Autosampler

Patent metadata

Field	Value
Publication number	US-2018052184-A1
Application number	US-201515557345-A
Country	US
Kind code	A1
Filing date	Mar 11, 2015
Priority date	Mar 11, 2015
Publication date	Feb 22, 2018
Grant date	—

Abstract

An autosampler includes: a sample cooling unit that is brought into thermally contact with a bottom surface of a sample rack so as to cool a sample accommodated in the sample rack; a condensed water receiver that has at least one hole on a bottom surface thereof, and is provided below the sample rack for receiving water condensed around the sample rack; a discharging passage configured in such a manner that a droplet falling from the at least one hole flows therein.

First claim

1 . An autosampler comprising:
a) a sample cooler that is brought into thermally contact with a bottom surface of a sample rack to cool a sample accommodated in the sample rack; b) a condensed water receiver provided below the sample rack, for receiving water condensed around the sample rack, with at least one hole formed in the bottom surface of the condensed water receiver; and c) a discharging passage formed in such a manner that a droplet falling from the at least one hole flows into this discharging passage.

2 . The autosampler according to claim 1 , further comprising:
d) a cover member that is disposed between the sample rack and the sample cooler to cover the sample cooler from above, the cover member being thermally conductive at least in its top surface.

3 . The autosampler according to claim 2 , wherein:
the condensed water receiver is placed below the cover member and receives water condensed on the cover member.

4 . The autosampler according to claim 3 , wherein:
the condensed water receiver includes an opening and a concave portion which is the bottom surface; a metal block included in the sample cooler is inserted into the opening; and the concave portion is formed in such a manner as to slope down toward the hole.

5 . (canceled)

6 . The autosampler according to claim 4 , wherein:
the cover member is mounted so as to cover top and side surfaces of the metal block; a bottom end of a side surface of the cover member is in contact with a top surface of the concave portion of the condensed water receiver; and condensation intensively occurs on and around the cover member that is cooled to a low temperature, and condensed water flows down along the side surface of the cover member to eventually flow into the concave portion of the condensed water receiver which is positioned in contact with the bottom end of the side surface of the cover member.

7 . The autosampler according to claim 4 , wherein:
the condensed water receiver further includes an inclined portion positioned outside the concave portion and slopes down toward the concave portion; and water generated due to condensation on an inner wall surface of the autosampler flows down along the inner wall surface and is introduced into the concave portion along the inclined portion of the condensed water receiver 4 , to be eventually discharged.

8 . A liquid chromatograph comprising the autosampler according to claim 1 .

9 . A liquid chromatograph comprising the autosampler according to claim 2 .

10 . A liquid chromatograph comprising the autosampler according to claim 3 .

11 . A liquid chromatograph comprising the autosampler according to claim 4 .

12 . A liquid chromatograph comprising the autosampler according to claim 6 .

13 . A liquid chromatograph comprising the autosampler according to claim 7 .

Assignees

• Shimadzu Corp

Inventors

• Tomita Masami

Classifications

• G01N35/10

  Devices for transferring samples {or any liquids} to, in, or from, the analysis apparatus, e.g. suction devices, injection devices {(G01N35/0099 takes precedence)} · CPC title

• G01N35/026 Primary

  having blocks or racks of reaction cells or cuvettes · CPC title

• G01N35/1095

  for supplying the samples to flow-through analysers (for a specific analyser see relevant groups, e.g. under G01N15/00, G01N21/00, G01N27/00, G01N30/00, H01J49/00) · CPC title

• G01N2030/8804

  automated systems · CPC title

• B01D15/12

  relating to the preparation of the feed · CPC title