a thermoanalysis device , including a controllable temperature regulating device for the controlled change in the temperature of a sample to be investigated , a detection device for the continuous detection of at least one signal characteristic of a property of the sample during the change in the temperature , and a gas analysis device for investigating gases which are liberated from the sample . in order to enable an improved time - and temperature - resolved investigation of volatile components and decomposition products , provision is made according to the invention such that , during the change in the temperature of the sample , the temperature regulating device is controlled according to a control algorithm taking account of the detected signal and / or the gas analysis device is constituted so as to be controllable and is controlled according to a control algorithm taking account of the detected signal .