FLOW CELL, DETECTOR, AND LIQUID CHROMATOGRAPH
First Claim
1. A flow cell comprising:
- a detecting portion, in which a sample fluid is irradiated with a detecting light;
an inflow portion leading the sample fluid into the detecting portion in a direction different from a flow direction of the sample fluid inside the detecting portion; and
an outflow portion leading the sample fluid out of the detecting portion in a direction different from the flow direction of the sample fluid inside the detecting portion;
in such a way that an emitting direction of the detecting light and the flow direction of the sample fluid inside the detecting portion are parallel to each other,wherein,the outflow portion is provided with one or more channels leading the sample fluid out of the detecting portion in a plurality of directions.
1 Assignment
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Accused Products
Abstract
In a liquid chromatograph, a flow cell, in which a direction of detecting light and a flow direction of a sample fluid are parallel to each other, and in which the flow direction of the sample fluid changes at the moment of the sample fluid flowing out of a detecting portion into an outflow channel and at the moment of the sample fluid flowing into the detecting portion from an inflow channel, is capable of suppressing a peak broadening of a chromatogram. A plurality of outflow channels are provided, which shorten a distance between a flow outlet and a flow bend in the sample flow. A plurality of inflow channels are also provided, some of which collide jets flowing into the detecting portion from the inflow channels and others of which produce a swirl of jets flowing into the detecting portion from the inflow channels.
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Citations
17 Claims
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1. A flow cell comprising:
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a detecting portion, in which a sample fluid is irradiated with a detecting light; an inflow portion leading the sample fluid into the detecting portion in a direction different from a flow direction of the sample fluid inside the detecting portion; and an outflow portion leading the sample fluid out of the detecting portion in a direction different from the flow direction of the sample fluid inside the detecting portion; in such a way that an emitting direction of the detecting light and the flow direction of the sample fluid inside the detecting portion are parallel to each other, wherein, the outflow portion is provided with one or more channels leading the sample fluid out of the detecting portion in a plurality of directions. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12)
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13. A flow cell comprising:
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a detecting portion, in which a sample fluid is irradiated with a detecting light; an inflow portion leading the sample fluid into the detecting portion in a direction different from a flow direction of the sample fluid inside the detecting portion; and an outflow portion leading the sample fluid out of the detecting portion in a direction different from the flow direction of the sample fluid inside the detecting portion; in such a way that an emitting direction of the detecting light and the flow direction of the sample fluid inside the detecting portion are parallel to each other, wherein; the inflow portion comprises channels connected to both ends of the detecting portion to lead the sample fluid into branched streams before the detecting portion to make the branched streams rejoin in the detecting portion; and the branched streams are led into the detecting portion in directions, which are offset from a direction to the central axis of the detecting portion, and which are symmetrical with respect to the central axis of the detecting portion.
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14. A detector comprising:
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a flow cell comprising; a detecting portion, in which a sample fluid is irradiated with a detecting light; an inflow portion leading the sample fluid into the detecting portion; and an outflow portion leading the sample fluid out of the detecting portion; a light source emitting the detecting light towards the detecting portion; and a photo detector receiving the detecting light, which has passed through the detecting portion, wherein; an emitting direction of the detecting light and a flow direction of the sample fluid inside the detecting portion are parallel to each other; the inflow portion leads the sample fluid into the detecting portion in a direction different from a flow direction of the sample fluid inside the detecting portion; and the outflow portion leads the sample fluid out of the detecting portion in a plurality of directions different from the flow direction of the sample fluid inside the detecting portion. - View Dependent Claims (15)
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16. A liquid chromatograph comprising:
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a fluid supply pump pumping a supply fluid; an injector mixing a sample with the supply fluid; a separation column processing a sample fluid sent from the injector; a detector detecting an intensity of a detecting light after an irradiation with the detecting light of the sample fluid processed by the separation column; and a recorder recording an output from a measurement of the sample fluid on the basis of the intensity of the detecting light detected by the detector, wherein; the detector comprises; a light source emitting the detecting light; a photo detector receiving the detecting light; and a flow cell comprising; a detecting portion, in which the sample fluid flows in such a way that an emitting direction of the detecting light and a flow direction of the sample fluid inside the detecting portion are parallel to each other; an inflow portion leading the sample fluid into the detecting portion; and an outflow portion leading the sample fluid out of the detecting portion; the inflow portion leads the sample fluid into the detecting portion in a direction different from the flow direction of the sample fluid inside the detecting portion; and the outflow portion leads the sample fluid out of the detecting portion in a plurality of directions different from the flow direction of the sample fluid inside the detecting portion. - View Dependent Claims (17)
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Specification