| Автор | W L G Gent |
| Дата выпуска | 1969-01-01 |
| dc.description | Differential scanning calorimetry has been used to investigate the heat of fusion (ΔH<sub>f</sub>=7·12 kcal per g mol) and true melting temperature (T<sub>0</sub>=422·4°K) of pure cholesterol (99·5 mole%). In addition to analysis of the thermograph by an existing method a new and more rapid procedure has been used for evaluation of the purity of substances. Evidence is given that differential scanning calorimetry measurements at low scanning rates (0·5,1° min<sup>−1</sup>), followed by correction for premelting, are essential for estimation of ΔH<sub>f</sub> of substances not ultra-pure, at higher scanning rates large errors result. The entropy of fusion of cholesterol is similar to that of the simpler cholesteryl esters. |
| Формат | application.pdf |
| Издатель | Institute of Physics Publishing |
| Название | Thermal properties of cholesterol and estimation of impurity by differential scanning calorimetry |
| Тип | paper |
| DOI | 10.1088/0022-3735/2/1/317 |
| Print ISSN | 0022-3735 |
| Журнал | Journal of Physics E: Scientific Instruments |
| Том | 2 |
| Первая страница | 69 |
| Последняя страница | 72 |
| Аффилиация | W L G Gent; Biochemistry Department, Guy's Hospital Medical School, London |
| Выпуск | 1 |
