JPH0915190A - Multi-sensor - Google Patents
Multi-sensorInfo
- Publication number
- JPH0915190A JPH0915190A JP7160369A JP16036995A JPH0915190A JP H0915190 A JPH0915190 A JP H0915190A JP 7160369 A JP7160369 A JP 7160369A JP 16036995 A JP16036995 A JP 16036995A JP H0915190 A JPH0915190 A JP H0915190A
- Authority
- JP
- Japan
- Prior art keywords
- sensor
- electrode
- measurement
- ion
- life
- 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
Landscapes
- Automatic Analysis And Handling Materials Therefor (AREA)
Abstract
Description
【0001】[0001]
【産業上の利用分野】本発明は一つのパッケージに複数
のセンサを収めたマルチセンサに係り、特に血液中の生
化学成分を測定するに好適な、イオン選択性電極などの
センサを一つのパッケージに複数収めたマルチセンサに
関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-sensor in which a plurality of sensors are housed in a single package, and in particular, a sensor such as an ion selective electrode suitable for measuring biochemical components in blood is packaged in a single package. The present invention relates to a multi-sensor housed in plural.
【0002】[0002]
【従来の技術】従来、イオン選択性電極などのセンサを
一つのパッケージに複数収めたマルチセンサとしては、
計量管理,35,31,(1986)において報告され
ている、ナトリウム,カリウム,塩素イオン用のイオン
選択性電極、並びに参照電極を一体化したマルチセンサ
などがある。2. Description of the Related Art Conventionally, as a multi-sensor in which a plurality of sensors such as ion selective electrodes are contained in one package,
There is a multi-sensor in which an ion-selective electrode for sodium, potassium, and chloride ions and a reference electrode are integrated, which are reported in Metrology Control, 35, 31, (1986).
【0003】[0003]
【発明が解決しようとする課題】上記従来のマルチセン
サは、個々の測定項目に対応するセンサの寿命が異なる
場合、一つの測定項目に対応するセンサの寿命が来て使
用不能となると、たとえ他のセンサが使用可能であって
も、寿命が来たセンサが検出する測定項目を測定したい
場合、マルチセンサを交換する必要があり、不経済であ
り、また煩雑であるという課題があった。In the conventional multi-sensor described above, if the sensors corresponding to individual measurement items have different lifespans, even if the sensor corresponding to one measurement item reaches the end of its service life and becomes unusable, Even if the above sensor can be used, there is a problem that it is uneconomical and complicated because it is necessary to replace the multi-sensor if it is necessary to measure the measurement item detected by the sensor that has reached the end of its life.
【0004】本発明の目的は、マルチセンサに収められ
た個々の測定項目に対応するセンサの寿命が異なり、一
つの測定項目に対応するあるセンサの寿命が来て使用不
能となっても、そのセンサが検出していた測定項目を継
続して測定可能とし、マルチセンサを交換する頻度を低
減し、経済性と取り扱いの簡便性を改善することにあ
る。It is an object of the present invention that even if a sensor corresponding to each measurement item contained in a multi-sensor has a different life, and a sensor corresponding to one measurement item reaches the end of its service life, the sensor cannot be used. It is to make it possible to continuously measure the measurement item detected by the sensor, reduce the frequency of replacing the multi-sensor, and improve the economical efficiency and the ease of handling.
【0005】[0005]
【課題を解決するための手段】上記目的は、上記マルチ
センサのパッケージ内に、少なくとも一つの(他よりセ
ンサ寿命の短い)測定項目に対応して複数のセンサを設
け、マルチセンサの使用開始当初はこの測定項目につい
てはこれら複数のセンサのうち一つだけを測定試料溶液
に接触させて測定に供して他は温存し、このセンサの寿
命が来る度に順次その次のセンサ一つだけを測定試料溶
液に接触させて測定に供することを、この測定項目に対
応する複数のセンサの全てについて繰り返すことにより
達成される。The object is to provide a plurality of sensors corresponding to at least one measurement item (having a shorter sensor life than others) in the package of the multi-sensor, and to start using the multi-sensor at the beginning. For this measurement item, only one of these multiple sensors is brought into contact with the measurement sample solution for measurement, the other is preserved, and the next sensor is measured one after another at the end of the life of this sensor. The contacting with the sample solution and the measurement are repeated for all the plurality of sensors corresponding to the measurement item.
【0006】[0006]
【作用】他の測定項目のセンサよりセンサ寿命の短い測
定項目のセンサがマルチセンサのパッケージ内に一つし
か無い場合、このセンサの寿命が来ると、マルチセンサ
を交換しないとこの測定項目は測定不能となる。しか
し、他の測定項目のセンサよりセンサ寿命の短い測定項
目のセンサがマルチセンサのパッケージ内に複数設け、
測定試料溶液に接触させて測定に供するセンサをそのう
ちの一つずつに限定して他を温存することにより、たと
え個々のセンサの寿命が来ても、温存されていた別のセ
ンサに切り替えて使用することにより、この測定項目に
ついては、個々のセンサの寿命の総和まで使用可能とな
る。従って、たとえ特定の測定項目に対応するセンサの
1個当たりの寿命が短くても、他の測定項目に対応する
より長寿命のセンサの寿命に相当する個数だけ、短寿命
センサをマルチセンサのパッケージ内に収めて、上記の
手段の項で説明したごとく順次切り替えて使用すること
により、この測定項目を継続して測定可能とし、マルチ
センサを交換する頻度を低減し、経済性と取り扱いの簡
便性を改善できる。[Function] When there is only one sensor of the measurement item having a shorter sensor life than the sensor of other measurement items in the package of the multi-sensor, when the life of this sensor is reached, this measurement item is measured unless the multi-sensor is replaced. It becomes impossible. However, multiple sensors for measurement items whose sensor life is shorter than those of other measurement items are provided in the multi-sensor package,
By limiting the number of sensors to be used for measurement by contacting with the measurement sample solution and saving the other ones, even if the life of each sensor expires, switch to another saved sensor for use By doing so, this measurement item can be used up to the total life of the individual sensors. Therefore, even if the life of one sensor corresponding to a specific measurement item is short, the number of short-life sensors corresponding to the life of a sensor having a longer life corresponding to another measurement item is reduced to a multi-sensor package. It is possible to continuously measure this measurement item by using it by sequentially switching it as described in the section of the above means, reducing the frequency of replacing the multi-sensor, economical and easy to handle. Can be improved.
【0007】[0007]
【実施例】本発明の実施例を以下に説明する。図1は本
発明が適用されるマルチセンサの構成断面図の一例であ
る。フローセル型電極ボディ1内に流路が形成され、こ
の流路に対して曲面状に突出する開口部が設けられ、こ
の曲面に沿って一つ以上の感応膜2a,2b,2c,2
c′,2c″が接着される。この感応膜2は高分子物質
を含み、感応物質や可塑剤などの感応膜成分等が分散さ
れている。個々の感応膜の流路と反対側の面には内部電
解質層3を介して内部電極4が形成される。内部電解質
層3としては塩化ナトリウムなどの電解質を含む高分子
ゲルなどが好適に用いられ、この高分子として好適に用
いられるものの例としては、ポリビニルアルコール,ポ
リエチレングリコール,アガロース等が挙げられる。ま
た、これらにポリオールなどの保湿用材料を添加して用
いても良い。内部電極4は銀塩化銀等からなる湾曲させ
た板状電極を用いることができるほか、湾曲や接着の容
易な網目状の電極も用いることができる。リード線等を
この内部電極に結線して、フローセル型電極ボディの外
に信号を取り出す。個々の感応膜2a,2b等に対応す
る、内部電解質層3,内部電極4はお互いに電気的に絶
縁して形成されるために、互いに独立したイオン電極
a,b,c,c′,c″として機能する。また、本実施
例では参照電極5も同一のフローセル型電極ボディに形
成した。Embodiments of the present invention will be described below. FIG. 1 is an example of a sectional view of the configuration of a multi-sensor to which the present invention is applied. A flow channel is formed in the flow cell type electrode body 1, and an opening protruding in a curved shape is provided to the flow channel, and one or more sensitive films 2a, 2b, 2c, 2 are provided along the curved surface.
c ', 2c "are adhered. The sensitive film 2 contains a polymer substance and the sensitive film components such as the sensitive substance and the plasticizer are dispersed. The surface of the individual sensitive film opposite to the flow path. An internal electrode 4 is formed on the inner electrode 4 via an internal electrolyte layer 3. As the internal electrolyte layer 3, a polymer gel containing an electrolyte such as sodium chloride is preferably used, and an example of a polymer that is preferably used as this polymer Examples thereof include polyvinyl alcohol, polyethylene glycol, agarose, etc. In addition, a moisturizing material such as polyol may be added to these, and the internal electrode 4 is a curved plate electrode made of silver silver chloride or the like. It is also possible to use a mesh-shaped electrode that is easy to bend and adhere to .. Connect a lead wire etc. to this internal electrode to take out a signal to the outside of the flow cell type electrode body. Since the inner electrolyte layer 3 and the inner electrode 4 corresponding to the individual sensitive membranes 2a, 2b, etc. are formed to be electrically insulated from each other, the ion electrodes a, b, c, c ', c independent of each other are formed. ″ Functions. Further, in this example, the reference electrode 5 was also formed in the same flow cell type electrode body.
【0008】本発明では感応膜2a,2b,2c等とし
て、水素イオン,ナトリウムイオン,カリウムイオン,
リチウムイオン,カルシウムイオン,マグネシウムイオ
ン,塩素イオン等のイオンに応答するイオン選択性の感
応膜が好適に用いられ、それぞれ独立した内部電解質
層,内部電極やリード線等と組み合わせることにより、
水素イオン,ナトリウムイオン,カリウムイオン,リチ
ウムイオン,カルシウムイオン,マグネシウムイオン,
塩素イオン等の目的イオンa,b,c等に応答するイオ
ン選択性電極a,b,c等として機能する。これらの感
応膜は、それぞれ従来公知の方法により形成される。ま
た本実施例では、参照電極塩5は、塩素イオン用もしく
はカリウムイオン用の感応膜を用いるイオン選択性電極
を用い、参照電極液用の流路7には塩化カリウムなどの
一定濃度の水溶液を参照電極液として流通させることに
より、参照電極として機能させた。もちろん、銀塩化銀
電極を上記の塩素イオン用もしくはカリウムイオン用の
感応膜を用いるイオン選択性電極の代わりに用いて参照
電極を形成しても良い。In the present invention, as the sensitive films 2a, 2b, 2c, etc., hydrogen ions, sodium ions, potassium ions,
An ion-selective sensitive film that responds to ions such as lithium ion, calcium ion, magnesium ion, and chlorine ion is preferably used, and by combining each with an independent internal electrolyte layer, internal electrode, lead wire, etc.,
Hydrogen ion, sodium ion, potassium ion, lithium ion, calcium ion, magnesium ion,
It functions as ion-selective electrodes a, b, c, etc. that respond to target ions a, b, c, etc., such as chlorine ions. Each of these sensitive films is formed by a conventionally known method. Further, in this embodiment, the reference electrode salt 5 is an ion-selective electrode using a sensitive membrane for chlorine ions or potassium ions, and an aqueous solution having a constant concentration such as potassium chloride is used for the flow path 7 for the reference electrode solution. It was made to function as a reference electrode by circulating it as a reference electrode liquid. Of course, a silver-silver chloride electrode may be used in place of the above-mentioned ion-selective electrode using a sensitive film for chloride ion or potassium ion to form a reference electrode.
【0009】図中に模式的に示したように、本実施例の
マルチセンサの内部に設けられた流路は、基本的には複
数のイオン選択性電極に測定試料溶液を供給する測定試
料溶液用の流路6と、参照電極に参照電極液を供給する
参照電極液用の流路7、並びに測定試料溶液と参照電極
液が合流した後に、両者が混合した液が流通する廃液流
路8の3種に大別される。ただし、本実施例では廃液流
路が8,8′,8″の様に複数設けられ、測定試料溶液
と参照電極液が合流する合流点もそれに応じて複数設け
られている点が、従来のマルチセンサと根本的に異な
る。As schematically shown in the figure, the flow path provided inside the multi-sensor of this embodiment is basically a measurement sample solution for supplying the measurement sample solution to a plurality of ion-selective electrodes. Flow channel 6, a reference electrode liquid flow channel 7 for supplying the reference electrode liquid to the reference electrode, and a waste liquid flow channel 8 in which a mixed solution of the measurement sample solution and the reference electrode liquid flows. It is roughly divided into three types. However, in the present embodiment, a plurality of waste liquid flow paths are provided like 8, 8 ′, 8 ″, and a plurality of confluence points at which the measurement sample solution and the reference electrode solution meet are also provided correspondingly, which is a conventional point. Fundamentally different from multi-sensor.
【0010】次に、本発明による実施例の動作の概略を
図1を用いて説明する。マルチセンサの使用開始当初は
廃液流路8のみが使用され、残りの8′,8″は閉鎖さ
れている。この様な流路の選択は、例えば、マルチセン
サの外部に設けられた電磁弁の制御等によって可能とな
る。測定試料溶液が測定試料溶液用の流路6からイオン
選択性電極a,b,cに供給され、また参照電極液が参
照電極液用の流路7から参照電極5に供給され、さらに
イオン選択性電極c′,c″を経由して、測定試料溶液
と合流する。するとこの合流点でフリーフローの液絡が
形成され、イオン選択性電極a,b,cで、測定試料溶
液中の目的イオンa,b,cの活量の対数に比例する、
参照電極5を基準とした起電力が生じる。濃度未知の測
定試料溶液と濃度既知の測定試料溶液の起電力を比較す
ることにより、未知の測定試料溶液の濃度が求められ
る。測定終了後は、測定試料溶液と参照電極液は、廃液
流路8を経由してマルチセンサの外部に排出される。Next, the outline of the operation of the embodiment according to the present invention will be described with reference to FIG. At the beginning of use of the multi-sensor, only the waste liquid flow path 8 is used and the remaining 8 ′ and 8 ″ are closed. Selection of such a flow path is performed, for example, by a solenoid valve provided outside the multi-sensor. The measurement sample solution is supplied from the flow path 6 for the measurement sample solution to the ion selective electrodes a, b, c, and the reference electrode liquid is supplied from the flow path 7 for the reference electrode liquid to the reference electrode. 5, and then merges with the measurement sample solution via the ion-selective electrodes c ′ and c ″. Then, a free-flow liquid junction is formed at this confluence point, which is proportional to the logarithm of the activity of the target ions a, b, c in the measurement sample solution at the ion-selective electrodes a, b, c.
An electromotive force is generated with reference to the reference electrode 5. The concentration of the unknown measurement sample solution is obtained by comparing the electromotive forces of the measurement sample solution of unknown concentration and the measurement sample solution of known concentration. After the measurement is completed, the measurement sample solution and the reference electrode solution are discharged to the outside of the multi-sensor via the waste liquid channel 8.
【0011】ここで、イオン選択性電極c′,c″には
試料溶液が接触せず、参照電極液のみが接触するため、
試料溶液中に含まれる蛋白質や脂質,糖質やその他の夾
雑物等による感応膜の劣化が起きず、電極性能の劣化は
ほとんど生じず、性能が温存される。一方、イオン選択
性電極cは試料溶液と接触するため、試料溶液中に含ま
れるこれらの物質の影響を受けるため、感応膜が徐々に
劣化してゆき、電極性能も徐々に劣化してゆく。Since the sample solution does not come into contact with the ion selective electrodes c'and c ", only the reference electrode solution comes into contact therewith,
The sensitive membrane is not deteriorated by the proteins, lipids, sugars and other contaminants contained in the sample solution, and the electrode performance is hardly deteriorated, and the performance is preserved. On the other hand, since the ion-selective electrode c comes into contact with the sample solution, it is affected by these substances contained in the sample solution, so that the sensitive membrane is gradually deteriorated and the electrode performance is gradually deteriorated.
【0012】この様にして最終的にイオン選択性電極c
が劣化して寿命が来ると、次に廃液流路8(と廃液流路
8″)を閉鎖し、代わりに廃液流路8′のみを使用し、
またそれと同時にイオン選択性電極cの使用を中止し、
代わりにイオン選択性電極c′の使用を開始して、上記
と同様に測定を行う。すると、目的イオンcの測定を行
うイオン選択性電極がcからc′に変更されただけで、
全く同様に測定が継続でき、イオン選択性電極c′の寿
命が来るまで引き続いて測定が可能である。イオン選択
性電極c′の寿命が来たら、同様に廃液流路8′(と廃
液流路8)を閉鎖し、代わりに廃液流路8″のみを使用
し、またそれと同時にイオン選択性電極c′の使用を中
止し、代わりにイオン選択性電極c″の使用を開始し
て、上記と同様に測定を行う。In this way, finally the ion-selective electrode c
When the liquid deteriorates and reaches the end of its life, the waste liquid flow path 8 (and the waste liquid flow path 8 ″) is closed next, and only the waste liquid flow path 8 ′ is used instead.
At the same time, stop using the ion-selective electrode c,
Instead, the use of the ion-selective electrode c ′ is started, and the measurement is performed in the same manner as above. Then, only the ion selective electrode for measuring the target ion c is changed from c to c ′,
The measurement can be continued in exactly the same manner, and the measurement can be continued until the life of the ion-selective electrode c'is reached. When the life of the ion-selective electrode c'is reached, the waste liquid flow path 8 '(and the waste liquid flow path 8) is similarly closed and only the waste liquid flow path 8 "is used instead, and at the same time, the ion selective electrode c'is used. The use of ′ is stopped, the use of the ion-selective electrode c ″ is started instead, and the measurement is performed as described above.
【0013】この様に、温存されていた電極を順次測定
に供することにより、マルチセンサ全体は個々のイオン
選択性電極c,c′,c″の寿命の総和まで使用が可能
となるため、従来のように目的イオンcに対してイオン
選択性電極を1個しか備えない場合と比較して、イオン
電極cの設置数だけ寿命を延長することができる。As described above, by sequentially supplying the preserved electrodes to the measurement, the entire multi-sensor can be used up to the total life of the individual ion-selective electrodes c, c ', c ". As compared with the case where only one ion-selective electrode is provided for the target ion c as described above, the life can be extended by the number of installed ion electrodes c.
【0014】なお、本実施例では最も寿命の短い目的イ
オンcに対するイオン選択性電極cのみを複数備えた形
態を例にとって説明したが、本発明の精神はこの例に限
定されることはなく、より寿命の長いイオン選択性電極
a,b等を同様に複数設置して、それらのマルチセンサ
としての寿命を延長することも当然可能である。Although the present embodiment has been described by taking as an example a mode in which only a plurality of ion-selective electrodes c for the target ion c having the shortest life are provided, the spirit of the present invention is not limited to this example. It is naturally possible to extend the life of these multi-sensors by installing a plurality of ion-selective electrodes a and b having a longer life in the same manner.
【0015】また、本実施例では廃液流路を複数設けて
未使用電極を温存したが、当然他の方式で使用電極を温
存することもできる。例えば、測定試料溶液の導入流路
を複数設け、それぞれの測定試料溶液の導入流路に対し
てイオン選択性電極を別々に設け、それぞれの測定試料
溶液の導入流路を順次切り替えて使用することにより、
同様の効果を得ることもできる。Further, in the present embodiment, a plurality of waste liquid flow paths are provided to save the unused electrodes, but it is of course possible to save the used electrodes by another method. For example, a plurality of measurement sample solution introducing channels are provided, ion selective electrodes are separately provided for the respective measurement sample solution introducing channels, and the measurement sample solution introducing channels are sequentially switched and used. Due to
Similar effects can be obtained.
【0016】[0016]
【発明の効果】本発明によれば、マルチセンサのパッケ
ージ内に、少なくとも一つの(他よりセンサ寿命の短
い)測定項目に対応して複数のセンサを設け、マルチセ
ンサの使用開始当初はこの測定項目についてはこれら複
数のセンサのうち一つだけを測定試料溶液に接触させて
測定に供して他は温存し、このセンサの寿命が来る度に
順次その次のセンサ一つだけを測定試料溶液に接触させ
て測定に供することを、この測定項目に対応する複数の
センサの全てについて繰り返すことにより、たとえマル
チセンサに収められた個々の測定項目に対応するセンサ
の寿命が異なり、一つの測定項目に対応する一つのセン
サの寿命が来て使用不能となっても、そのセンサが検出
していた測定項目を継続して測定可能とし、マルチセン
サを交換する頻度を低減し、経済性と取り扱いの簡便性
を改善できる。According to the present invention, a plurality of sensors are provided in a package of a multi-sensor in correspondence with at least one measurement item (having a shorter sensor life than others), and the measurement is performed at the beginning of use of the multi-sensor. For items, only one of these sensors is put in contact with the measurement sample solution for measurement, and the other is preserved.Whenever this sensor reaches the end of its life, only the next sensor is added to the measurement sample solution. By repeating contacting and performing measurements for all of the multiple sensors corresponding to this measurement item, even if the sensors corresponding to the individual measurement items contained in the multi-sensor have different lifespans, one measurement item Even if one corresponding sensor reaches the end of its service life and becomes unusable, the measurement items detected by that sensor can be continuously measured, and the frequency of replacing multiple sensors can be reduced. Hesi, can improve the convenience of the economy and handling.
【図1】本発明に基づくフローセル型マルチセンサの断
面図。FIG. 1 is a sectional view of a flow cell type multi-sensor according to the present invention.
1…フローセル型電極ボディ、2a,2b,2c,2
c′,2c″…感応膜、3…内部電解質層、4…内部電
極、5…参照電極、6…測定試料溶液用の流路、7…参
照電極液用の流路、8,8′,8″…廃液流路。1 ... Flow cell type electrode body, 2a, 2b, 2c, 2
c ', 2c "... Sensitive membrane, 3 ... Internal electrolyte layer, 4 ... Internal electrode, 5 ... Reference electrode, 6 ... Flow path for measurement sample solution, 7 ... Flow path for reference electrode solution, 8, 8', 8 ″ ... Waste liquid flow path.
Claims (5)
するセンサをそれぞれ別個に設けたマルチセンサにおい
て、ある測定項目に対応するセンサを複数設け、この測
定項目に関しては一度に一つのセンサのみを試料溶液と
接触させて測定に供し、残りのセンサは試料溶液と接触
させずに温存し、測定に供したセンサの寿命が来た段階
で温存していたセンサに切り替えて使用することを特徴
とするマルチセンサ。1. A multi-sensor in which sensors corresponding to a plurality of measurement items are individually provided in one package, and a plurality of sensors corresponding to a certain measurement item are provided, and only one sensor at a time is provided for this measurement item. It is used for measurement by contacting with the sample solution, the remaining sensor is saved without contacting the sample solution, and it is used by switching to the sensor that was saved at the stage when the sensor used for measurement reached the end of its life. A multi-sensor.
設けられた複数の流路を外部に設けられた弁などにより
切り替えることにより、一度に一つのセンサのみを試料
溶液と接触させて測定に供するマルチセンサ。2. The method according to claim 1, wherein a plurality of flow paths provided in the multi-sensor are switched by a valve provided externally so that only one sensor is brought into contact with the sample solution at a time for measurement. Multi-sensor to serve.
路が、廃液流路であるマルチセンサ。3. The multi-sensor according to claim 2, wherein the flow path used by switching is a waste liquid flow path.
る複数のセンサを結ぶ各流路の間にそれぞれの廃液流路
が設けられたマルチセンサ。4. The multi-sensor according to claim 3, wherein each waste liquid flow path is provided between each flow path connecting a plurality of sensors corresponding to a certain measurement item.
路が測定試料溶液が流通する流路であるマルチセンサ。5. The multi-sensor according to claim 2, wherein the flow channel used by switching is a flow channel through which the measurement sample solution flows.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7160369A JPH0915190A (en) | 1995-06-27 | 1995-06-27 | Multi-sensor |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP7160369A JPH0915190A (en) | 1995-06-27 | 1995-06-27 | Multi-sensor |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0915190A true JPH0915190A (en) | 1997-01-17 |
Family
ID=15713492
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP7160369A Pending JPH0915190A (en) | 1995-06-27 | 1995-06-27 | Multi-sensor |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0915190A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3023776A1 (en) * | 2013-07-19 | 2016-05-25 | Hitachi High-Technologies Corporation | Anion sensor |
-
1995
- 1995-06-27 JP JP7160369A patent/JPH0915190A/en active Pending
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
EP3023776A1 (en) * | 2013-07-19 | 2016-05-25 | Hitachi High-Technologies Corporation | Anion sensor |
EP3023776A4 (en) * | 2013-07-19 | 2017-03-29 | Hitachi High-Technologies Corporation | Anion sensor |
US10234416B2 (en) | 2013-07-19 | 2019-03-19 | Hitachi High-Technologies Corporation | Anion sensor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
JP4214275B2 (en) | Analysis tool and analyzer | |
EP2149792B1 (en) | Sample analyzing method | |
JP4283669B2 (en) | Analysis tool, analysis device, and method of manufacturing analysis tool | |
JP4246633B2 (en) | Concentration measuring method and concentration measuring apparatus | |
KR101289757B1 (en) | Determination of partial fill in electrochemical strips | |
US6066504A (en) | Coagulation or lysis assays using an electroactive species | |
US20040065562A1 (en) | Electrochemical cell | |
US20070009982A1 (en) | System for differential determination of a proteolytic enzyme level in a bodily fluid | |
KR20140034720A (en) | Method and apparatus for measuring oxidation-reduction potential | |
GB8526902D0 (en) | Electrochemical analysis | |
CA2457500A1 (en) | Methods of determining the concentration of an analyte in a fluid test sample | |
AU713539B2 (en) | Mobile hand-held equipment with biosensor | |
US20040074773A1 (en) | Gas concentration detecting apparatus | |
EP3540419A1 (en) | A device and a method for sensing the conductivity of a fluid | |
EP1151268B1 (en) | Method and device for measuring blood coagulation or lysis by viscosity changes | |
JPH07253411A (en) | Carbon monoxide sensor and detecting method for carbon monoxide concentration | |
WO2017145420A1 (en) | Biosensor | |
JPH0915190A (en) | Multi-sensor | |
WO2006000829A3 (en) | Electrochemical sensing method | |
JPH11337521A (en) | Member for electrophoresis | |
US4440619A (en) | Electro-analytical measuring equipment with measuring cell, comprising integral sensing element and several reference electrodes | |
EP1482296B1 (en) | Method and device for measuring blood coagulating or lysis by viscosity changes | |
JPS61176846A (en) | Ion sensor body | |
SU1265574A1 (en) | Ion-selective differential transducer | |
JPH11295261A (en) | Ion selective electrode and manufacture thereof |