then we need to pay attention to the following points:

1. Please check the air tightness before testing;

2. For the first sample, use medium and high sulfur coal to measure a waste sample;

3. The crucible should be cleaned before weighing, and unknown samples are strictly prohibited;

4. Before weighing the coal sample, the sample should be thoroughly mixed;

5. After completing the experiment, pour the electrolyte into a brown glass bottle to save and clean the electrolytic cell with distilled water;

6. The electrolyte can be reused, and the time used depends on the number of repeated uses and the sulfur content of the sample. When the PH value of the electrolyte is 1-3, it can be used, but when the PH value is less than 1, the electrolyte should be re-formulated;

7. The electrolytic cell should also be cleaned regularly. Generally wipe the dirt on the platinum electrode with cotton yarn and alcohol, and then thoroughly clean the pole pieces of the electrolytic cell with distilled water;

8. Avoid touching or damaging the electrode pads when handling or cleaning the electrolytic cell;

9. Regularly replace absorbent cotton; high-temperature components such as silicon carbon tubes, quartz tubes, quartz boats, and sample delivery rods should be replaced regularly;

10. If the instrument cannot work normally due to abnormal conditions, please contact the manufacturer if you cannot handle it yourself.

Xiao Nan reminded: If we often maintain our experimental instruments in daily life, the service life will be greatly increased.

(Xie Yinan / Editor)

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