
Our Perkin-Elmer DSC 7 runs the Pyris software platform, and is equipped with the hardware and software to conduct Dynamic DSC (DDSC). In DDSC, a modulated temperature profile is applied to the sample, rather than a straight heating ramp, and the response of the sample analyzed by Fourier transformation. DDSC is particularly useful for separating overlapping thermal events, such as melting and recrystallization. Subambient operation of the DSC 7 normally employs a Perkin-Elmer Intracooler II, which allows reliable data to be acquired down to approximately -40°C; for even lower temperatures, a liquid nitrogen bath can be employed, which allows the collection of data down to approximately -150°C.