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.
measuring cell, where the analysis is carried out by titration according
- 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
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
Applications
- Pharmaceutical products
- Biological substances
- Plastics
- Hygroscopic compounds
- Freeze-dried products, e. g. lyophilized cultures
- Oils and lubricants, creams, pastes
- Viscous materials (bitumen, tar, sludges)
- Powder and pellets
- Food
- Petrochemicals
Technical Specifications
| Sample dosing: | Headspace vials (size 2 R - 50 R) |
| Measuring range: | 1 μg bis 100 mg absolute |
| Resolution: | 0.1 μg |
| Reproducibility: | ± 3 μg for 10 ... 1000 μg, 3 % for > 1 mg |
| Temperature range: | 35 °C ... 300 °C (isothermal or with temperature programme) |
| Power supply: | 230 V, 50/60 Hz; 115 V, 50/60 Hz |
| Power input: | 250 W |
| Dimensions/Weight: | Manual version: 300 x 450 x 240 mm (B x H x T)/7 kg Automatic version: 420 x 450 x 460 mm (B x H x T)/17 kg |
| Device control: | PC software (PC not included in the scope of delivery) |