JP2011516856A - 液体中の多数の重金属イオンの同時電気化学的検出 - Google Patents
液体中の多数の重金属イオンの同時電気化学的検出 Download PDFInfo
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Abstract
【選択図】図2
Description
水のような液体中の材料を検出するための技術及びシステムが開示されている。特に亜鉛、鉛、カドミウム、銅、水銀、砒素等のような水中の重金属イオンの痕跡レベルを検出するための電気化学検出装置が与えられる。電気化学検出装置は例えば剥離ボルタンメトリーのような解析技術を使用できる。
Claims (20)
- 金属錯体を含んでいるサンプル液体を感知電極を横切って流しながら前記感知電極に電流を供給し、
前記供給された電圧に応答して、前記金属錯体に関連する電流信号は周期的に測定し、
前記周期的に測定された電流信号を処理して前記金属錯体に関連される2以上の金属イオンの存在を同時に検出するステップを含んでいる方法。 - 前記電圧の供給は累積電位とそれに後続する走査電位を供給するステップを含む請求項1記載の方法。
- 走査電位の供給は25ミリボルトの振幅、4ミリボルト(mV)のステップ電位、25ヘルツの周波数の少なくとも1つを有する走査電位の供給を含む請求項2記載の方法。
- 前記電圧の供給は、
前記サンプル液体を前記感知電極を横切って流しながら、前記電圧を前記感知電極へ適用し、
前記サンプル液体を別の感知電極を横切って流しながら、前記電圧を前記別の感知電極へ適用するステップを含んでいる請求項1記載の方法。 - 前記処理は、亜鉛(Zn)、鉛(Pb)、カドミウム(Cd)、銅(Cu)、水銀(Hg)、砒素(As)の2以上を含む2以上の金属イオンの存在を同時に検出するために前記周期的に測定される電流信号を処理するステップを含んでいる請求項1記載の方法。
- 前記電圧の供給は、ビスマス、金、炭素、水銀の少なくとも1つを含む前記感知電極へ前記電圧を供給するステップを含んでいる請求項1記載の方法。
- 前記電圧の供給は、スクリーン印刷電極で構成される前記感知電極に電圧を供給するステップを含んでいる請求項6記載の方法。
- 前記電流信号の測定は、ボルタンメトリー信号の測定を含んでいる請求項1記載の方法。
- 前記ボルタンメトリー信号の測定は、前記ボルタンメトリー信号を測定するために剥離電圧電流計を使用するステップを含んでいる請求項8記載の方法。
- 剥離電圧電流計を使用する前記ボルタンメトリー信号の測定は、前記ボルタンメトリー信号を測定するために使い捨ての剥離電圧電流計を使用するステップを含んでいる請求項9記載の方法。
- さらに、前記サンプル液体を容器を通して流す前に、前記サンプル液体をバッファにより事前処理するステップを含んでいる請求項1記載の方法。
- 検出装置とデータ処理装置を含んでいるシステムにおいて、
前記検出装置は、
1以上の金属錯体を含んでいるサンプル液体を少なくとも部分的に保持する容器と、
前記サンプル液体中に少なくとも部分的に浸漬される導電部材を含み、前記容器と、前記溶液と、前記導電部材とは各金属錯体に対応するボルタンメトリー信号を測定するように構成され、前記導電部材は、
電気的に直列接続されている2以上の感知電極と、
前記直列接続された感知電極に結合され前記感知電極間で共有されている基準電極とを具備し、
前記データ処理装置は、前記測定されたボルタンメトリー信号に基づいて前記金属錯体に関連される2以上の金属イオンを並列に識別するように構成されているシステム。 - 前記導電部材は、ビスマス、金、炭素又は水銀の少なくとも1つを含んでいる請求項12記載のシステム。
- 前記導電部材は、スクリーン印刷電極を含んでいる請求項12記載のシステム。
- 前記検出装置は、剥離電圧電流計として構成されている請求項12記載のシステム。
- 前記剥離電圧電流計は、使い捨ての剥離電圧電流計を具備している請求項15記載のシステム。
- 前記検出装置は、累積電位とそれに後続する走査電位を供給することによりボルタンメトリー信号を測定するように構成されている請求項12記載のシステム。
- さらに、前記サンプル液体が前記検出器装置を流れることを可能にするために前記容器に接続されたサンプルの入口とサンプルの出口を具備している請求項12記載のシステム。
- 前記容器は、前記サンプル液体が前記容器中を通って前記導電部材を横切って流れることを可能にする流路を形成するように形成されており、
前記データ処理装置は、前記サンプル液体が前記導電部材を横切って流れている間に前記ボルタンメトリー信号を周期的に測定するように構成されている請求項12記載のシステム。 - 前記容器は、前記サンプル液体が前記容器を通って前記感知電極の1つを横切って流れることを可能にし、別のサンプル液体が前記容器を通って別の感知電極を横切って流れることを可能にする2以上のチャンネルを形成するように成形されており、
前記データ処理装置は、前記サンプル液体が前記感知電極の1つを横切って流れ、前記他のサンプル液体が前記他の感知電極を横切って流れるとき前記ボルタンメトリー信号を周期的に測定するように構成されている請求項12記載のシステム。
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PCT/US2008/059467 WO2009123645A1 (en) | 2008-04-04 | 2008-04-04 | Simultaneous electrochemical detection of multiple heavy metal ions in liquid |
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JP5215390B2 (ja) | 2007-06-29 | 2013-06-19 | アリゾナ・ボード・オブ・リージェンツ・フォー・アンド・オン・ビハーフ・オブ・アリゾナ・ステイト・ユニバーシティー | シリカ種の電気化学検出 |
FR2965620B1 (fr) | 2010-10-04 | 2012-10-26 | St Microelectronics Rousset | Procede et dispositif de detection de metaux dans un fluide |
CN102621215A (zh) * | 2012-03-16 | 2012-08-01 | 湖南师范大学 | 一种双通道阳极溶出伏安法 |
US9028662B2 (en) | 2012-07-10 | 2015-05-12 | Hewlett-Packard Development Company, L.P. | Electrochemical sensing arrays |
WO2014165659A2 (en) * | 2013-04-03 | 2014-10-09 | University Of Massachusetts | An electrochemical tongue |
ES2549676B1 (es) * | 2014-04-30 | 2016-08-08 | Universitat De Barcelona | Celda electroquímica de flujo para electrodos |
JP6861610B2 (ja) * | 2017-11-07 | 2021-04-21 | 株式会社荏原製作所 | めっき解析方法、めっき解析システム、及びめっき解析のためのコンピュータプログラム |
US11592373B2 (en) | 2018-11-30 | 2023-02-28 | Board Of Trustees Of Michigan State University | Electrochemical methods for sample pretreatment for metals determination and related apparatus |
CN109632888A (zh) * | 2018-12-27 | 2019-04-16 | 广州安食通信息科技有限公司 | 一种食品重金属检测仪及食品重金属检测方法 |
CN110133064B (zh) * | 2019-04-23 | 2020-03-17 | 浙江大学 | 一种便携式痕量重金属与pH联合快速检测仪及其方法 |
US11162933B2 (en) * | 2019-09-11 | 2021-11-02 | Haier Us Appliance Solutions, Inc. | System and method for detecting heavy metals in a fluid |
CN111426730A (zh) * | 2020-05-18 | 2020-07-17 | 金陵海关技术中心 | 薄层微区流动富集系统的重金属快速测定方法 |
US20210395910A1 (en) * | 2020-06-23 | 2021-12-23 | Unm Rainforest Innovations | Ion exchange membrane separated two electrode flow analyzer for continuous aqueous electrochemical heavy metal detection |
CN112415063A (zh) * | 2020-12-02 | 2021-02-26 | 武汉市农业科学院 | 一种重金属检测仪 |
CN117538393B (zh) * | 2023-12-21 | 2024-06-21 | 北京欧仕科技有限公司 | 水中重金属自动检测器 |
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- 2008-04-04 EP EP08745156.3A patent/EP2263079B1/en active Active
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- 2008-04-04 US US12/936,294 patent/US20110284395A1/en not_active Abandoned
- 2008-04-04 CN CN200880129263.5A patent/CN102037350B/zh active Active
- 2008-04-04 JP JP2011502923A patent/JP2011516856A/ja active Pending
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Also Published As
Publication number | Publication date |
---|---|
EP2263079B1 (en) | 2020-01-08 |
WO2009123645A1 (en) | 2009-10-08 |
CN102037350A (zh) | 2011-04-27 |
CN102037350B (zh) | 2015-08-12 |
US20110284395A1 (en) | 2011-11-24 |
EP2263079A1 (en) | 2010-12-22 |
EP2263079A4 (en) | 2015-04-01 |
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