JPH0820431B2 - Cation analyzer - Google Patents
Cation analyzerInfo
- Publication number
- JPH0820431B2 JPH0820431B2 JP62271560A JP27156087A JPH0820431B2 JP H0820431 B2 JPH0820431 B2 JP H0820431B2 JP 62271560 A JP62271560 A JP 62271560A JP 27156087 A JP27156087 A JP 27156087A JP H0820431 B2 JPH0820431 B2 JP H0820431B2
- Authority
- JP
- Japan
- Prior art keywords
- column
- concentration
- switching valve
- separation
- sample
- 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.)
- Expired - Fee Related
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- Treatment Of Liquids With Adsorbents In General (AREA)
Description
【発明の詳細な説明】 ＜産業上の利用分野＞ 本発明は、被測定液を濃縮カラムで濃縮した後、濃縮
した被測定液を溶離液によって分離カラムに導いて被測
定溶液中の陽イオンを分離し、分離した陽イオンを測定
する陽イオン分析装置に関し、さらに詳しくは、分離カ
ラムと濃縮カラムの校正を１種類の標準試薬によって容
易に且つ正確に行うことのできる陽イオン分析装置に関
する。DETAILED DESCRIPTION OF THE INVENTION <Industrial field of application> The present invention concentrates a solution to be measured in a concentration column and then guides the concentrated solution to be measured to a separation column by an eluent to introduce cations in the solution to be measured. The present invention relates to a cation analyzer for separating cations and measuring the separated cations, and more specifically to a cation analyzer for easily and accurately calibrating a separation column and a concentration column with one standard reagent.
＜従来の技術＞ 第４図は従来の陽イオン分析装置の構成説明図であ
る。この図において、送液ポンプ2aが駆動すると、溶離
液槽1a内の溶離液が、送液ポンプ2a→第１切換弁３の第
１及び第２の接続口3a,3b→第２切換弁４の第１及び第
２の接続口4a,4b→分離カラム５→検出器６を経由し、
廃液槽1cへと流れる。送液ポンプ2bが駆動すると、試料
槽1a内の被測定液が、送液ポンプ2b→第２切換弁４の第
４及び第３の接続口4d,4c→濃縮カラム4g→第２切換弁
４の第６及び第５の接続口4f,4eを経由し、廃液槽1dへ
と流れる。尚、分離カラム５と検出器６は、恒温槽７内
に収納されて一定温度（例えば40℃）に保たれることが
多い。このような構成からなる従来の装置において、シ
リンジ3hを用いて一定量の被測定液が第１切換弁３の第
５接続口3eに注入されると、該被測定液によって計量管
3g内が満たされるようになる。この状態で、第１切替弁
３がオンにされ内部流路が第４図の実線接続状態から破
線接続状態に切換えられると、上記計量管3g内の被測定
液が溶離液で搬送されて分離カラム５に至り、ここで該
被測定液に含まれている陽イオンが分離され、その後、
検出器で検出される。このようにして検出器６で検出さ
れた信号は、図示しない表示装置（例えば記録計）に導
かれクロマトグラムを描くようになる。<Prior Art> FIG. 4 is an explanatory diagram of a configuration of a conventional cation analyzer. In this figure, when the liquid feed pump 2a is driven, the eluent in the eluent tank 1a changes to the liquid feed pump 2a → the first and second connection ports 3a, 3b of the first switching valve 3 → the second switching valve 4 Via the first and second connection ports 4a, 4b → separation column 5 → detector 6,
It flows to the waste liquid tank 1c. When the liquid feed pump 2b is driven, the liquid to be measured in the sample tank 1a is fed into the liquid feed pump 2b → the fourth and third connection ports 4d, 4c of the second switching valve 4 → the concentration column 4g → the second switching valve 4 Through the sixth and fifth connection ports 4f, 4e of the above and flow into the waste liquid tank 1d. The separation column 5 and the detector 6 are often stored in a constant temperature bath 7 and kept at a constant temperature (for example, 40 ° C.). In the conventional device having such a configuration, when a certain amount of the liquid to be measured is injected into the fifth connection port 3e of the first switching valve 3 using the syringe 3h, the measuring pipe is measured by the liquid to be measured.
The inside of 3g will be filled. In this state, when the first switching valve 3 is turned on and the internal flow path is switched from the solid line connection state in FIG. 4 to the broken line connection state, the measured liquid in the measuring pipe 3g is conveyed by the eluent and separated. The column 5 is reached, where the cations contained in the liquid to be measured are separated, and thereafter,
It is detected by the detector. The signal thus detected by the detector 6 is guided to a display device (not shown) (for example, a recorder) to draw a chromatogram.
一方、上記分離カラム５は次のようにしてチェックさ
れていた。即ち、シリンジ3hを用い、20ppmのMg2+イオ
ンと50ppmのCa2+イオンを含む試料（以下、「第１試
料」という）を一定量（例えば100μ）だけ第１切換
弁３の第５接続口3eに注入し、上述のようにして表示装
置に描かれたクロマトグラムから分離カラム５の分離性
能をチェックするようにしていた。また、上記濃縮カラ
ム4gは次のようにしてチェックされていた。即ち、8ppb
のMg2+イオン,8ppbのCa2+イオン,2ppmのN2H4イオン,200
ppbのNH4 +イオン，及びＢとしての濃度が5ppmのBO3 3-イ
オンを含む試料（以下、「第２試料」という）を上記試
料槽1b内に貯溜し、該試料中のMg2+イオンを上述のよう
にして分析し上記クロマトグラムにおけるMg2+イオンの
ピーク高さから濃縮カラム4gの劣化状態をチェックする
ようにしていた。更に、上述のような装置の校正は、次
のようにして行われていた。即ち、4ppbのMg2+イオン,4
ppbのCa2+イオン,200ppbのNH4 +イオン,2ppmのN2H4イオ
ン，及びＢとしての濃度が5ppmのBO3 3-イオンを含む試
料（以下、「第３試料」という）と上記第２試料を上記
試料槽1c内に交互に貯溜し、該試料中の各成分イオンを
上述のようにして分析し上記クロマトグラムから各成分
の検量線を作成し、該検量線に基いて上記装置の２点校
正を行なうようにしていた。On the other hand, the separation column 5 was checked as follows. That is, using the syringe 3h, a fixed amount (for example, 100 μ) of a sample containing 20 ppm of Mg 2+ ion and 50 ppm of Ca 2+ ion (hereinafter, referred to as “first sample”) is connected to the first switching valve 3 by the fifth connection. It was injected into the mouth 3e, and the separation performance of the separation column 5 was checked from the chromatogram drawn on the display device as described above. In addition, 4 g of the above concentration column was checked as follows. That is, 8ppb
Mg 2+ ion, 8ppb Ca 2+ ion, 2ppm N 2 H 4 ion, 200
A sample containing NH 4 + ions of ppb and BO 3 3− ions having a concentration of 5 ppm as B (hereinafter referred to as “second sample”) is stored in the sample tank 1b, and Mg 2+ in the sample is stored. The ions were analyzed as described above, and the deterioration state of the concentration column 4 g was checked from the peak height of Mg 2+ ions in the above chromatogram. Further, the calibration of the device as described above has been performed as follows. That is, 4 ppb Mg 2+ ions, 4
A sample containing ppb Ca 2+ ions, 200 ppb NH 4 + ions, 2 ppm N 2 H 4 ions, and a B concentration of 5 ppm BO 3 3- ions (hereinafter referred to as “third sample”) and the above The second sample is alternately stored in the sample tank 1c, each component ion in the sample is analyzed as described above, a calibration curve for each component is created from the chromatogram, and based on the calibration curve, A two-point calibration of the device was made.
＜発明が解決しようとする問題点＞ 然しながら、上記第２試料や第３試料は非常に低濃度
でコンタミネーションが生じ易く、これら試料を正確に
調整することが困難で結果的に正確な校正ができないと
いう欠点があった。また、上記第２試料や第３試料は保
存ができず、上記装置の校正の度に調整しなければなら
ず且つ１つの試料を調整するのに約１時間もかかるとい
う欠点があった。更に、上述の従来例においては試料が
３種類も必要である（即ち、第１〜第３の試料）という
欠点があった。また、上記濃縮カラムのチェックにおい
て、上記装置の校正などで使用された試料と上記第２試
料がコンタミネーションを起こし、結果的に濃縮カラム
4gを正確にチェックできないという欠点があった。<Problems to be Solved by the Invention> However, the second sample and the third sample are liable to cause contamination at a very low concentration, and it is difficult to accurately adjust these samples, resulting in accurate calibration. There was a drawback that I could not. In addition, the second sample and the third sample cannot be stored, and they have to be adjusted each time the apparatus is calibrated, and it takes about 1 hour to adjust one sample. Further, the above-mentioned conventional example has a drawback that three kinds of samples are required (that is, the first to third samples). Also, in the check of the concentration column, the sample used for calibration of the device and the like causes the contamination of the second sample, resulting in the concentration column.
There was a drawback that you could not check 4g accurately.
本発明は、かかる状況に鑑みてなされたものであり、
その目的は、１種類の試料で分離カラム5,濃縮カラム4
g,及び上記装置の校正を容易且つ正確に行なえるような
陽イオン分析装置を提供することにある。The present invention has been made in view of such circumstances,
The purpose is to separate one sample with 5 separation columns and 4 concentration columns.
g) and to provide a cation analyzer capable of easily and accurately calibrating the above device.
＜問題点を解決するための手段＞ このような目的を達成するために、本発明は、 被測定液を濃縮カラムで濃縮した後、濃縮した被測定
液を溶離液によって分離カラムに導いて被測定溶液中の
陽イオンを分離し、分離した陽イオンを検出器によって
検出して陽イオンの濃度を測定する陽イオン分析装置に
おいて、 一定容積の計量管を有し、この計量管に採取した既知
濃度の標準液を、前記濃縮カラムの劣化チェック時にお
いては前記濃縮カラム側に切り替えて送出し、前記分離
カラムの分離性能チェック時においては前記溶離液によ
って前記分離カラム側に切り替えて送出する第１切替弁
と、 前記溶離後の流路を前記濃縮カラム側と前記分離カラ
ム側とに切り替えられるようになっていて、前記濃縮カ
ラムの劣化チェック時には前記溶離液の流路が前記濃縮
カラム側に切替えられ、前記濃縮カラムで濃縮された前
記標準液を前記分離カラムに送出する第２切替弁と、 を具備し、前記濃縮カラムの劣化チェックと前記分離カ
ラムの分離性能チェックを前記計量管に採取した既知濃
度の標準液によって行うことを特徴としている。<Means for Solving Problems> In order to achieve such an object, according to the present invention, after concentrating a liquid to be measured in a concentration column, the concentrated liquid to be measured is guided to a separation column by an eluent to be separated. A cation analyzer that separates cations in a measurement solution and detects the separated cations with a detector to measure the concentration of cations. A standard solution having a concentration is switched to the concentration column side and sent out at the time of checking deterioration of the concentration column, and switched and sent to the separation column side by the eluent at the time of checking the separation performance of the separation column. A switching valve and the flow path after elution are switched between the concentration column side and the separation column side, and the eluent of the eluent is checked when the concentration column is checked for deterioration. A second switching valve whose flow path is switched to the concentration column side and which sends the standard solution concentrated in the concentration column to the separation column; and a deterioration check of the concentration column and separation of the separation column. It is characterized in that the performance check is performed by using a standard solution of a known concentration collected in the measuring tube.
＜実施例＞ 以下、本発明について図を用いて詳細に説明する。第
１図は本発明実施例を説明するための陽イオン分析装置
の構成説明図であり、図中、第４図と同一記号は同一意
味を持たせて説明しここでの重複説明は省略する。ま
た、８は純水を貯溜してなる純水槽、10は三方電磁弁で
ある。更に、第２図及び第３図は上記陽イオン分析装置
の動作を説明するためのタイムチャートであり、以下、
この図を使用しながら本発明実施例について説明してゆ
く。<Example> Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is a structural explanatory view of a cation analyzer for explaining an embodiment of the present invention. In the figure, the same symbols as those in FIG. 4 are explained with the same meanings, and duplicate explanations are omitted here. . Further, 8 is a pure water tank for storing pure water, and 10 is a three-way solenoid valve. Further, FIG. 2 and FIG. 3 are time charts for explaining the operation of the above-mentioned cation analysis device.
Embodiments of the present invention will be described with reference to this drawing.
まず、分離カラム５のチェック方法について説明す
る。第１図及び第２図において、最初、第１ポンプ2a,
第２ポンプ2b,第２切換弁4,及び三方電磁弁９がオンと
され、第１切換弁３がオフにされる。このため、第１ポ
ンプ2aが駆動して、溶離液槽1a内の溶離液が、送液ポン
プ2a→第２切換弁４の第１及び第６の接続口4a,4f→濃
縮カラム4g→第１切換弁３の第１及び第２の接続口3a,3
b→第２切換弁４の第３及び第２の接続口4c,4b→分離カ
ラム５→検出器６を経由し、廃液槽1cへと流れる。送液
ポンプ2bが駆動して、試料槽1b内の被測定液が、三方電
磁弁９→送液ポンプ2b→第２切換弁４の第４及び第５の
接続口4d,4eを経由し廃液槽1dへ流れる。このような状
態において時間T1のとき、1.6ppmのMg2+イオン,1.6ppm
のCa2+イオン,40ppmのNH4 +イオン,400ppmのN2H4イオ
ン，及びＢとしての濃度が1000ppmのBO3 3-イオンを含む
試料（以下、「第４試料」という）を、シリンジ3hを用
いて一定量（例えば1ml）だけ第１切換弁３の第４接続
口3dに注入すると、該試料によって計量管3g（例えば内
容積が100μ）内が満たされるようになる。この状態
で時間T2のとき、第１切換弁３がオンにされると、その
内部流路が第４図の実線接続状態から破線接続状態に切
換えられ上記計量管3g内の試料が溶離液で搬送されて分
離カラム５に至り、ここで該試料に含まれている陽イオ
ンが分離され、その後、検出器６で検出される。このよ
うにして検出器６で検出された信号は、図示しない表示
装置（例えば記録計）に導かれクロマトグラムを描き、
このクロマトグラムから分離カラム５の良否（性能）が
チェックされるようになる。First, a method of checking the separation column 5 will be described. In FIGS. 1 and 2, first, the first pump 2a,
The second pump 2b, the second switching valve 4, and the three-way solenoid valve 9 are turned on, and the first switching valve 3 is turned off. For this reason, the first pump 2a is driven so that the eluent in the eluent tank 1a is transferred from the liquid feed pump 2a to the first and sixth connection ports 4a and 4f of the second switching valve 4 to the concentration column 4g to the fourth column. First and second connection ports 3a, 3 of the switching valve 3
b → Third and second connection ports 4c and 4b of the second switching valve 4 → Separation column 5 → Flow through the detector 6 to the waste liquid tank 1c. The liquid feed pump 2b is driven, and the liquid to be measured in the sample tank 1b passes through the three-way solenoid valve 9 → the liquid feed pump 2b → the fourth and fifth connection ports 4d and 4e of the second switching valve 4 to waste liquid. It flows to tank 1d. In this state, at time T 1 , 1.6ppm Mg 2+ ion, 1.6ppm
Ca 2+ ion of 40ppm, NH 4 + ion of 40ppm, N 2 H 4 ion of 400ppm, and BO 3 3- ion of concentration of 1000ppm as B (hereinafter referred to as "fourth sample") When 3 h is used to inject a fixed amount (for example, 1 ml) into the fourth connection port 3d of the first switching valve 3, the sample fills the inside of the measuring pipe 3g (for example, the internal volume is 100 μ). In this state, at time T 2 , when the first switching valve 3 is turned on, its internal flow path is switched from the solid line connection state in FIG. 4 to the broken line connection state, and the sample in the measuring pipe 3g is the eluent. Is transported to the separation column 5 where the cations contained in the sample are separated and then detected by the detector 6. The signal thus detected by the detector 6 is guided to a display device (not shown) (for example, a recorder) to draw a chromatogram,
From this chromatogram, the quality (performance) of the separation column 5 can be checked.
次に、濃縮カラム4gのチェック方法と陽イオン分析装
置の校正方法について説明する。第１図及び第３図にお
いて、最初、第１ポンプ2aと第２ポンプ2bがオンとさ
れ、三方電磁弁9,第１切換弁3,及び第２切換弁４がオフ
にされる。このため、第１ポンプ2aが駆動して、溶離液
槽1a内の溶離液が、送液ポンプ2a→第２切換弁４の第１
及び第２の接続口4a,4b→分離カラム５→検出器６を経
由して廃液槽1cへ流れる。送液ポンプ2bが駆動して、純
水槽８内の純水が、三方電磁弁９→送液ポンプ2b→第２
切換弁４の第４及び第３の接続口4d,4c→第１切換弁３
の第２及び第１の接続口3b,3a→濃縮カラム4g→第２切
換弁４の第６及び第５の接続口4f,4eを経由し、廃液槽1
cへと流れる。このような状態において時間T1のとき、
上記第４試料をシリンジ3hを用いて一定量（例えば1m
l）だけ第１切換弁３の第４接続口3dに注入すると、該
試料によって計量管3g（例えば内容積が100μ）内が
満たされるようになる。この状態で時間T2のとき、第１
切換弁３がオンにされると、その内部流路が第４図の実
線接続状態から破線接続状態に切換えられ上記計量管3g
内の試料が上記純水で搬送されて濃縮カラム4gに至り、
ここで該試料に含まれている陽イオンが濃縮・保持され
る。この状態で時間T3のとき、第２切換弁４がオンにさ
れると、その内部流路が第１図の実線接続状態から破線
接続状態に切換えられ、上記濃縮カラム4g内に濃縮・保
持されていた陽イオンは溶離液に搬送されて分離カラム
５に至ってクロマトグラフィックに分離され、その後、
検出器６で検出される。このようにして検出器６で検出
された信号は、図示しない表示装置（例えば記録計）に
導かれクロマトグラムを描き、このクロマトグラムにお
ける各成分のピーク面積と前記分離カラム５の良否チェ
ックのときに作成されたクロマトグラムにおける各成分
のピーク面積とを比較して濃縮カラム4gの劣化状態がチ
ェックされる。また、このような濃縮カラム4gのチェッ
クや前記分離カラム５のチェックで異常がないことが確
認されたら、陽イオン分析装置の校正が行われる。即
ち、試料中の各成分イオンを上述のようにして分析し上
記クロマトグラムから各成分の１点校正が行なわれる。Next, a method for checking the concentration column 4g and a method for calibrating the cation analyzer will be described. In FIGS. 1 and 3, first, the first pump 2a and the second pump 2b are turned on, and the three-way solenoid valve 9, the first switching valve 3, and the second switching valve 4 are turned off. For this reason, the first pump 2a is driven so that the eluent in the eluent tank 1a becomes the first of the liquid feed pump 2a and the second switching valve 4.
And the second connection ports 4a, 4b → separation column 5 → detector 6 to the waste liquid tank 1c. The liquid feed pump 2b is driven so that the pure water in the deionized water tank 8 moves to the three-way solenoid valve 9 → the liquid feed pump 2b → the second
Fourth and third connection ports 4d, 4c of switching valve 4 → first switching valve 3
Via the second and first connection ports 3b, 3a of the column → the concentration column 4g → the sixth and fifth connection ports 4f, 4e of the second switching valve 4 and the waste liquid tank 1
It flows to c. In this state, at time T 1 ,
Use the syringe 3h to measure a certain amount of the fourth sample (for example, 1m
When l) is injected into the fourth connection port 3d of the first switching valve 3, the sample fills the inside of the measuring pipe 3g (for example, the internal volume is 100 μ). In this state, at time T 2 , the first
When the switching valve 3 is turned on, its internal flow path is switched from the solid line connection state in FIG.
The sample inside is transported by the pure water and reaches the concentration column 4g,
Here, the cations contained in the sample are concentrated and retained. In this state, at time T 3 , when the second switching valve 4 is turned on, its internal flow path is switched from the solid line connection state in FIG. 1 to the broken line connection state, and the concentration / holding in the concentration column 4g is performed. The cations thus formed are conveyed to the eluent, reach the separation column 5 and are chromatographically separated.
It is detected by the detector 6. The signal thus detected by the detector 6 is guided to a display device (not shown) (not shown) to draw a chromatogram, and the peak area of each component in this chromatogram and the quality of the separation column 5 are checked. The deterioration state of the concentration column 4 g is checked by comparing the peak areas of the respective components in the chromatogram prepared in Step 1. If it is confirmed by checking the concentration column 4g and the separation column 5 as described above, the cation analyzer is calibrated. That is, each component ion in the sample is analyzed as described above, and one-point calibration of each component is performed from the chromatogram.
＜発明の効果＞ 以上、詳細に説明したように本発明の陽イオン分析装
置は、計量管に既知濃度の標準液を採取し、この採取し
た標準液を分離カラムの分離性能チェック時においては
分離カラムに切り替えて送出し、濃縮カラムの劣化チェ
ック時においては濃縮カラム側に切り替えて送出するよ
うにしてカラムの校正を行うようにしたもので、１種類
の試料で分離カラム、濃縮カラムの校正を容易に且つ正
確に行うことができる。<Effects of the Invention> As described above in detail, the cation analyzer of the present invention collects a standard solution having a known concentration in a measuring tube, and separates the collected standard solution at the time of checking the separation performance of the separation column. The column is calibrated by switching to the column and sending it out, and when checking the deterioration of the concentration column, the column is calibrated by switching to the concentration column side and sending it out. It can be done easily and accurately.
この構成は、分離カラムを校正する場合、従来の標準
液の濃度の200倍濃いものを使用できるので、コンタミ
ネーションを生じ難く、従来の測定誤差を極度に小さな
ものにでき、校正するための試料も１種類あれば十分
で、一点校正ができるという利点もある。With this configuration, when calibrating the separation column, it is possible to use a concentration that is 200 times higher than the concentration of the conventional standard solution, so contamination is unlikely to occur and the conventional measurement error can be made extremely small. Also, one type is enough, and there is also an advantage that one-point calibration can be performed.
第１図は本発明の実施例を説明するための陽イオン分析
装置の構成説明図、第２図及び第３図はタイムチャー
ト、第４図は従来例を説明するための陽イオン分析装置
の構成説明図である。 1a〜1d,8……槽、2a,2b……送液ポンプ、3,4……切換
弁、５……分離カラム、６……検出器、７……恒温槽、
９……三方電磁弁FIG. 1 is a configuration explanatory view of a cation analyzer for explaining an embodiment of the present invention, FIGS. 2 and 3 are time charts, and FIG. 4 is a cation analyzer for explaining a conventional example. It is a structure explanatory view. 1a to 1d, 8 …… tank, 2a, 2b …… liquid transfer pump, 3, 4 …… switching valve, 5 …… separation column, 6 …… detector, 7 …… constant temperature bath,
9 ... Three-way solenoid valve
Claims (1)
した被測定液を溶離液によって分離カラムに導いて被測
定溶液中の陽イオンを分離し、分離した陽イオンを検出
器によって検出して陽イオンの濃度を測定する陽イオン
分析装置において、 一定容積の計量管を有し、この計量管に採取した既知濃
度の標準液を、前記濃縮カラムの劣化チェック時におい
ては前記濃縮カラム側に切り替えて送出し、前記分離カ
ラムの分離性能チェック時においては前記溶離液によっ
て前記分離カラム側に切り替えて送出する第１切替弁
と、 前記溶離後の流路を前記濃縮カラム側と前記分離カラム
側とに切り替えられるようになっていて、前記濃縮カラ
ムの劣化チェック時には前記溶離液の流路が前記濃縮カ
ラム側に切替えられ、前記濃縮カラムで濃縮された標準
液を前記分離カラムに送出する第２切替弁と、 を具備し、前記濃縮カラムの劣化チェックと前記分離カ
ラムの分離性能チェックを前記計量管に採取した既知濃
度の標準液によって行うことを特徴とした陽イオン分析
装置。1. A solution to be measured is concentrated in a concentration column, and then the concentrated solution to be measured is introduced into a separation column by an eluent to separate cations in the solution to be measured, and the separated cations are detected by a detector. In a cation analyzer that measures the concentration of cations by using a metering tube with a fixed volume, a standard solution with a known concentration collected in this metering tube is used for the concentration column side when checking the deterioration of the concentration column. A first switching valve that switches to the separation column side and sends it by switching to the separation column side by the eluent when checking the separation performance of the separation column; When the deterioration of the concentration column is checked, the flow path of the eluent is switched to the concentration column side and the concentration column is concentrated. A second switching valve for sending a standard solution to the separation column; and a deterioration check of the concentration column and a separation performance check of the separation column are performed by the standard solution of a known concentration collected in the measuring tube. Cation analyzer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62271560A JPH0820431B2 (en) | 1987-10-27 | 1987-10-27 | Cation analyzer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP62271560A JPH0820431B2 (en) | 1987-10-27 | 1987-10-27 | Cation analyzer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH01113657A JPH01113657A (en) | 1989-05-02 |
| JPH0820431B2 true JPH0820431B2 (en) | 1996-03-04 |
Family
ID=17501779
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP62271560A Expired - Fee Related JPH0820431B2 (en) | 1987-10-27 | 1987-10-27 | Cation analyzer |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0820431B2 (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158368A (en) * | 2015-08-31 | 2015-12-16 | 武汉宇虹环保产业发展有限公司 | Automatic calibration system of online ion chromatograph |
Families Citing this family (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3695195B2 (en) | 1998-06-02 | 2005-09-14 | 日本精工株式会社 | Ball screw mechanism and linear motion device |
| JP5342137B2 (en) | 2007-12-27 | 2013-11-13 | 三菱重工業株式会社 | Scroll compressor |
Family Cites Families (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS6083957U (en) * | 1983-11-15 | 1985-06-10 | 電気化学計器株式会社 | Sample concentration device |
| JPS61182849A (en) * | 1985-02-08 | 1986-08-15 | Honda Motor Co Ltd | Manufacture of chaplet filled with cast sand |
| JPS61195354A (en) * | 1985-02-26 | 1986-08-29 | Yokogawa Electric Corp | Method and instrument for measuring trace cation |
-
1987
- 1987-10-27 JP JP62271560A patent/JPH0820431B2/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105158368A (en) * | 2015-08-31 | 2015-12-16 | 武汉宇虹环保产业发展有限公司 | Automatic calibration system of online ion chromatograph |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH01113657A (en) | 1989-05-02 |
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| LAPS | Cancellation because of no payment of annual fees |