JPS5994071A - Specimen liquid sampling apparatus in flow type analysis - Google Patents
Specimen liquid sampling apparatus in flow type analysisInfo
- Publication number
- JPS5994071A JPS5994071A JP20397582A JP20397582A JPS5994071A JP S5994071 A JPS5994071 A JP S5994071A JP 20397582 A JP20397582 A JP 20397582A JP 20397582 A JP20397582 A JP 20397582A JP S5994071 A JPS5994071 A JP S5994071A
- Authority
- JP
- Japan
- Prior art keywords
- specimen
- suction pipe
- sample
- motor
- fallen
- 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
Classifications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N35/00—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor
- G01N35/08—Automatic analysis not limited to methods or materials provided for in any single one of groups G01N1/00 - G01N33/00; Handling materials therefor using a stream of discrete samples flowing along a tube system, e.g. flow injection analysis
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- Physics & Mathematics (AREA)
- Health & Medical Sciences (AREA)
- Life Sciences & Earth Sciences (AREA)
- Chemical & Material Sciences (AREA)
- Analytical Chemistry (AREA)
- Biochemistry (AREA)
- General Health & Medical Sciences (AREA)
- General Physics & Mathematics (AREA)
- Immunology (AREA)
- Pathology (AREA)
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
Description
【発明の詳細な説明】
本発明は、フロー型イオン濃度検出器に適したサンプリ
ング装置に関する。DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a sampling device suitable for a flow type ion concentration detector.
フロー型イオン濃度検出器への試料溶液の供給には、測
定セルの一側にポンプを、他側に試料吸引管を設けたサ
ンプリング装置を用い、試料吸引管の下端に載置した試
料容器から試料溶液を測定セルに連続的に給送するよう
にしていた。しかしこのようなサンプリング装置では、
管路系や測定セルに付着している前回の試料溶液がスム
ーズに排出されないので、多量の試料溶液を吸引させて
残留試料の排出を促進しなければならず、試料の消費と
分析時間が大きくなるという問題があった。To supply the sample solution to the flow-type ion concentration detector, a sampling device with a pump on one side of the measurement cell and a sample suction tube on the other side is used. The sample solution was continuously fed to the measurement cell. However, with such a sampling device,
Since the previous sample solution adhering to the piping system and measurement cell cannot be drained smoothly, a large amount of sample solution must be sucked out to facilitate the discharge of the remaining sample, which increases sample consumption and analysis time. There was a problem.
本発明は、このような問題に鑑み、試料溶液と空気とを
交互に搬送することにより、残留試料を速やかに排出せ
しめ、もって少量の試料で短時間に分析することかでき
る改良されたサンプリング装置を提供することを目、的
とする。In view of these problems, the present invention provides an improved sampling device that allows residual sample to be quickly discharged by alternately transporting sample solution and air, thereby allowing analysis to be performed in a short time with a small amount of sample. The purpose and aim is to provide.
そこで、以下に本発明の詳細を図示した実施例に基づい
て説明する。Therefore, details of the present invention will be explained below based on illustrated embodiments.
第1図は、本発明の一実施例を示すものであって、図中
符号lは、試料吸引管2の先端を試料溶液に間欠的に浸
漬させる上下機構で、機枠3に可回動的に縦設した螺杵
4を後述する一■二、下限スイッチ6.7により正逆転
するモータ8に適宜の減速輪列9を介して連結し、この
螺杵4に螺合して−F下動するスライダ10によって測
定セル11の一側から試料容器C内に垂下する吸引管2
の一部を把持して、これを上下動するように・構成され
ている。なお、図中符号12は、スライダ10の先端に
設けた突片で、試料溶液の液面に対して吸引管6の先端
が上下する位置に取付けた上記の上、下限スイッチ6.
7を作動させるためのものを、13は、−ヒ、下限スイ
ッチ6.7からの信号によりモータ8の回転方向を切り
変えるモータ制御回路をそれぞれ示している。FIG. 1 shows an embodiment of the present invention, in which reference numeral l denotes a vertical mechanism that intermittently immerses the tip of the sample suction tube 2 in the sample solution, and is rotatably mounted on the machine frame 3. A screw punch 4 installed vertically is connected to a motor 8 which is rotated in forward and backward directions by a lower limit switch 6.7 via an appropriate reduction gear train 9, and is screwed onto this screw punch 4, as will be described later. A suction tube 2 is suspended into the sample container C from one side of the measurement cell 11 by a slider 10 that moves downward.
It is configured to hold a part of the body and move it up and down. Note that reference numeral 12 in the figure is a protrusion provided at the tip of the slider 10, which is attached to the upper and lower limit switch 6, which is attached at a position where the tip of the suction tube 6 moves up and down with respect to the liquid level of the sample solution.
Reference numeral 13 indicates a motor control circuit for switching the direction of rotation of the motor 8 in accordance with signals from the lower limit switches 6 and 7, respectively.
この実施例において、試料吸引管2の下方に試料容器C
を載皿し、モータ8を作動すると、スライダ10は下方
に移動を始め、これに取付けた試料吸引管2が降下する
。この時点でポンプPを作動させると、吸引管2は空気
を吸込みながら降下を続け、先端が試料溶液に到達し、
空気に変って試料溶液を吸込みながらさらに降下を続け
る。そして所定位置まで降下すると、スライダ10の突
片12が下限スイッチ7を作動させる。これによリモー
タ制御回路13は、信号を出力してモータ8を逆転し、
スライダ10を上昇させる。試料吸引管2は、試料溶液
を吸引しながら上昇してゆくうち、先端を空気中に露出
し、空気を吸込みながら上方に移動してゆき、上限スイ
ッチ6に到達する。これによりモータ8は反転してスラ
イダ10を降下させる。このように試料吸引管2の先端
を試ネ′[溶液と空気中の間を往復動させることにより
第2図に示したように管路系内を試料溶液層と空気層と
が交互にポンプPに吸込まれる。この過程において、空
気層は、管路壁面等に付着している前回分析時の残留試
料を管路内側へ引き出し、これに続いて来た試料溶液層
がこの突出した残留試料をその中に取り込んで運び去る
。このような過程を縁り返オうちに残留試料は、速やか
に管路系から排出され、測定セル11には残留試料を含
まない試′!−1溶液が流入し、第3図に示したように
電極電位は、短時間のうちに定常状態に達しこの試料に
ついての分析が完了する。In this embodiment, a sample container C is placed below the sample suction tube 2.
When the slider 10 is placed on a plate and the motor 8 is activated, the slider 10 begins to move downward, and the sample suction tube 2 attached to the slider 10 descends. When the pump P is activated at this point, the suction tube 2 continues to descend while sucking in air until the tip reaches the sample solution.
It turns into air and continues to descend while sucking in the sample solution. When the slider 10 descends to a predetermined position, the protrusion 12 of the slider 10 activates the lower limit switch 7. As a result, the remote control circuit 13 outputs a signal to reverse the motor 8,
Raise the slider 10. As the sample suction tube 2 ascends while sucking the sample solution, the tip thereof is exposed in the air, and the sample suction tube 2 moves upward while sucking in air until it reaches the upper limit switch 6 . As a result, the motor 8 is reversed and the slider 10 is lowered. In this way, the tip of the sample suction tube 2 is moved back and forth between the solution and the air, so that the sample solution layer and the air layer are alternately moved through the pump P in the pipe system as shown in Figure 2. It gets sucked in. In this process, the air layer pulls out the residual sample from the previous analysis adhering to the pipe wall etc. to the inside of the pipe, and the sample solution layer that follows takes this protruding residual sample into it. carry it away. While repeating this process, the remaining sample is quickly discharged from the pipe system, and the measuring cell 11 contains no residual sample. -1 solution flows in, and the electrode potential reaches a steady state within a short time as shown in FIG. 3, completing the analysis for this sample.
なお、この実施例では試料吸引管の上下機構を螺杵とス
ライダによって構成したが、カム機構を使用しても同様
な上下を行なわせることができる。In this embodiment, the mechanism for raising and lowering the sample suction tube was constructed using a screw punch and a slider, but a similar mechanism for raising and lowering the sample suction tube can also be achieved by using a cam mechanism.
[実 施 例 ]
内径が1mm 、長さ180 mmのパイプを測定セル
の試ネ゛l流入側に接続し、まず第1の試お1溶液を流
して?1↑路及びAl11定セル内番こ、この試寧1溶
液を残留試ネ=1として付着させ、その後、第2の試料
溶液(こついて従来の方法、つまり試料溶液を連続的番
こ吸弓1して測定セルに給送したところ電極″i[4;
l Iセル勺10秒間かかつて100%応答を示し、こ
のとき糸り200終1の試ネ)溶液を消費した。イ但方
、第2の試才4溶液と空気を1秒おきに間欠的1こ吸弓
1してサンプ1ノングしたところ、電極電位11、&<
J 7秒I■で100%応答を示し、試料溶液の消費量
Cよ約85plとなって、試料溶液の消費量及び分析時
間を軽へすることができた。[Example] A pipe with an inner diameter of 1 mm and a length of 180 mm is connected to the sample solution inlet side of the measurement cell, and the first sample solution is first poured into the pipe. 1 ↑ and Al11 constant cell number, this sample solution is deposited as residual sample = 1, and then the second sample solution (continuously deposited using the conventional method, i.e., the sample solution is deposited with a continuous sample solution) 1 and fed it to the measurement cell, the electrode "i[4;
The cell showed a 100% response for 10 seconds, at which time the solution was consumed. However, when the second sample solution and air were intermittently sucked once every second and the sump was pumped, the electrode potential was 11, &<
J showed 100% response in 7 seconds I■, and the sample solution consumption amount C was about 85 pl, making it possible to reduce sample solution consumption and analysis time.
以上、説明したように本発明番こよれif、試ネ1溶液
と気体を交互に吸引するよう番こ構成したので、管路系
内壁に刺着した試料や接続点番こ残留した試料の排出を
迅速に行なうこと力くでき、分析時■1カー短縮できる
ばかりでなく、分析番こ必要な試料を節減することがで
きる。As explained above, since the present invention is configured to alternately suck the sample solution and gas, the sample stuck to the inner wall of the pipe system and the sample remaining at the connection point can be discharged. This can be done quickly and efficiently, which not only reduces the time required for analysis by one car, but also reduces the number of samples required for analysis.
第1図は、本発明の一実施例を示す装置の構成図、第2
図は、同上装置の管路系を流れる試料溶液の状態を示す
説明図、第3図は、本発明と従来法による電極電位の応
答特性を示す説明図である。
1・・上下機構 2・・試料溶液吸引管6.7・・上
下限スイッチ 11・・測定セル13・・モータ制御
回路
出願人 株式会社 島 津 製作所
代理人 弁理士 西 川 慶 治
弁理士 木 村 勝 彦FIG. 1 is a configuration diagram of an apparatus showing one embodiment of the present invention, and FIG.
The figure is an explanatory diagram showing the state of a sample solution flowing through the conduit system of the same device, and FIG. 3 is an explanatory diagram showing the response characteristics of electrode potential according to the present invention and the conventional method. 1. Vertical mechanism 2. Sample solution suction tube 6. 7. Upper and lower limit switch 11. Measurement cell 13. Motor control circuit Applicant Shimadzu Corporation Representative Patent attorney Keiji Nishikawa Patent attorney Kimura Katsuhiko
Claims (1)
備えたサンプリング装置において、上記吸引管の先端を
試料溶液に間欠的に浸漬する試ネ1In a sampling device equipped with a suction pump on one side of a measurement cell and a sample suction tube on the other side, sample 1 is used in which the tip of the suction tube is intermittently immersed in a sample solution.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20397582A JPS5994071A (en) | 1982-11-20 | 1982-11-20 | Specimen liquid sampling apparatus in flow type analysis |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP20397582A JPS5994071A (en) | 1982-11-20 | 1982-11-20 | Specimen liquid sampling apparatus in flow type analysis |
Publications (1)
Publication Number | Publication Date |
---|---|
JPS5994071A true JPS5994071A (en) | 1984-05-30 |
Family
ID=16482719
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP20397582A Pending JPS5994071A (en) | 1982-11-20 | 1982-11-20 | Specimen liquid sampling apparatus in flow type analysis |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPS5994071A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
WO2006008811A1 (en) * | 2004-07-21 | 2006-01-26 | Iwaki Co., Ltd. | Dispensing device |
JP4913729B2 (en) * | 2004-06-01 | 2012-04-11 | プロテクティブ パッケージング システムズ リミティド | Package |
-
1982
- 1982-11-20 JP JP20397582A patent/JPS5994071A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP4913729B2 (en) * | 2004-06-01 | 2012-04-11 | プロテクティブ パッケージング システムズ リミティド | Package |
WO2006008811A1 (en) * | 2004-07-21 | 2006-01-26 | Iwaki Co., Ltd. | Dispensing device |
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