Use The Karl Fischer method is recognized as a classic method for detecting moisture with high accuracy. CBS-1A automatic Kane's micro moisture analyzer produced by Beijing Chaosheng Company can be widely used in trace water detection in many industries such as petrochemical, pharmaceutical, daily chemical, food, agriculture, commodity inspection, laboratory, etc. .
Detection principle
When determining the moisture content according to the Karl Fischer method, in the presence of methanol and alkali, the water will chemically react with iodine and sulfur dioxide according to the following chemical reaction formula:
H2O + I2 + SO2 + CH30H + 3RN → [RHN]SO4CH3 + 2[RHN]I
For volumetric titration, iodine is added as a titrant.
Working principle CBS-1A automatic Karl Fischer micro-moisture analyzer (hereinafter referred to as the measuring instrument) This instrument adopts the plunger type titration method according to the Karl Fischer capacity method and is controlled by a single chip microcomputer.
The titration process of the plunger collects the dynamic signal of the electrode, automatically determines the stopping point, and calculates the measurement result.
Instrument characteristics (1) The safe experimental environment system adopts the integrated design of the fully enclosed mode. By pressing the relevant parameter keys, the solvent can be automatically replaced (discharge the waste liquid and suck into the solution), avoiding the contact between the chemical reagent and the human body. A safe working environment makes your work easy and efficient.
(2) Full Chinese display, simple operation, higher automation. Chinese interface operation makes human-machine dialogue more close. The instrument has an automatic, real-time monitoring system that automatically returns to remove traces of moisture from the intruding cell. In the titration, you can complete the test by entering the parameters according to the operating instructions. The test time of one sample can be completed within 30 seconds to several minutes, and the test report is printed.
(3) The measurement result has high accuracy and good reproducibility. The instrument system is highly sealed and the titration drift value is extremely low. The trace water value of 0.15-500 mg can be measured to ensure the accuracy and reliability of the measurement results.
(4) The test sample can be the main function of liquid, solid, gas and paste.
Automatic detection of trace moisture content
Automatic aspiration and discharge of waste liquid
Print test report
Http://news.chinawj.com.cn Editor: (Hardware Business Network Information Center) http://news.chinawj.com.cn
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