AQUA 40.00 Vario

Karl-Fischer-Titrators

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AQUA 40.00 Vario

Product description

TOP 3 ADVANTAGES

Closed-loop circulation of extraction gas
Manual and automatic version available
Easy to adapt to different vial sizes

Water determination by headspace technique

The AQUA 40.00 Vario combines the Karl Fischer Titration with the headspace technique. This offers a wide range of interesting applications to determine moisture in solid and pasty samples, oils and viscous compounds.

The sample preparation takes place using the dynamic headspace technique. The sample - in a closed vial - is placed into the headspace oven and tempered.

A closed-loop gas circulation with dry carrier gas flows across the sample and transports the extracted water completely into the measuring cell, where the analysis is carried out by titration according to the Karl Fischer method.

It does not require time-consuming sample preparation:

Weigh out the sample into the headspace vial and close it
Place the vial in the device (manually or automatically)
Prepare the measurement and start it

AQUA 40.00 Vario PLUS (automatic version with autosampler)

AQUA 40.00 Vario (manual version)

Closed-loop gas circulation

The system has the unique advantage of circulating the extraction gas in a closed loop. Any additional gas drying is not necessary. The internal carrier gas for the extraction is continually titrated to dryness within the closed loop. The total dryness of the gas enhances the moisture release from the sample. Sensitive samples can be heated out very gently. All these advantages result in reducing reagent consumption considerably.

Distinction of binding forms

Temperature-controlled heating procedure, e. g. with temperature program, can be defined individually by the user. Such a temperature program reveals in which way the water in question is bonded to the sample substance. You can distinguish between chemically bonded water of crystallization and adsorbed surface water.

Advantages

Reduced reagent consumption
No evaporation of methanol from the reagent
Additional gas drying is not required due to closed-loop circulation of extraction gas
Stand-by titration for automatic conditioning and
Easy blank tests
Short measuring times, even with complicated samples
Suitable for 2 R - 50 R vials
Easy automation with autosampler

Features

Configurable temperature programmes
Automatic identification of interchangeable oven and sample plate of the autosampler
Priorized express samples can set individually by user
Software complies with requirements of FDA to 21 CFR Part 11 (Software with user-specific access, routine methods for individual and definable user levels, profound documentation and archiving of all measured data)