The instruments of the SPS series are fully automated vapor sorption analyzer. The SPS provides precise gravimetric determination of the water sorption and desorption behaviour. Multiple samples are analysed in a test atmosphere of controlled temperature and relative humidity.
Vapor Sorption Analyzer – SPS
- Simultaneous analysis of up to 23 samples
- High accuracy and reproducibility with sample quantities from 3 mg up to 220 g
- Excellent surface-to-volume ratio of the samples for optimised sorption kinetics
- Excellent balance stability by drift compensation with an internal reference
- Parallel samples for separate analyses can be taken while measurement is running
- The easy to operate SPS instruments with their robust design enable reliable measurements with high accuracy
- Available sensor options increase the analysis capabilties of the SPS instruments
The requirements for balance resolution and load range are different for each application. The instruments of the SPS series are equipped with micro and ultramicro balances different in gravimetric resolution and load range. The available range of gravimetric resolution starts from 0.1µg up to 10µg.
For many applications, the sorption behaviour of materials at temperatures and climatic condtions far from room conditions is of interest. The large temperature range of the SPS enables to carry out vapor sorption analysis at extreme conditions starting from 5°C up to 60°C.
The transparent glass cover of the SPS can be equipped with a sensor mount plug. This sensor mount enables to attach additional analytical equipment to the SPS. This gives the opportunity to combine sorption data with other analytical methods like Raman spectroscopy or image acquisition.
The SPS23-100 is a highly sensitive system with a gravimetric resolution of 100 nanogram. It is designed for applications where only very small amounts of sample material are available like in pharmaceutical preformulation.
The SPSx-1µ Advance model shows best weighing peformance and a very high reproducibility of better than ±2µg at a gravimetric resolution of 1µg. Small and medium sized samples are measured with high precision over the full load range from 10mg up to 22g.
SPSx-1µ High Load
The SPSx-1µ combines high precision with a high dynamic load range of up to 220g. The High Load is the most versatile multisample sorption tester that enables the analysis of small amounts of powders as well as heavy and voluminous samples at high precision. The large load range enables the use of sample fixtures for special purposes.
The SPS11-10µ is a fast weighing and robust vapor sorption analyzer with a gravimetric resolution of 10µg. Medium and large sized samples are analysed at high precision. The large load range enables to use sample fixtures for special purposes like water vapor permeability of foils.
|Applications||Pharmaceutical research and preformulation||Pharmaceutical and food research, chemistry, ...||Food and chemical industry, material testing, permeability||Building physics, quality assurance, permeability|
|Temperature range||5 °C - 40 °C||5 °C - 60 °C||5 °C - 60 °C||5 °C - 60 °C|
|Humidity range||0% RH - 98% RH*|
|Min Weight range||3 mg||10 mg||30 mg||50 mg|
|Max Weight range||2000 mg||22 g||220 g||220 g|
|Number of samples||23||23 / 11||23 / 11||11|
|*: Maximum humidity level can only be reached with chamber temperatures close to room temperature|