STA L82

Supports high vacuum as well as inert, reducing, oxidising or humidified atmospheres

Optional pressurisation with up to 5 bar overpressure is possible

The analysis of certain corrosive conditions is possible with appropriate precautions

A heated capillary can be integrated as an option for residual gas analysis

Our STA L82 can be equipped with a proven sample robot that enables unattended sample measurements – for maximum sample throughput.

In this application acetylsalycylic acid (Aspirin) was measured by STA L82 with focus on the DSC-signal. By DSC, decomposition reactions can be observed and substances such as pharmaceuticals compounds can be investigated and identified. The measured ASS sample shows the following effects: At the beginning of the heating process, some adsorbed water is released, resulting in a weight loss of about 1 %.At 140°C the melting point of the aspirin is reached, resulting in an endothermic reaction, measured on the DTA trace.At 60°C, decomposition of the molten drug takes place in several stages.The decomposition products are volatile, resulting in a total weight loss of almost 100 %.