| Title | Design, development, and testing of an environmental P-T cell for infrared spectroscopy measurements |
|---|---|
| Publication Type | Articolo su Rivista peer-reviewed |
| Year of Publication | 2018 |
| Authors | De Angelis, S., Ferrari M., De Sanctis M.C., Biondi D., Boccaccini A., Morbidini A., Formisano M., Ammannito E., and Di Iorio Tatiana |
| Journal | Review of Scientific Instruments |
| Volume | 89 |
| ISSN | 00346748 |
| Keywords | Adsorbed molecules, article, controlled study, Effect of pressure, Environmental cells, heating, Infrared devices, Infrared spectroscopic, infrared spectroscopy, Near infrared spectra, Near infrared spectroscopy, Pressure-temperature conditions, Reflectance spectrum, Reflection, Spectroscopy measurements, T lymphocyte, T-cells, vacuum, Water absorption |
| Abstract | Water absorption bands due to superficially adsorbed molecules often dominate the near-infrared spectra of particulate minerals and rocks, when measured in the laboratory in the reflectance mode. In order to remove this, the spectral effect is thus necessary to acquire spectra of samples in vacuum and at higher temperatures. With the aim to accomplish this task, we developed an environmental cell to perform infrared spectroscopic measurements at controlled pressure-temperature conditions. Currently the cell allows one to measure reflectance spectra in the temperature range from room values up to 300 °C (573 K), in the pressure range of 103-10-6 mbar. The acquisition of spectra continuously in two distinct phases, namely, during a preliminary pumping stage (at room T) and subsequently during a heating stage (in vacuum), permits to highlight and characterize separately the effect of pressure and temperature on infrared spectra. © 2018 Author(s). |
| Notes | cited By 0 |
| URL | https://www.scopus.com/inward/record.uri?eid=2-s2.0-85055112781&doi=10.1063%2f1.5047038&partnerID=40&md5=24334adc177d21bc68121210f4f11872 |
| DOI | 10.1063/1.5047038 |
| Citation Key | DeAngelis2018 |
