JPH06201667A - Solid-phase extraction pretreatment apparatus - Google Patents

Solid-phase extraction pretreatment apparatus

Info

Publication number
JPH06201667A
JPH06201667A JP36001892A JP36001892A JPH06201667A JP H06201667 A JPH06201667 A JP H06201667A JP 36001892 A JP36001892 A JP 36001892A JP 36001892 A JP36001892 A JP 36001892A JP H06201667 A JPH06201667 A JP H06201667A
Authority
JP
Japan
Prior art keywords
nozzle
opening
tip
container
diameter
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.)
Granted
Application number
JP36001892A
Other languages
Japanese (ja)
Other versions
JPH0830701B2 (en
Inventor
Toshitaka Yoshida
敏孝 吉田
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Shimadzu Corp
Original Assignee
Shimadzu Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Shimadzu Corp filed Critical Shimadzu Corp
Priority to JP4360018A priority Critical patent/JPH0830701B2/en
Publication of JPH06201667A publication Critical patent/JPH06201667A/en
Publication of JPH0830701B2 publication Critical patent/JPH0830701B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

Links

Abstract

PURPOSE:To enhance the suction and dispensing treatment capability of the title apparatus by a method wherein two kinds of fluids can flow simultaneously in parallel. CONSTITUTION:A solid-phase adsorbent 2 is filled into the lower part inside a column cartridge container 2, a space 6 is formed at the upper part of the solid-phase adsorbent 4, an elution port 8 is formed at the lower end of the container 2, and a circular opening 12 is made at the upper end of the container 2. A nozzle 14 is formed as a double-tube structure which is composed of a metal cylindrical inner tube 18 and a metal cylindrical outer tube 18, and the tip part 20 of the outer tube 18 is formed to be a taper shape in such a way that the diameter of its outer cross section becomes small toward the tip. The diameter of a part whose diameter is largest in the outer cross section of the tip part 20 is set to be larger than the diameter of the opening 12 in a lid 10, and the diameter of the outer cross section at the tip of the tip part 20 is set to be smaller than the diameter of the opening 12. When the tip part of the outer tube 18 of the nozzle is fitted to the opening in the lid 10 for the cartridge container, it fitted to be a state that a gap exists between the tip taper part 20 and the opening 12 or it can be fitted further to be a hermetically sealed state that no gap exists between the taper part 20 and the opening 12.

Description

【発明の詳細な説明】Detailed Description of the Invention

【0001】[0001]

【産業上の利用分野】本発明は液体クロマトグラフ、ガ
スクロマトグラフ、又は分光分析装置などで分析する試
料を調整するために、試料溶液や試料気体中の微量な試
料成分を濃縮したり精製したりするための前処理装置に
関するものである。
BACKGROUND OF THE INVENTION The present invention concentrates or purifies a trace amount of sample components in a sample solution or sample gas in order to prepare a sample to be analyzed by a liquid chromatograph, a gas chromatograph, a spectroscopic analyzer or the like. The present invention relates to a pretreatment device for performing.

【0002】[0002]

【従来の技術】溶液試料中の目的試料成分を濃縮したり
精製したりするための前処理装置として、ポリエチレン
製などの絶縁製容器に固相吸着剤を充填し、試料液を流
すことによって試料成分を吸着させ、その後、溶出液を
流すことによって吸着試料成分を溶出して液体クロマト
グラフなどの試料とするカラムカートリッジが使用され
ている。
2. Description of the Related Art As a pretreatment device for concentrating or purifying a target sample component in a solution sample, an insulating container made of polyethylene or the like is filled with a solid phase adsorbent, and a sample solution is caused to flow therethrough. A column cartridge is used in which a component is adsorbed and then an eluate is caused to flow to elute the adsorbed sample component into a sample such as a liquid chromatograph.

【0003】カラムカートリッジに試料液や溶出液を流
すために中空円筒パイプ構造のノズルが一般に使用され
る。ノズルは流路が1つで、気体や液体を吸引し、カラ
ムカートリッジへ吐出する。ノズルを用いて混合液を撹
拌するには、その混合液の吸引と吐出を繰り返すことに
よって撹拌処理を行なうことができる。流路が1つのノ
ズルで2流体を分注するには、流路が1つであるため並
行処理ができないため、時分割に分注する必要がある。
A nozzle having a hollow cylindrical pipe structure is generally used for flowing a sample solution or an eluate into a column cartridge. The nozzle has one flow path, and sucks gas or liquid and discharges it to the column cartridge. In order to stir the mixed liquid using the nozzle, the stirring process can be performed by repeating suction and discharge of the mixed liquid. In order to dispense two fluids with a nozzle having one flow channel, since there is only one flow channel and parallel processing is not possible, it is necessary to dispense in time division.

【0004】金属製ノズルで導電性液体中でのノズルの
位置を検知するために、金属材料のワイヤの先端をその
ノズルに並行して両者に隙間を設けた状態で設置した液
面センサが用いられている。ノズルの外側にワイヤを取
りつけると、ノズル全体としては円筒状ではなくなる。
そのためカラムカートリッジにノズルを挿入するための
カラムカートリッジの開口は十分大きな隙間をもったも
のとしなければならない。
In order to detect the position of a nozzle in a conductive liquid with a metal nozzle, a liquid level sensor is used in which the tip of a wire made of a metal material is installed in parallel with the nozzle with a gap between the two. Has been. When the wire is attached to the outside of the nozzle, the entire nozzle is no longer cylindrical.
Therefore, the column cartridge opening for inserting the nozzle into the column cartridge must have a sufficiently large gap.

【0005】[0005]

【発明が解決しようとする課題】試料液などの液体を吸
引したり吐出したりするノズルの内壁や外壁に付着して
残留する液滴の除去が不十分な場合は、コンタミネーシ
ョンやキャリーオーバーが生じ、分注精度の不良を引き
起こす。
Contamination and carryover may occur when the liquid droplets adhering to and remaining on the inner and outer walls of the nozzle for sucking or discharging a liquid such as a sample liquid are not sufficiently removed. Occurs, which causes poor dispensing accuracy.

【0006】そこで、本発明の第1の目的は、試料など
の液体を分注するノズルの外壁に残留する液滴の除去を
十分に行なえるようにすることである。本発明の第2の
目的は、電気絶縁性の容器中の導電性液体の有無やそこ
に挿入されたノズルの液体中での位置検出を行なうため
の液面センサを、ノズルの外側に設けるのではなく、ノ
ズル全体としての先端部の断面形状を円形に保った状態
で実現できるようにすることである。本発明の第3の目
的は、2種類の流体を同時に並行して流し得るようにし
て、吸引・分注処理能力を向上させることである。本発
明の第4の目的は、カラムカートリッジの固相吸着剤の
活性化前からカラムカートリッジ内に不活性ガスを供給
して汚染大気成分をカラムカートリッジから押し出せる
ようにし、吸着や溶出を安定化することである。
Therefore, a first object of the present invention is to make it possible to sufficiently remove droplets remaining on the outer wall of a nozzle for dispensing a liquid such as a sample. A second object of the present invention is to provide a liquid level sensor outside the nozzle for detecting the presence or absence of a conductive liquid in an electrically insulating container and the position of the nozzle inserted therein in the liquid. Rather, it is to be realized in a state where the cross-sectional shape of the tip of the entire nozzle is kept circular. A third object of the present invention is to improve the suction / dispensing processing capability by allowing two kinds of fluids to flow simultaneously in parallel. A fourth object of the present invention is to supply an inert gas into the column cartridge before the solid phase adsorbent of the column cartridge is activated so that polluted atmospheric components can be pushed out from the column cartridge to stabilize adsorption and elution. It is to be.

【0007】[0007]

【課題を解決するための手段】本発明の固相抽出前処理
装置は、容器内の下部に試料成分を吸着し溶出液により
吸着成分を脱離する固相吸着剤が充填され、その容器内
の上部に空間をもつとともに、下端に溶出口をもち、上
端に円形の開口をもつカラムカートリッジと、導電性材
料にてなり互いに電気的に絶縁された内筒及び少なくと
も先端部の外形断面形状が円形の外管を含む2重管構造
で、内筒及び外筒がそれぞれ独立した流体供給手段につ
ながり、外筒の先端部がカラムカートリッジの開口に嵌
め込まれるノズルと、を備えている。
The solid-phase extraction pretreatment apparatus of the present invention is filled with a solid-phase adsorbent for adsorbing a sample component and desorbing the adsorbed component by an eluate in the lower part of the container, and Column cartridge having a space at the top of the column, an elution port at the bottom and a circular opening at the top, and an inner cylinder made of a conductive material and electrically insulated from each other, and at least the outer cross-sectional shape of the tip. The nozzle has a double tube structure including a circular outer tube, the inner tube and the outer tube are connected to independent fluid supply means, and the tip of the outer tube is fitted into the opening of the column cartridge.

【0008】[0008]

【作用】ノズルの内筒を試料溶液、コンディショニング
液及び洗浄液の吸引と吐出に用いたり、ポンプによる供
給に用いることができる。ノズルの外筒から不活性ガス
を吹き出して内筒の外壁に付着した液滴を除去したり、
ノズルカートリッジ内のガスを置換したり、内筒と同様
に洗浄液などを吐出したり供給したりするのに用いるこ
とができる。内筒と外筒は互いに電気的に絶縁されてい
るので、それらの間の電気抵抗を測定することにより液
面センサとして機能させることができる。
The inner cylinder of the nozzle can be used for sucking and discharging the sample solution, the conditioning liquid, and the cleaning liquid, or for supplying by the pump. Injecting an inert gas from the outer cylinder of the nozzle to remove the liquid droplets adhering to the outer wall of the inner cylinder,
It can be used to replace the gas in the nozzle cartridge and to discharge or supply the cleaning liquid or the like as in the inner cylinder. Since the inner cylinder and the outer cylinder are electrically insulated from each other, it is possible to function as a liquid level sensor by measuring the electric resistance between them.

【0009】[0009]

【実施例】図1は一実施例を表わす。ポリエチレンなど
の絶縁プラスチック製カラムカートリッジ容器2内の下
部に、C18やシリカなどの固相吸着剤4が充填されてい
る。固相吸着剤4の上部には空間6があり、容器2の下
端には溶出口8が形成されている。容器2の上端開口部
は絶縁プラスチック製の蓋10で被われ、蓋10の中央
部には円形の開口12があけられている。
DESCRIPTION OF THE PREFERRED EMBODIMENTS FIG. 1 shows an embodiment. The lower part of the column cartridge container 2 made of insulating plastic such as polyethylene is filled with a solid phase adsorbent 4 such as C 18 or silica. A space 6 is provided above the solid-phase adsorbent 4, and an elution port 8 is formed at the lower end of the container 2. The upper end opening of the container 2 is covered with a lid 10 made of insulating plastic, and a circular opening 12 is opened in the center of the lid 10.

【0010】14は2重管構造のノズルであり、金属製
の円筒状内筒16と金属製の円筒状外筒18とからな
り、先端部では内筒16の先端が外筒18の先端よりも
突出している。外筒18の先端部20は先端に向かって
外形断面の直径が小さくなるようにテーパー状に形成さ
れている。その先端部20の外形の断面で最も直径の大
きい部分の直径は蓋10の開口12の直径よりも大き
く、先端部20の先端の外形断面の直径は開口12の直
径よりも小さく設定されている。
Reference numeral 14 denotes a double-tube structure nozzle, which is composed of a cylindrical inner cylinder 16 made of metal and a cylindrical outer cylinder 18 made of metal. Is also protruding. The tip portion 20 of the outer cylinder 18 is formed in a taper shape so that the diameter of the outer cross section becomes smaller toward the tip. The diameter of the largest diameter portion in the cross section of the outer shape of the tip portion 20 is larger than the diameter of the opening 12 of the lid 10, and the diameter of the outer cross section of the tip of the tip portion 20 is set smaller than the diameter of the opening 12. .

【0011】内筒16と外筒18の間に隙間を形成する
ために、外筒18にネジ穴が設けられ、そのネジ穴にテ
フロン(商標)などの電気絶縁材料にてなる止めネジ2
2がネジこまれ、そのネジ22の先端が内筒16に当接
して内筒16と外筒18の間の隙間が設定されている。
In order to form a gap between the inner cylinder 16 and the outer cylinder 18, a screw hole is provided in the outer cylinder 18, and the set screw 2 made of an electrically insulating material such as Teflon (trademark) is provided in the screw hole.
2 is screwed in, and the tip of the screw 22 contacts the inner cylinder 16 to set a gap between the inner cylinder 16 and the outer cylinder 18.

【0012】ノズル14の基端部(図では上端部)では
内筒16が金属製ノズル保持板24により保持され、ノ
ズル保持板24には電線ケーブル26が接続され、外筒
18には電線ケーブル32が接続されている。基端部で
の内筒16と外筒18の間には絶縁物製のOリング28
が介在して絶縁が保たれており、外筒18とノズル保持
板24の間にも絶縁製Oリング30が介在して両者の絶
縁が保たれている。内筒16の基端部にはネジが形成さ
れており、そのネジにナット34が絶縁性Oリング36
を介して保持板24に締め付けられている。両電線ケー
ブル26,32を介して内筒16と外筒18間の電気抵
抗を測定することにより、このノズル14を液面センサ
としても機能させることができる。
At the base end portion (upper end portion in the figure) of the nozzle 14, the inner cylinder 16 is held by a metal nozzle holding plate 24, an electric wire cable 26 is connected to the nozzle holding plate 24, and an electric wire cable is attached to the outer cylinder 18. 32 is connected. An O-ring 28 made of an insulating material is provided between the inner cylinder 16 and the outer cylinder 18 at the base end.
The insulating O-ring 30 is interposed between the outer cylinder 18 and the nozzle holding plate 24 to maintain the insulation between them. A screw is formed at the base end of the inner cylinder 16, and the nut 34 is attached to the insulating O-ring 36.
It is fastened to the holding plate 24 via. By measuring the electric resistance between the inner cylinder 16 and the outer cylinder 18 via both electric wires 26 and 32, the nozzle 14 can also function as a liquid level sensor.

【0013】内筒16の基端には流路を形成するチュー
ブ38が嵌め込まれ、外筒18には側部に枝管が設けら
れてその枝管にチューブ40が嵌め込まれている。チュ
ーブ38はポンプ42を介して内筒16の内側を洗浄す
る内筒洗浄液ボトル44と試液(コンディショニング
液)ボトル46に切り換えて接続され、また試料などを
吸引するともの吸引ポンプ(図示略)にも切り換えて接
続されるようになっている。一方、外筒18につながる
チューブ40は窒素ガスボンベや窒素ガスを供給するポ
ンプに接続されている。
A tube 38 forming a flow path is fitted into the base end of the inner cylinder 16, and a branch pipe is provided on a side portion of the outer cylinder 18, and a tube 40 is fitted into the branch pipe. The tube 38 is connected via a pump 42 to an inner cylinder cleaning liquid bottle 44 for cleaning the inside of the inner cylinder 16 and a test solution (conditioning liquid) bottle 46, and also to a suction pump (not shown) for sucking a sample or the like. It is designed to be switched and connected. On the other hand, the tube 40 connected to the outer cylinder 18 is connected to a nitrogen gas cylinder or a pump that supplies nitrogen gas.

【0014】ノズルの外筒18の先端部をカートリッジ
の蓋10の開口12に嵌め込む際、外筒18の先端テー
パー部20と開口12の間に隙間がある状態に嵌め込む
こともできるし、更に嵌め込んでテーパー部20と開口
12との間に隙間のない密閉状態とすることもできる。
When the tip portion of the outer cylinder 18 of the nozzle is fitted into the opening 12 of the lid 10 of the cartridge, it is possible to fit the tip portion 20 of the outer cylinder 18 and the opening 12 with a gap. It is also possible to fit it further into a sealed state in which there is no gap between the tapered portion 20 and the opening 12.

【0015】図2はこの実施例を用いて試料前処理を行
なう動作を説明する図である。50は溶出液の入った溶
出液つぼ、52は洗浄液の入った洗浄つぼ、54はコン
ディショニング液の入った試液つぼ、56は試料の入っ
た試料つぼである。外筒18のチューブ40はポンプ5
8を介して窒素ガス流路に接続されるか、又は窒素ガス
ボンベ60に接続される。
FIG. 2 is a diagram for explaining the operation of performing sample pretreatment using this embodiment. Reference numeral 50 is an eluate vase containing an eluent, 52 is a cleaning vase containing a cleaning solution, 54 is a test solution vase containing a conditioning solution, and 56 is a sample vase containing a sample. The tube 40 of the outer cylinder 18 is the pump 5
8 to be connected to the nitrogen gas flow path or to the nitrogen gas cylinder 60.

【0016】次に、図1と図2を参照してこの実施例の
動作について説明する。ノズル14の先端部を洗浄つぼ
52の洗浄液内に入れ、ノズル先端部の内筒16の内壁
及び外壁と外筒18の内壁及び外壁を洗浄する。ノズル
を洗浄つぼ52から引き上げ、外筒18のチューブ40
から窒素ガスを送ることによって内筒16の外壁に付着
した洗浄液を吹き落した後、ノズル14の先端部をカラ
ムカートリッジ容器2の蓋の開口12に挿入する。この
ときはノズル14の先端と開口12の間に隙間がある状
態に挿入する。
Next, the operation of this embodiment will be described with reference to FIGS. The tip of the nozzle 14 is put into the cleaning liquid in the cleaning pot 52, and the inner wall and outer wall of the inner cylinder 16 and the inner wall and outer wall of the outer cylinder 18 at the nozzle tip are cleaned. The nozzle is pulled up from the cleaning pot 52, and the tube 40 of the outer cylinder 18
After blowing the cleaning liquid adhering to the outer wall of the inner cylinder 16 by sending nitrogen gas from the inside, the tip of the nozzle 14 is inserted into the opening 12 of the lid of the column cartridge container 2. At this time, the nozzle 14 is inserted with a gap between the tip of the nozzle 14 and the opening 12.

【0017】チューブ38を介して内筒16からカート
リッジ容器2内に洗浄液を吐出する。洗浄液の吐出を停
止した後、ノズル14を試液つぼ56に挿入してコンデ
ィショニング液を内筒16内に吸引する。ノズル14を
コンディショニング液から引き出し、カラムカートリッ
ジ容器2へ移動する途中で外筒18のチューブ40から
窒素ガスを供給して内筒16の外壁に付着したコンディ
ショニング液を吹き落す。ノズル14を容器の開口12
へ挿入するが、このときもノズル先端と開口12の間に
隙間のある状態に挿入し、窒素ガスを外筒18から吹き
出して容器2内の残留大気を押し出し、内筒16に吸引
したコンディショニング液をカートリッジ容器2内へ吐
出する。次に、ノズル14を更にカートリッジ容器へ挿
入してノズル先端で開口12を密閉する。その状態でチ
ューブ40から外筒18を経て容器2内に窒素ガスを供
給し、空間6を加圧してコンディショニング液を溶出口
8から押し出す。
The cleaning liquid is discharged from the inner cylinder 16 into the cartridge container 2 through the tube 38. After the discharge of the cleaning liquid is stopped, the nozzle 14 is inserted into the test liquid pot 56 to suck the conditioning liquid into the inner cylinder 16. The nozzle 14 is drawn out from the conditioning liquid, and nitrogen gas is supplied from the tube 40 of the outer cylinder 18 to move the conditioning liquid adhering to the outer wall of the inner cylinder 16 while moving to the column cartridge container 2. The nozzle 14 to the container opening 12
At this time, the conditioning liquid is also inserted with a gap between the nozzle tip and the opening 12, nitrogen gas is blown out from the outer cylinder 18 to push out the residual air in the container 2, and the inner cylinder 16 is sucked. Is discharged into the cartridge container 2. Next, the nozzle 14 is further inserted into the cartridge container, and the opening 12 is sealed with the tip of the nozzle. In this state, nitrogen gas is supplied from the tube 40 through the outer cylinder 18 into the container 2 to pressurize the space 6 to push out the conditioning liquid from the elution port 8.

【0018】ノズル14を洗浄つぼ52で洗浄した後、
ノズル14を試料つぼ54へ移動する途中で外筒18か
ら窒素ガスを吹き出して内筒16の外壁に付着した洗浄
液を吹き落す。試料つぼ54にノズル14を挿入し、内
筒16の先端と外筒18の先端の間の電気抵抗の変化を
測定することによってノズル先端が試料液に到達したか
どうかを検出し、ノズル14の位置決めを行なう。そし
て必要量の試料を内筒16内に吸引する。
After cleaning the nozzle 14 with the cleaning pot 52,
During the movement of the nozzle 14 to the sample pot 54, nitrogen gas is blown from the outer cylinder 18 to blow off the cleaning liquid adhering to the outer wall of the inner cylinder 16. By inserting the nozzle 14 into the sample pot 54 and measuring the change in the electrical resistance between the tip of the inner cylinder 16 and the tip of the outer cylinder 18, it is detected whether or not the tip of the nozzle has reached the sample liquid, Perform positioning. Then, the required amount of sample is sucked into the inner cylinder 16.

【0019】ノズル14をカートリッジ容器2へ移動す
る途中で外筒18から窒素ガスを吹き出して内筒16の
外壁に付着した試料を吹き落す。ノズル14の先端をカ
ートリッジ容器2へ挿入し、ノズル先端のテーパー部2
0と開口12の間に隙間がある状態として窒素ガスを外
筒18から吹き出し、カートリッジ容器2内の残留大気
を押し出す。その後、吸引した試料を内筒16からカー
トリッジ容器2内へ吐出した後、ノズル14を更に開口
12に差し込んで開口12との間の隙間を閉じ、窒素ガ
スを外筒18から吹き出すことによって試料液を溶出口
8から押し出す。このとき、試料溶液中の分析対象成分
が固相吸着剤4に吸着されて保持される。
During the movement of the nozzle 14 to the cartridge container 2, nitrogen gas is blown from the outer cylinder 18 to blow off the sample adhered to the outer wall of the inner cylinder 16. The tip of the nozzle 14 is inserted into the cartridge container 2 and the taper portion 2 at the tip of the nozzle is inserted.
With a gap between 0 and the opening 12, nitrogen gas is blown out from the outer cylinder 18 to push out the residual air in the cartridge container 2. Then, the sucked sample is discharged from the inner cylinder 16 into the cartridge container 2, the nozzle 14 is further inserted into the opening 12 to close the gap between the opening 12 and the nitrogen gas, and the sample gas is discharged from the outer cylinder 18. Is extruded from the elution port 8. At this time, the component to be analyzed in the sample solution is adsorbed and held by the solid phase adsorbent 4.

【0020】ノズル14をカートリッジ容器2から抜
き、洗浄つぼ52へ移動させ、洗浄つぼ52で内筒16
の内壁及び外壁と外筒18の内壁及び外壁を洗浄する。
その後、ノズル14を溶出液つぼ50へ移動させる途中
で、外筒18から窒素ガスを吹き出して内筒16の外壁
に付着した洗浄液を吹き落す。その後、ノズル14を溶
出液つぼ50の溶出液に入れ、内筒16内に溶出液を吸
引する。ノズル14をカートリッジ容器2へ移動する途
中に、外筒18から窒素ガスを吹き出すことによって内
筒16の外壁に付着した溶出液を吹き落す。ノズル14
をカートリッジ容器の蓋の開口12へ開口12とノズル
先端の間に隙間ができる状態に差し込み、外筒18から
窒素ガスを吹き出して容器2内の残留ガスを押し出した
後、内筒16に吸引した溶出液を内筒16からカートリ
ッジ容器2内へ吐出し、固相吸着剤4に吸着されている
試料成分を溶出液で溶出させる。溶出液を吐出した後、
ノズル14を更に開口12に差し込むことによって開口
12を密閉し、外筒18から窒素ガスを吹き出して溶出
口8から溶出液を押し出す。
The nozzle 14 is removed from the cartridge container 2 and moved to the cleaning pot 52, where the inner cylinder 16 is removed.
The inner and outer walls of the outer cylinder 18 and the inner and outer walls of the outer cylinder 18 are cleaned.
Then, while the nozzle 14 is being moved to the eluate vat 50, nitrogen gas is blown from the outer cylinder 18 to blow off the cleaning liquid adhering to the outer wall of the inner cylinder 16. Then, the nozzle 14 is put into the eluate of the eluate vat 50, and the eluate is sucked into the inner cylinder 16. While moving the nozzle 14 to the cartridge container 2, nitrogen gas is blown from the outer cylinder 18 to blow off the eluent adhering to the outer wall of the inner cylinder 16. Nozzle 14
Was inserted into the opening 12 of the lid of the cartridge container so that a gap was formed between the opening 12 and the tip of the nozzle, nitrogen gas was blown from the outer cylinder 18 to push out the residual gas in the container 2, and then the inner cylinder 16 was sucked. The eluate is discharged from the inner cylinder 16 into the cartridge container 2, and the sample components adsorbed on the solid phase adsorbent 4 are eluted with the eluate. After discharging the eluate,
By further inserting the nozzle 14 into the opening 12, the opening 12 is closed, and nitrogen gas is blown from the outer cylinder 18 to push out the eluate from the elution port 8.

【0021】以下同様の動作を繰り返し、ノズル洗浄、
内筒外壁付着分の吹き落し、コンディショニング液の吸
引により所定の一連の動作を終える。図1に示されるよ
うに内筒16の先端は外筒18の先端よりも突出してい
るが、この突出量は液面センサの感度などにより適当な
長さに設定することができる。
Thereafter, the same operation is repeated to wash the nozzle,
A predetermined series of operations is completed by blowing off the adhered portion on the outer wall of the inner cylinder and sucking the conditioning liquid. As shown in FIG. 1, the tip of the inner cylinder 16 projects more than the tip of the outer cylinder 18, but this projection amount can be set to an appropriate length depending on the sensitivity of the liquid level sensor.

【0022】本発明では内筒と外筒という2つの流路を
備えているので、その2つの流路は用途により適宜使い
分けすることができる。例えば、両流路を液体供給用に
使用することもできるし、一方が液体用で他方が気体
用、又は両流路をともに気体用というように使い分ける
こともできる。
Since the present invention is provided with two flow paths, an inner cylinder and an outer cylinder, the two flow paths can be properly used depending on the application. For example, both channels can be used for supplying liquid, one can be used for liquid and the other can be used for gas, or both channels can be used for gas.

【0023】[0023]

【発明の効果】本発明では2種類の流体を同時に並行し
て流し得るようにしたので、ノズルをカラムカートリッ
ジのノズル挿入用の開口に静止させた状態で一連の処理
を同時に実行できるので、カラムカートリッジの開口を
ノズルが出入りする回数が減り、処理時間が短縮され
る。試料などの液体を内筒で分注する場合は、外筒から
気体を吹き出すことにより、内筒の外壁に残留する液滴
を十分に除去できるようになる。本発明でのノズルは電
気的に絶縁された二重管構造であるので、内筒と外筒の
間が電気抵抗測定プローブとなり、容器中の導電性液体
の有無やそこに挿入されたノズルの液体中での位置検出
を行なうための液面センサの機能を有し、吐出量を正確
にチェックできるとともに、外筒の流路に導電性流体を
流す場合には流体の有無を検知することができるように
なる。ノズル全体としての先端部の断面形状を円形に保
ったので、カラムカートリッジのノズル挿入用開口との
隙間を調節できるようになり、カラムカートリッジの固
相吸着剤の活性化前からカラムカートリッジ内に不活性
ガスを供給して汚染大気成分をカラムカートリッジから
押し出せるようになり、吸着剤表面を乾燥させたり、安
定化させることができるようになる。
According to the present invention, since two kinds of fluids can be made to flow in parallel at the same time, a series of processes can be carried out at the same time with the nozzle stationary at the nozzle insertion opening of the column cartridge. The number of times the nozzle moves in and out of the opening of the cartridge is reduced, and the processing time is shortened. When a liquid such as a sample is dispensed in the inner cylinder, the gas remaining in the outer wall of the inner cylinder can be sufficiently removed by blowing out the gas from the outer cylinder. Since the nozzle of the present invention has an electrically insulated double-tube structure, an electric resistance measuring probe is provided between the inner cylinder and the outer cylinder, and the presence or absence of the conductive liquid in the container and the nozzle inserted therein. It has the function of a liquid level sensor to detect the position in the liquid, can accurately check the discharge amount, and can detect the presence or absence of fluid when flowing a conductive fluid in the flow path of the outer cylinder. become able to. Since the cross-sectional shape of the tip of the nozzle as a whole was kept circular, it became possible to adjust the clearance between the nozzle and the nozzle insertion opening of the column cartridge. The active gas can be supplied to push out polluted atmospheric components from the column cartridge, and the adsorbent surface can be dried or stabilized.

【図面の簡単な説明】[Brief description of drawings]

【図1】一実施例を示す垂直断面図である。FIG. 1 is a vertical sectional view showing an embodiment.

【図2】同実施例の動作を示す概略端面図である。FIG. 2 is a schematic end view showing the operation of the embodiment.

【符号の説明】[Explanation of symbols]

2 カラムカートリッジ容器 4 固相吸着剤 6 空間 10 蓋 12 蓋の開口 14 ノズル 16 ノズルの内筒 18 ノズルの外筒 20 ノズルの先端部 38,40 チューブ 2 Column Cartridge Container 4 Solid Phase Adsorbent 6 Space 10 Lid 12 Lid Opening 14 Nozzle 16 Inner Cylinder 18 Nozzle Outer Cylinder 20 Nozzle Tip 38, 40 Tube

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】 容器内の下部に試料成分を吸着し溶出液
により吸着成分を脱離する固相吸着剤が充填され、その
容器内の上部に空間をもつとともに、下端に溶出口をも
ち、上端に円形の開口をもつカラムカートリッジと、導
電性材料にてなり互いに電気的に絶縁された内筒及び少
なくとも先端部の外形断面形状が円形の外管を含む2重
管構造で、内筒及び外筒がそれぞれ独立した流体供給手
段につながり、外筒の先端部がカラムカートリッジの前
記開口に嵌め込まれるノズルと、を備えたことを特徴と
する固相抽出前処理装置。
1. A solid phase adsorbent for adsorbing a sample component and desorbing an adsorbed component by an eluent is filled in the lower part of the container, and a space is provided in the upper part of the container and an elution port is provided at the lower end, A double-tube structure including a column cartridge having a circular opening at the upper end, an inner tube made of a conductive material and electrically insulated from each other, and an outer tube having an outer cross-sectional shape of at least a tip portion of a circular shape. A solid-phase extraction pretreatment apparatus comprising: an outer cylinder connected to independent fluid supply means, and a nozzle having a tip end of the outer cylinder fitted into the opening of the column cartridge.
JP4360018A 1992-12-30 1992-12-30 Solid-phase extraction pretreatment device Expired - Lifetime JPH0830701B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP4360018A JPH0830701B2 (en) 1992-12-30 1992-12-30 Solid-phase extraction pretreatment device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP4360018A JPH0830701B2 (en) 1992-12-30 1992-12-30 Solid-phase extraction pretreatment device

Publications (2)

Publication Number Publication Date
JPH06201667A true JPH06201667A (en) 1994-07-22
JPH0830701B2 JPH0830701B2 (en) 1996-03-27

Family

ID=18467474

Family Applications (1)

Application Number Title Priority Date Filing Date
JP4360018A Expired - Lifetime JPH0830701B2 (en) 1992-12-30 1992-12-30 Solid-phase extraction pretreatment device

Country Status (1)

Country Link
JP (1) JPH0830701B2 (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003025170A1 (en) * 2001-09-17 2003-03-27 Hitachi, Ltd. Sample processing device and sample processing method
JP2007064922A (en) * 2005-09-02 2007-03-15 Shimadzu Corp Automatic sampler
JP2008542689A (en) * 2005-05-06 2008-11-27 インストゥルメンテーション ラボラトリー カンパニー Nested closed tube sampling assembly
JP2009031174A (en) * 2007-07-30 2009-02-12 Hitachi High-Technologies Corp Autoanalyzer
CN102157410A (en) * 2009-12-18 2011-08-17 埃耶士株式会社 Device and method for substrate analysis
US20120079874A1 (en) * 2008-12-10 2012-04-05 Anderson Jr James Chromatography Columns

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53100297A (en) * 1977-02-15 1978-09-01 Fuji Electric Co Ltd Analysis method of minor constituent in high purity water
JPS6042959U (en) * 1983-09-01 1985-03-26 株式会社島津製作所 Automatic sample introduction device
JPS62156878U (en) * 1986-03-27 1987-10-05
JPH01216268A (en) * 1988-02-25 1989-08-30 Olympus Optical Co Ltd Liquid dispenser
JPH0391463A (en) * 1989-09-02 1991-04-17 Eguchi Kinichirou Processed food

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS53100297A (en) * 1977-02-15 1978-09-01 Fuji Electric Co Ltd Analysis method of minor constituent in high purity water
JPS6042959U (en) * 1983-09-01 1985-03-26 株式会社島津製作所 Automatic sample introduction device
JPS62156878U (en) * 1986-03-27 1987-10-05
JPH01216268A (en) * 1988-02-25 1989-08-30 Olympus Optical Co Ltd Liquid dispenser
JPH0391463A (en) * 1989-09-02 1991-04-17 Eguchi Kinichirou Processed food

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2003025170A1 (en) * 2001-09-17 2003-03-27 Hitachi, Ltd. Sample processing device and sample processing method
US7025876B2 (en) 2001-09-17 2006-04-11 Hitachi, Ltd. Sample processing device and sample processing method
JP2008542689A (en) * 2005-05-06 2008-11-27 インストゥルメンテーション ラボラトリー カンパニー Nested closed tube sampling assembly
JP2013064751A (en) * 2005-05-06 2013-04-11 Instrumentation Laboratory Co Nested closed tube sampling assembly
US8758702B2 (en) 2005-05-06 2014-06-24 Instrumentation Laboratory Company Telescoping closed-tube sampling assembly
US9817010B2 (en) 2005-05-06 2017-11-14 Instrumentation Laboratory Company Telescoping closed-tube sampling assembly
JP2007064922A (en) * 2005-09-02 2007-03-15 Shimadzu Corp Automatic sampler
JP2009031174A (en) * 2007-07-30 2009-02-12 Hitachi High-Technologies Corp Autoanalyzer
US20120079874A1 (en) * 2008-12-10 2012-04-05 Anderson Jr James Chromatography Columns
CN102157410A (en) * 2009-12-18 2011-08-17 埃耶士株式会社 Device and method for substrate analysis

Also Published As

Publication number Publication date
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