AQUA 40.00 with Head Space Module and autosampler

AQUA 40.00 with manual Head Space Module

Water content of all types of samples

The combination of the AQUA 40.00 and the headspace technique offers a wide range of interesting applications to determine water content in solid and pasty samples, oils and viscous compounds.

It does not require time-consuming sample preparation: Weigh the sample in a headspace vial, close and seal the vial, and then administer it into the AQUA 40.00 headspace oven.

The analysis procedure starts with heating up the sample up to a temperature set prior. A carrier gas transports the water from the sample into the measuring cell where the water is titrated.

With the unique advantage of the system using the closed-loop-carrier gas circulation, any additional gas drying is no longer necessary. Hence, the carrier gas is continually titrated to dryness within the closed loop. The total dryness of the gas enhances the water liberation, and sensitive samples can be heated out very gently.

Water liberation becomes possible even at ambient temperature. All these advantages result in reducing reagent consumption considerably. Furthermore, temperature-programmed heating procedure 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, adsorbed surface water.

Applications

• Pharmaceutical products
• Biological substances
• Plastics
• Hygroscopic compounds
• Freeze-dried products, e. g. lyophilized cultures
• Oils and pastes
• Viscous materials
• Powder and pellets
• Food

Advantages

• Reduced reagent consumption
• Gas drying is not required due to closed-loop carrier gas circulation
• Isothermal or temperature-programmed heating procedure
• Gentle heating-out of unstable samples at low temperatures
• Frequent system check with standards before, during and after measurement series
• Short measuring times of complex samples as well
• Stand-by titration for automated conditioning and easy blank tests
• Software recognizes automatically current configuration and provides the relevant commands and options
• Software with user-specific access, routine methods for individual and definable user levels, profound documentation and archiving of all measured data
• Software complies with requirements of FDA to 21 CFR Part 11
• Customer-specific vials can be used (0.5 - 100 ml capacity)

Data sheet AQUA 40.00

Data sheet Head Space Module