Liquid chromatograph with fraction collector
AssigneeShimadzu Corporation
InventorMasato Kobayashi
Life of this patent
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Abstract
A fraction collecting device for a liquid chromatograph has a splitter disposed downstream to a chromatographic column and serving to split the flow from the column into two flow routes individually connected to a mass analyzer serving as a detector and a fraction collector. A plurality of pipes each having a different flow resistance and being connected in parallel with respect to one other are inserted in either of these two flow routes. A control unit serves to select one of these pipes according to inputted parameters indicating the conditions of liquid chromatography to be carried out and controls valves so as to connect this selected one of the pipes to the column through the splitter.
Claims2
A fraction collecting device for a liquid chromatograph, comprising:
- a column for chromatographically separating components;
- a mass analyzer;
- a fraction collector;
- a splitter connected downstream to said column to split a flow from said column into two flow routes which are individually connected to said mass analyzer and to said fraction collector;
- a plurality of pipes each having a different flow resistance, said pipes being connected in parallel and inserted into either of said two flow routes;
- switching means for connecting a different one of said plurality of pipes to said column through said splitter;
- and
- a control unit serving to select one of said plurality of pipes and causing said switching means to connect said selected pipe to said column through said splitter.
The fraction collecting device of claim I wherein said control unit preliminarily stores information relating different conditions for effecting liquid chromatography with each of said plurality of pipes.
Dependencies are inferred from the claim text.