Many substances release water slowly or only at high temperatures, making them unsuitable for direct Karl Fischer titration;

Some substances have low solubility in alcohol solutions, in which case traditional methods usually recommend complex sample preparation processes or the use of harmful cosolvents;

In addition, especially in some pharmaceutical factories and material production plants, there is also a problem of mutual contamination between samples. There are often interfering substances in its samples that affect the normal progress of the Karl Fischer reaction, causing side reactions with KF reagents and releasing water or consuming iodine, resulting in incorrect results.

The 885 fully automatic headspace heating card type moisture determination system can solve the above problems and is specifically suitable for moisture determination of these difficult samples.

Instrument Features

·Fully electronically controlled, experimental conditions are completely repeated

·Injection bottle technology to avoid contamination of titration cup and Karl Fischer chamber

·The pipeline design has a small dead volume, no portability, and no memory effect

·Easy to operate, sequentially complete sample heating treatment

·Specially suitable for moisture determination of these difficult samples.

·According to the moisture content of the tested sample, Coulomb method or volumetric method can be selected for moisture determination.

·Easy to operate

·Small space occupation. After weighing the tested sample, place it in the sample bottle and seal it, then place it on the sample tray. Press the start button, and the instrument will automatically start processing in sequence.

·Through panel control, only the heating temperature, carrier gas flow rate, and number of samples to be measured need to be set to begin the measurement. At the same time, it can also be connected to a balance to automatically read the weight of the sample.

·Injection bottle technology

·Using sample bottles, the Karl Fischer oven will not be contaminated by the sample, so it will not be carried and there will be no memory effect. In addition,

·The sealed bottle stopper coated with polytetrafluoroethylene effectively prevents the interference of moisture in the atmosphere.

·The sample bottle adopts a spiral interface design. After the sample measurement is completed, the sample bottle can be easily opened and cleaned repeatedly

·To use, only the internal PTFE gasket needs to be replaced, reducing cost consumption.

·Heating companion tube

Effectively prevent condensation of water vapor during the process of importing from the sample bottle into the titration cup, avoiding cross contamination between samples.