JPS5857750U

JPS5857750U - Gas chromatograph with automatic valve

Info

Publication number: JPS5857750U
Application number: JP14830681U
Authority: JP
Inventors: 日永　康
Original assignee: 電子科学株式会社
Priority date: 1981-10-06
Filing date: 1981-10-06
Publication date: 1983-04-19

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図は溶媒を除去するた玩の自動弁装置を組　　　□
み込んだガスクロマトグラフ−質量分析の実施例で、自
動三方弁の出口が真空ポンプを介して外部につながって
いる状態（Ａ状態）を示す。第２図は同じ例で、三方弁
の出口がインターフェイスを介して質量分析計１こつな
がっている状態（Ｂ状態）を示す。第゛３図は１個の三
方弁の代りに、２個の開閉弁を用いたガスクロマトグラ
フ−質量分析計の実施例である。第４図はインジェクタ
、カラム、スイッチ、タイマ、自動三方弁から成る試料
導入系２組を持ったガスクロマトグラフ−質量分析計の
実轡例、第５甲はターレット式電気炉の中に組み込まれ
た、インジェクタとカラムから成る２組の導入系と、ス
イッチ、タイマ、自動三方弁、真空ポンプ、インターフ
ェイス、質量分析計から成る１組の制御、検出系を組合
せて成るガスクロマトグラフ−質量分析計の実施例であ
る。Figure 1 shows a toy automatic valve device that removes solvent. □
This is an example of a gas chromatograph-mass spectrometry system in which the automatic three-way valve is connected to the outside via a vacuum pump (state A). FIG. 2 is the same example, showing a state in which the outlet of the three-way valve is connected to one mass spectrometer via an interface (state B). FIG. 3 shows an embodiment of a gas chromatograph-mass spectrometer using two on-off valves instead of one three-way valve. Figure 4 is a practical example of a gas chromatograph-mass spectrometer with two sets of sample introduction systems consisting of an injector, column, switch, timer, and automatic three-way valve. Implementation of a gas chromatograph-mass spectrometer consisting of two sets of introduction systems consisting of an injector and a column, and one set of control and detection systems consisting of a switch, timer, automatic three-way valve, vacuum pump, interface, and mass spectrometer. This is an example.

Claims

[Scope of utility model registration request]

(1) When the injector is placed near the chromatographic column and the microsyringe for sample injection inserted into the injector, and the plunger of the syringe is pressed.
. a switch that detects and outputs a timer, a timer that is started and can set a first time T, and a second time T2; a valve stem is connected to the outlet of the column; One of the outlets has an automatic three-way valve connected to a drain, such as a vacuum pump, and the other to a detector or an interface placed in front of the detector, and by the signal of a timer activation,
Between To and T1, the column connects to the drain.
Between T□ and T2 (7), the three-way valve operates so that the column connects to the detector or interface, and after T2, the three-way valve operates so that the column connects to the drain again. A gas chromatograph characterized by:

(2) an injector, a chromatographic column, a switch that detects the movement of the plunger of a syringe inserted into the injector, a timer that is started by this switch and sets two times, and a valve whose inlet is connected to the column. A plurality of sample introduction systems each consisting of an automatic three-way valve connected to the outlet and controlled by a signal from the timer are provided, and two outlets A, A', A'', . . .
... is connected to the drain, and the other outlet B, B'. B “, . . . are connected to a detector or an interface (1)
) gas chromatograph.