JPS5978970U

JPS5978970U - Liquid chromatograph sample introduction device

Info

Publication number: JPS5978970U
Application number: JP17598482U
Authority: JP
Inventors: 勝彦斉藤
Original assignee: 株式会社島津製作所
Priority date: 1982-11-19
Filing date: 1982-11-19
Publication date: 1984-05-28

Abstract

(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Brief explanation of drawings]

第１図は、この考案の一実施例を示す液体クロ　−マド
グラフの試料導入装置における流路概略図、第２図ない
し第５図はその試料導入装置における試料量可変器の一
例を示す図であって、第２図はその側面図、第３図はそ
れを分解した状態を説明するための斜視図、第４因はそ
の一部品で弗るパツキンの正面図、第５図は同じく側面
図である。また第６図および第７図に従来の試料導入装置における
流路概略図を示す。１１・・・試料注入器、１２・・・試料保持部、１３・
・・カラム、１４・・・送液ポンプ、１５・・・ドレイ
ン、１６・・・流路切換バルブ、１７・・・試料量可変
器、２１・・・回転盤、２２・・・・パツキン０．２３
・・・固定盤、２４・・・軸、２５・・・溝、２６・・
・流出口、２７．　３０・・・貫通孔、２８・・・突起
、２９・・・流入口。FIG. 1 is a schematic diagram of a flow path in a sample introduction device for a liquid chromatograph showing an embodiment of this invention, and FIGS. 2 to 5 are diagrams showing an example of a sample amount variable device in the sample introduction device. Figure 2 is a side view of it, Figure 3 is a perspective view to explain the disassembled state, the fourth factor is a front view of the packing that opens with one part, and Figure 5 is a side view of the same. It is. Further, FIGS. 6 and 7 show schematic diagrams of flow paths in a conventional sample introduction device. 11... Sample injector, 12... Sample holding section, 13.
...Column, 14...Liquid pump, 15...Drain, 16...Flow path switching valve, 17...Sample amount variable device, 21...Rotary disk, 22...Packing 0 .23
...Fixed plate, 24...Shaft, 25...Groove, 26...
・Outlet, 27. 30...Through hole, 28...Protrusion, 29...Inflow port.

Claims

[Scope of Claim for Utility Model Registration] 1. A sample holder for holding a predetermined amount of a sample injected by a sample injector, a liquid pump for sending the sample held in this sample holder to a column, and a sample. In a liquid chromatograph sample introduction device comprising a flow path switching valve that selectively switches between a flow path from an injector to a drain via a sample holder and a flow path from a liquid pump to a column via a sample holder, A sample introduction device for a liquid chromatograph, characterized in that the sample holding section is provided with a sample amount variable device. 2. The sample amount variable device has a rotary disk, a gasket that rotates together with the rotary disk, and a stationary plate to which the gasket is pressed so that it can rotate and slide freely, arranged on the same axis. An end circular groove with the axis as the center mark for holding the sample is formed on the sliding surface side of the sample, and a through hole communicating with the outlet is provided at one end of the groove, and it is fixed to the gasket. A protrusion that locally fits into the groove of the stationary plate and separates the groove into two parts in terms of the flow path is provided on the sliding surface side of the plate. A sample introduction device for a liquid chromatograph according to claim 1, which is an instrument provided with a through hole communicating with a groove.