Installation and method for automatic preparation of samples

Details Installation and method for automatic preparation of samples Installation and method for automatic preparation of samples

G - Physics

01

N

G01N 1/40 (2006.01) B01D 15/00 (2006.01) B01D 15/08 (2006.01) G01N 1/34 (2006.01) G01N 21/11 (2006.01) G01N 30/00 (2006.01) G01N 33/18 (2006.01) G01N 35/08 (2006.01) C02F 1/00 (2006.01) G01N 30/06 (2006.01) G01N 30/40 (2006.01)

Patent

CA 2406667

The invention concerns an installation for automatic preparation of samples by liquid/solid column extraction. The invention is characterised in that the extracting device comprises on either side of the columns (3), a controllable valve (4) for switching from a column (3) to another to activate a column (3) adapted to ensure extracting when another column (3) is not operational, each switch valve (4) being connected to a common controllable direction reversing valve (5) designed to impose a flow direction on the fluid in any one of the columns (3) of the extracting device and return it to said valve (5) for dispensing the treated fluid to a selective circuit either to be rejected, or to be analysed.

L'invention concerne une installation pour la préparation automatique d'échantillons par extraction liquide/solide sur colonne. Cette installation est caractérisée en ce que le dispositif d'extraction comporte, de part et d'autre des colonnes (3), une vanne (4) pilotable de commutation d'une colonne (3) à une autre pour mettre en action une colonne (3) apte à assurer la fonction d'extraction lorsqu'une autre colonne (3) est en état de non fonctionnement, chaque vanne (4) de commutation étant reliée à une vanne (5) à inversion de sens commune pilotable agencée pour imposer un sens de circulation du fluide dans l'une quelconque des colonnes (3) du dispositif d'extraction et assurer son retour à ladite vanne (5) pour distribuer le fluide traité vers un circuit sélectif soit pour rejet, soit pour analyse.

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