Gas Chromatography (GC) (IUPAC Compendium of Chemical Terminology):
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Lecture 3. <strong>Gas</strong> chromathography.<br />
Selectivity – Interaction strength<br />
Phase Dispersion Dipole H-Bonding<br />
Methyl -CH 3 Strong None None<br />
Phenyl -C 6 H 5 Strong None Weak<br />
Cyanopropyl -C 3 H 6 CN Strong Strong Moderate<br />
Trifluoropropyl -C 2 H 4 CF 3 Strong Moderate Weak<br />
PEG -OCH 2 CH 2 O- Strong Strong Moderate<br />
Compounds – Properties<br />
Compounds Polar Aromatic H-Bonding Dipole<br />
Toluene No Yes No Induced<br />
Hexanol Yes No Yes Yes<br />
OH<br />
Phenol Yes Yes Yes Yes<br />
OH<br />
Decane No No No No<br />
Naphtalene No Yes No Induced<br />
Dodecane No No No No<br />
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