Knowra Differential scanning calorimetry Differential scanning calorimetry Differential scanning calorimetry measures the difference in heat flow between a sample and a reference as temperature changes. Its signals reveal thermal transitions such as melting and glass transition.
Heat capacity : Heat capacity is the energy required to raise a material's temperature by a specified amount. Changes in heat capacity produce baseline shifts, including the signal at a glass transition.
Glass transition : The glass transition is the change between a glassy, rigid state and a more mobile, rubber-like state in an amorphous material. DSC detects it as a step in heat capacity rather than a latent-heat peak.
Enthalpy : Enthalpy is a thermodynamic state function whose change equals heat transferred at constant pressure. Integrating a calibrated peak gives the enthalpy change of a transition.
Thermogravimetric analysis : Thermogravimetric analysis measures sample mass as a function of temperature or time. TGA reveals mass loss or gain, while DSC measures heat-flow differences.
Calorimetry : Calorimetry measures heat exchanged during physical or chemical processes. Differential scanning calorimetry is a differential, temperature-programmed form of calorimetry.
Melting : Melting is the phase transition from a solid to a liquid. The heat absorbed during melting commonly appears as an endothermic DSC peak.
Baseline (instrumental analysis) : A baseline is the signal expected from an instrument and sample when no resolved analyte event is present. Baseline placement affects peak areas and the apparent size of heat-capacity steps.
Isothermal titration calorimetry : Isothermal titration calorimetry measures heat released or absorbed as one solution is titrated into another at constant temperature. ITC studies binding and reaction energetics through injections, rather than temperature-programmed transitions.
Thermal analysis : Thermal analysis studies how material properties change with temperature or time under a controlled program. It places DSC alongside techniques that track mass, dimensions, or mechanical response.
Crystallization : Crystallization is the formation of an ordered solid phase from a liquid, solution, or less ordered solid. DSC can locate crystallization temperatures and measure the associated heat release.
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