A mass spectrometry method that allows monitoring of gases generated by vacuum heating/warming at different temperatures, with high sensitivity for detecting hydrogen and water.
TDS is a mass spectrometry method that allows monitoring of gases generated by vacuum heating/ramping at different temperatures. The TDS spectrum represents temperature on the horizontal axis and ion intensity on the vertical axis. This enables comparison of the amount of gas released and the desorption temperatures. Additionally, due to the vacuum environment, hydrogen and water can be analyzed with high sensitivity.
- It is possible to understand the relationship between the gases desorbed from the sample, the pressure, and the temperature at which they are generated.
- Since only the sample can be heated, the background is low, allowing for high-sensitivity analysis of low-mass molecules such as hydrogen, water, oxygen, and nitrogen.
- It is possible to estimate the composition of the gases generated from the sample and perform quantitative analysis (counting the number of molecules).