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Cours de Chromatographie en Phase Gazeuse (L2)

Chromatographie en Phase Gazeuse (CPG) - LISA

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<strong>Chromatographie</strong> <strong>en</strong> <strong>Phase</strong> <strong>Gazeuse</strong> (CPG)<br />

2. Gran<strong>de</strong>urs cinétiques<br />

•Equation <strong>de</strong> Van Deemter‐Golay<br />

H=A+B/u + Cu<br />

u vitesse moy<strong>en</strong>ne du gaz vecteur = L/t m<br />

A= terme <strong>de</strong> diffusion turbul<strong>en</strong>te (remplissage)<br />

B= terme <strong>de</strong> diffusion longitudinale<br />

C= terme e <strong>de</strong> résistance éi eau transfert <strong>de</strong> matière aièe<br />

A,B,C coeffici<strong>en</strong>ts <strong>de</strong> contribution à l’élargissem<strong>en</strong>t <strong>de</strong>s pics<br />

Université <strong>de</strong> Paris Val 12 <strong>de</strong> Val Marne <strong>de</strong> Marne Faculté <strong>de</strong>s Sci<strong>en</strong>ces et technologie Faculté <strong>de</strong> Sci<strong>en</strong>ces 9 et 16 Technologie mars 2009

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