Research Article
Surface Characterization of Phenylpropanolamine Drug by Inverse Gas Chromatography
Table 2
The values of
(kJ/mol) for the n-alkanes and polar solutes on PPA drug in the temperature range 318.15–333.15 K.
| Solute | 318.15 K | 323.15 K | 328.15 K | 333.15 K |
| n-Hexane | 2.01 | 2.77 | 1.94 | 1.77 | n-Heptane | 3.62 | 4.3 | 2.92 | 2.47 | n-Octane | 6.88 | 6.9 | 4.07 | 2.99 | n-Nonane | 8.70 | 9.24 | 8.16 | 6.68 | DCM | 2.78 | 2.87 | 2.05 | 1.77 | TCM | 4.18 | 4.12 | 3.09 | 2.74 | AC | 2.2 | 2.87 | 2.16 | 1.91 | THF | 4.13 | 4.06 | 2.67 | 2.35 | EA | 4.39 | 3.28 | 2.48 | 2.24 |
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