JPH02109254U - - Google Patents
Info
- Publication number
- JPH02109254U JPH02109254U JP1863189U JP1863189U JPH02109254U JP H02109254 U JPH02109254 U JP H02109254U JP 1863189 U JP1863189 U JP 1863189U JP 1863189 U JP1863189 U JP 1863189U JP H02109254 U JPH02109254 U JP H02109254U
- Authority
- JP
- Japan
- Prior art keywords
- refractive index
- differential refractive
- pressure
- index detector
- storage tank
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000007788 liquid Substances 0.000 claims description 10
- 239000002699 waste material Substances 0.000 claims description 4
- 239000003480 eluent Substances 0.000 claims description 3
- 238000001514 detection method Methods 0.000 claims 1
- 238000010586 diagram Methods 0.000 description 1
Landscapes
- Investigating Or Analysing Materials By Optical Means (AREA)
Description
第１図は、本考案の全体構成の概略を示す説明
図である。第２図は、本考案における圧力計の構
造例の概略を模式的に示した正面図である。
１……溶離液貯槽、２……エアートラツプ、３
……送液ポンプ、４……インジエクター、５……
分析カラム、６……示差屈折率検出器、７……廃
液貯槽、８……記録計、９……流路、１１……圧
力計、１２……目盛板、１３……指針、１４……
設定圧力値、１５……導通接点、１６……流路、
１７……圧力発生路。
FIG. 1 is an explanatory diagram showing an outline of the overall configuration of the present invention. FIG. 2 is a front view schematically showing an example of the structure of the pressure gauge according to the present invention. 1... Eluent storage tank, 2... Air trap, 3
...Liquid pump, 4...Injector, 5...
Analysis column, 6... Differential refractive index detector, 7... Waste liquid storage tank, 8... Recorder, 9... Channel, 11... Pressure gauge, 12... Scale plate, 13... Pointer, 14...
Set pressure value, 15... Conduction contact, 16... Channel,
17...Pressure generation path.
Claims (1)
送液ポンプと、圧送される溶離液中に試料を導入
するためのインジエクターと、分析カラムと、さ
らに流下する移動相中の試料成分を示差屈折率検
出器を介して検出した後の廃液を貯留するための
廃液貯槽とをその流路中に有し、かつ、前記検出
器による検出結果を記録するための記録計を備え
てなる液体クロマトグラフ装置において、 前記示差屈折率検出器と前記廃液貯槽との間の
流路中には、当該流路中の圧力を測定するための
圧力計と、前記示差屈折率検出器に背圧を発生さ
せるための圧力発生路とを介在配置するとともに
、前記圧力計には、指針が設定圧力値に到達した
際にこれを検知して前記送液ポンプの駆動電源を
自動的に遮断するために必要な導通接点を設けた
ことを特徴とする液体クロマトグラフ用示差屈折
率検出器の背圧制御機構。[Scope of claim for utility model registration] At least an eluent storage tank, an air trap,
A liquid pump, an injector for introducing the sample into the eluent being pumped, an analytical column, and a storage of the waste liquid after detecting the sample components in the mobile phase flowing down through the differential refractive index detector. In a liquid chromatograph apparatus, the liquid chromatograph apparatus has a waste liquid storage tank in its flow path, and a recorder for recording detection results by the detector, the differential refractive index detector and the waste liquid storage tank. A pressure gauge for measuring the pressure in the flow path and a pressure generation path for generating back pressure in the differential refractive index detector are interposed in the flow path between the A liquid chromatograph characterized in that the pressure gauge is provided with a conduction contact necessary for detecting when the pointer reaches a set pressure value and automatically cutting off the drive power of the liquid pump. Back pressure control mechanism for differential refractive index detector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1863189U JPH02109254U (en) | 1989-02-20 | 1989-02-20 |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP1863189U JPH02109254U (en) | 1989-02-20 | 1989-02-20 |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH02109254U true JPH02109254U (en) | 1990-08-31 |
Family
ID=31233449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP1863189U Pending JPH02109254U (en) | 1989-02-20 | 1989-02-20 |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH02109254U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010175418A (en) * | 2009-01-30 | 2010-08-12 | Hitachi High-Technologies Corp | Detector for liquid chromatograph using flow cell and liquid chromatograph |
-
1989
- 1989-02-20 JP JP1863189U patent/JPH02109254U/ja active Pending
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2010175418A (en) * | 2009-01-30 | 2010-08-12 | Hitachi High-Technologies Corp | Detector for liquid chromatograph using flow cell and liquid chromatograph |
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