Title:
カラムユニット
Document Type and Number:
Japanese Patent JP7336104
Kind Code:
B2
Abstract:
To provide simple nozzles for a liquid chromatograph and the liquid chromatograph, which can feed eluent by selecting one column from a plurality of columns arranged in parallel.SOLUTION: Nozzles 2 for a liquid chromatograph are arranged at an upstream side and a downstream side of a column unit 1 and relatively move forward and backward to an end plate 12 of the column unit 1 in a same direction as a posture of the column 11. The column unit 1 includes a plurality of cylindrical columns 11 of which inner surfaces of at least both ends have elasticity and which is arranged in parallel, and a pair of end plates 12 that has a plurality of communication holes 121 continuous with respective ends of column 11 and sandwiches the respective ends of the plurality of columns 11. The nozzle 2 for the liquid chromatograph includes a reduced diameter portion 21 having a portion inserted so as to be pressed into the end of column 11, and an enlarged diameter portion 22 inserted into the communication hole 121 of the end plate 12. The reduced diameter portion 21 has a tapered portion 211 gradually enlarged from a tip edge to the enlarged diameter portion 22.SELECTED DRAWING: Figure 1
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Inventors:
Yutaka Takahashi
Takeshi Shiba
Takahiro Koumi
Takeshi Shiba
Takahiro Koumi
Application Number:
JP2022056474A
Publication Date:
August 31, 2023
Filing Date:
March 30, 2022
Export Citation:
Assignee:
Preppers Co., Ltd.
AUC Co., Ltd.
AUC Co., Ltd.
International Classes:
G01N30/60; G01N30/26; G01N30/46
Domestic Patent References:
| JP2001522710A | ||||
| JP2006292636A | ||||
| JP55135744A | ||||
| JP2013238468A |
Foreign References:
| WO2020175651A1 | ||||
| US20200182837 | ||||
| WO2017199335A1 | ||||
| WO2017017765A1 |
Attorney, Agent or Firm:
Nobuhiro Sakima
Sho Kasahara
Sho Kasahara