The AKF-CAS6 multi station fully automatic moisture analyzer is a Coulombic Karl Fischer moisture analyzer with an automatic sampling system launched by Shanghai Hegong Scientific Instrument Co., Ltd. It can be used for simple, fast, and reliable Karl Fischer Coulombic moisture determination. The instrument uses the classical Karl Fischer principle to determine the moisture content in the sample by reacting the electrolytic reagent with the moisture in the sample. It can measure the moisture content of various insoluble samples in industries such as lithium batteries and petrochemicals. It has the advantages of high measurement accuracy, fast speed, and stable and reliable measurement data.

When determining the moisture content according to the Karl Fischer method, water will react with iodine and sulfur dioxide in the presence of methanol and organic bases according to the following chemical reaction equation:

H2O + I2 + SO2 + CH3OH + 3RN→[RHN]SO4CH3 + 2[RHN]I -----(1)

In terms of volumetric titration, iodine is added as a titrant, and during Coulombic titration, iodine is produced by electrochemical oxidation of the electrolytic cell

2I- → I2+ 2e -----(2)

As long as there is water in the electrolyte, the iodine produced will undergo a chemical reaction according to the chemical reaction equation (1). I2 and H2O will react with each other in a 1:1 ratio. According to Faraday's law, the amount of iodine produced is 10.72 ° C · 1 μ g H2O, which is proportional to the charge. Therefore, the current consumption can be used as the basis for measuring moisture content.

Once all the water participates in the chemical reaction, a small excess of iodine will form in the anode region of the electrode. The excess iodine can be measured using a polarized electrode, and electrolysis will stop, with no more iodine produced.

1. HOGON intelligent detection technology: automatic balancing, automatic detection, adaptive environment drift, automatic adjustment of detection accuracy

2. The all-new sixth generation electrolytic control capability has improved detection sensitivity, with an extremely low moisture detection limit and a moisture accuracy of 0.01ug. It can also adapt to various electrolytes

3. The HOGON AS-36HD headspace sample evaporator has temperature control modes such as constant temperature and multi-stage rise, as well as over temperature protection function

4. Equipped with multiple measurement methods, it can adapt to various detection needs such as gas, liquid, solid samples, etc

5. Intelligent status detection, hardware intelligent protection, abnormal termination, timed stop and other capabilities effectively extend the product's service life

6. Android and Windows versions of multi system operating software are optional, with strong customization capabilities. The software can provide customized services for special needs customers, including communication protocols, report formats, operation process habits, automatic liquid addition and discharge, and other specific functions

7. Convenient to use, with the option to choose between internal or external gas sources. The analysis sequence can be edited, stored, and called upon. Sample analysis priority can be defined, and automatic blank determination and blank deduction can be performed

8. Equipped with vacancy detection function, injection puncture is not performed for workstations without sample bottles placed. The unique injection needle design can effectively avoid needle blockage and breakage during the testing process