| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1209072 | Journal of Chromatography A | 2006 | 6 Pages |
Abstract
Near infrared emission spectroscopy (NIRES) has been investigated in the study of different materials employed in liquid chromatography. The samples were heated in a nitrogen atmosphere and the emission spectra were obtained using a lab-made NIRES instrument. Through principal component analysis (PCA) using the raw emission spectra, it was possible to distinguish different materials according to their physical and/or chemical characteristics. Linear relationships between emissivity spectra and the contents of the coating material or the specific surface areas was observed for stationary phases or bare silicas, respectively. Furthermore, the thermal stability of stationary phases could be followed in real time.
Keywords
Related Topics
Physical Sciences and Engineering
Chemistry
Analytical Chemistry
Authors
Fabiano Barbieri Gonzaga, Isabel C.S.F. Jardim, Celio Pasquini,