JP7094303B2 - 電位差イオン選択性電極用のカーボンペースト含有内部電解質層 - Google Patents
電位差イオン選択性電極用のカーボンペースト含有内部電解質層 Download PDFInfo
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- 239000003792 electrolyte Substances 0.000 title claims description 59
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 title claims description 30
- 229910052799 carbon Inorganic materials 0.000 title claims description 30
- 239000011777 magnesium Substances 0.000 claims description 93
- 238000001514 detection method Methods 0.000 claims description 70
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- 229910052749 magnesium Inorganic materials 0.000 claims description 51
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- FYYHWMGAXLPEAU-UHFFFAOYSA-N Magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 claims description 38
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- JLVVSXFLKOJNIY-UHFFFAOYSA-N Magnesium ion Chemical compound [Mg+2] JLVVSXFLKOJNIY-UHFFFAOYSA-N 0.000 claims description 25
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- KTBRGUBCCOJFFI-UHFFFAOYSA-N 1-[12-(4-ethylphenyl)dodecoxy]-2-nitrobenzene Chemical compound C1=CC(CC)=CC=C1CCCCCCCCCCCCOC1=CC=CC=C1[N+]([O-])=O KTBRGUBCCOJFFI-UHFFFAOYSA-N 0.000 claims description 3
- DBSSKVANIRDWJE-UHFFFAOYSA-N B(O)(O)O.FC(C=1C=C(C=C(C1)C(F)(F)F)[K])(F)F Chemical compound B(O)(O)O.FC(C=1C=C(C=C(C1)C(F)(F)F)[K])(F)F DBSSKVANIRDWJE-UHFFFAOYSA-N 0.000 claims description 3
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- JZLNMCGKKHXZMI-UHFFFAOYSA-N B(O)(O)O.FC(C=1C=C(C=C(C1)C(F)(F)F)[Na])(F)F Chemical compound B(O)(O)O.FC(C=1C=C(C=C(C1)C(F)(F)F)[Na])(F)F JZLNMCGKKHXZMI-UHFFFAOYSA-N 0.000 claims description 2
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- WUUHFRRPHJEEKV-UHFFFAOYSA-N tripotassium borate Chemical compound [K+].[K+].[K+].[O-]B([O-])[O-] WUUHFRRPHJEEKV-UHFFFAOYSA-N 0.000 claims 1
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- 239000011591 potassium Substances 0.000 description 6
- 229910052700 potassium Inorganic materials 0.000 description 6
- 229910052708 sodium Inorganic materials 0.000 description 6
- ZAMOUSCENKQFHK-UHFFFAOYSA-N Chlorine atom Chemical compound [Cl] ZAMOUSCENKQFHK-UHFFFAOYSA-N 0.000 description 5
- VEXZGXHMUGYJMC-UHFFFAOYSA-N Hydrochloric acid Chemical compound Cl VEXZGXHMUGYJMC-UHFFFAOYSA-N 0.000 description 5
- WCUXLLCKKVVCTQ-UHFFFAOYSA-M Potassium chloride Chemical compound [Cl-].[K+] WCUXLLCKKVVCTQ-UHFFFAOYSA-M 0.000 description 5
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- 239000012491 analyte Substances 0.000 description 4
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- 230000000694 effects Effects 0.000 description 4
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- SCJNXSCHPUAAGK-UHFFFAOYSA-N B(O)(O)O.ClC1=CC=C(C=C1)[K] Chemical compound B(O)(O)O.ClC1=CC=C(C=C1)[K] SCJNXSCHPUAAGK-UHFFFAOYSA-N 0.000 description 2
- BHPQYMZQTOCNFJ-UHFFFAOYSA-N Calcium cation Chemical compound [Ca+2] BHPQYMZQTOCNFJ-UHFFFAOYSA-N 0.000 description 2
- OFOBLEOULBTSOW-UHFFFAOYSA-N Malonic acid Chemical compound OC(=O)CC(O)=O OFOBLEOULBTSOW-UHFFFAOYSA-N 0.000 description 2
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- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/333—Ion-selective electrodes or membranes
- G01N27/3335—Ion-selective electrodes or membranes the membrane containing at least one organic component
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/28—Electrolytic cell components
- G01N27/30—Electrodes, e.g. test electrodes; Half-cells
- G01N27/333—Ion-selective electrodes or membranes
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
- G01N27/00—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means
- G01N27/26—Investigating or analysing materials by the use of electric, electrochemical, or magnetic means by investigating electrochemical variables; by using electrolysis or electrophoresis
- G01N27/416—Systems
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
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- H01M10/00—Secondary cells; Manufacture thereof
- H01M10/05—Accumulators with non-aqueous electrolyte
- H01M10/056—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes
- H01M10/0564—Accumulators with non-aqueous electrolyte characterised by the materials used as electrolytes, e.g. mixed inorganic/organic electrolytes the electrolyte being constituted of organic materials only
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Description
本出願は、2017年5月9日に出願された米国仮出願第62/503,588号の35 USC §119(e)に基づく利益を主張する。上記参照特許出願の全内容は、ここに参照により明示的に本明細書に組み込まれる。
該当せず。
テトラキス[3,5-ビス(トリフルオロメチル)フェニル]ホウ酸ナトリウム
イオン選択性電極を以下のように作製した。例で使用するために2タイプの内部電解質層を作製した。脱イオン水(DI H2O)中に10mMのMgCl2を含む従来技術の水性内部電解質層(Aq IE)を作製した。MgCl2(CP IE)をドープしたカーボンペーストを含む内部電解質層を、3つの処方で作製した。
i) CP1: 0.6MのMgCl2を0.005ml添加した5.02gのペースト;
ii) CP2: 0.6MのMgCl2を0.035ml添加した5.02gペースト;
iii)CP3: 0.6MのMgCl2を0.135mlスパイクした5.02gペースト。
3種類のCP IE処方は、全て、iMgセンサ応答に作用することが分かった。取り分け、CP-3は水溶液中で最も安定で最も速い応答を生じることが分かった。
3重量%のMgイオノフォアETH5506;
ETH 5506に対して75モル%のKTpClPB;
55重量%の可塑剤ETH217;
41重量%のPVC;及び
溶媒としてのテトラヒドロフラン(THF)
カバー膜をガラス板上のガラスリング(d=1.5インチ)内に流延し、その後、一晩硬化させた。
溶液系列1:DI H2O中のMgCl2:0.1、0.5、1.0、10mM;
溶液系列2:DI H2O中のCaCl2:0.1、0.5、1.0、10mM。
図2は、MgCl2及びCaCl2溶液系列(DI H2O)における従来技術の水性内部電解質層(Aq IE)と比較したカーボンペースト内部電解質層(CP IE)の未加工応答曲線を図示している。
幾つかの実施形態は、電位差イオン選択性電極のための内部電解質層に向けられている。内部電解質層は、カーボンペーストと該カーボンペースト中に分散した金属塩とから成り、内部電解質層は、内部参照電極及びイオン検知膜と結合して電位差イオン選択性電極を形成することができる。金属塩は、MgCl2、HCl、NaCl、KCl、KNO3又はNaClO4であり得る。
式IVにおいて、nは約6~約8の範囲である。
ここで、nは約100である。幾つかの実施形態では、流体生体試料は、血液、血漿、血清、尿、唾液、痰、脳脊髄液(CSF)、皮膚、腸液、腹腔内液、のう胞液、汗、間質液、細胞外液、涙液、粘液、膀胱洗浄液、精液、糞便、胸水、鼻咽頭液及びこれらの組合せを含む群から選択される。
以下の参考文献は、本明細書中に記載したものを補足する例示的な手順上又はその他の詳細を提供する範囲で、参照として明確に本明細書に組み入れられる。更に、以下は情報開示陳述書であることを意図したものではなく、むしろ37 CFR(米国特許規則) 1.97の規定に従った情報開示陳述書は別途提出される。
・Ursula E.Spichiger、Rudolf Eugster、E.Haase、G.Rumpf、Peter Gehrig、Angcla Schmid、Bruno Rusterholz及びWilhelm Simon.「ヒト血液血清への出願のためのマグネシウム選択性液膜電極の重要なパラメータと最適化」 Fresenius J Anal Chem (1991) 341:727-731.
・W.Zhang、L.Jenny、U.E.Spichiger.「溶媒高分子膜における中性Mg2+選択的イオノフォアの比較:複雑な化学量論と親油性」Analytical Sciences(2000)16:11-18
・Ursula E.Spichiger「マグネシウム選択性イオノフォア及びマグネシウム選択性電極の開発の歴史」Electro analysis(1993)5:739-745
・Wei Zhang「臨床アッセイにおける電位差センサの生理的に必要な選択性係数の研究」Life Science Journal(2005)2(1):40-45.
・Wei Zhang、K.Horan、U.Laura、国際特許出願公開第WO2010/021923号「マグネシウムイオン選択性電極を有するポリオキシアルキレン非イオン性界面活性剤の使用」2010年2月25日発行。
Claims (12)
- 電位差マグネシウムイオン選択性電極であって、
(a)内部参照電極;
(b)MgCl 2 が分散されたカーボンペーストを含む内部電解質層であって、該内部電解質層の少なくとも一部が前記内部参照電極の少なくとも一部と結合している内部電解質層;及び
(c)マグネシウムイオン検知膜であって、該マグネシウムイオン検知膜の少なくとも一部が、前記内部電解質層の少なくとも一部と結合している、マグネシウムイオン検知膜、
を含み、
前記マグネシウムイオン検知膜は、更に以下:
三分岐立体化学構造を有するイオノフォア;
親油性ホウ酸塩であって、前記イオノフォアに対する該親油性ホウ酸塩のモル比が60モル%~100モル%の範囲となる量で存在する親油性ホウ酸塩;及び
前記イオノフォア及び前記親油性ホウ酸塩が配置されたポリマーマトリックスであって、ポリマー及び可塑剤を含む、ポリマーマトリックス;
を含むものと定義され、
Ca 2+ に対するMg 2+ の選択係数K pot Mg,Ca (SSM)が、次の関係:Mg 2+ 濃度が0.5mM~10mMの範囲において、K pot Mg,Ca ≦0.02;を満たす、
電位差マグネシウムイオン選択性電極。 - 少なくとも以下:
(i)前記親油性ホウ酸塩が、テトラキス[3,5-ビス(トリフルオロメチル)フェニル]ホウ酸カリウム、テトラキス[3,5-ビス(トリフルオロメチル)フェニル]ホウ酸ナトリウム、及びテトラキス(4-クロロフェニル)ホウ酸カリウムからなる群から選択される;
(ii)前記可塑剤が、2-ニトロフェニルオクチルエーテル、2-ニトロフェニルドデシルエーテル、及び[12-(4-エチルフェニル)ドデシル]2-ニトロフェニルエーテルからなる群から選択される;
(iii)イオノフォアに対する親油性ホウ酸塩のモル比が80モル%である;および、
(iv)前記電極が、更に、固相の平面マグネシウム検知膜として定義される;
のうちの1つの条件を満たす、請求項1または2に記載の電位差マグネシウムイオン選択性電極。 - 前記内部参照電極が、金及び銀の少なくとも1つを含む、請求項1~3のいずれか1項に記載の電位差マグネシウムイオン選択性電極。
- 前記内部参照電極が、塩化銀層がその上に配置された銀ワイヤを含む、請求項4に記載の電位差イオン選択性電極。
- 少なくとも14日の使用寿命を有する多用途電位差マグネシウムイオン選択性電極として更に定義される、請求項1~5のいずれか1項に記載の電位差マグネシウムイオン選択性電極。
- 電位差マグネシウムイオン選択性電極を作製する方法であって、
・MgCl 2 溶液をカーボンペーストに分散させて内部電解質層を形成する工程;
・内部参照電極の少なくとも一部に前記内部電解質層の少なくとも一部をスクリーン印刷する工程;及び
・前記内部電解質層の少なくとも一部にマグネシウムイオン検知膜の少なくとも一部を配置する工程、を含み、
前記マグネシウムイオン検知膜は、以下:
三分岐立体化学構造を有するイオノフォア;
親油性ホウ酸塩であって、前記イオノフォアに対する該親油性ホウ酸塩のモル比が60モル%~100モル%の範囲となる量で存在する親油性ホウ酸塩;及び
前記イオノフォア及び前記親油性ホウ酸塩が配置されるポリマーマトリックスであって、ポリマー及び可塑剤を含むポリマーマトリックス;
を含むものと定義され、
Ca 2+ に対するMg 2+ の選択係数K pot Mg,Ca (SSM)が、次の関係:Mg 2+ 濃度が0.5mM~10mMの範囲において、K pot Mg,Ca ≦0.02;を満たす、方法。 - 流体生体試料中の標的イオン分析物の存在又は濃度を検出する方法であって、
請求項1~6のいずれか1項に記載の前記電位差マグネシウムイオン選択性電極を生体試料と接触させる工程、及び
前記電位差マグネシウムイオン選択性電極を用いて生体試料中のマグネシウムイオンのレベルを測定する工程、
を含む方法。 - 前記流体生体試料が、血液、血漿、血清、尿、唾液、痰、脳脊髄液(CSF)、皮膚、腸液、腹腔内液、のう胞液、汗、間質液、細胞外液、涙液、粘液、膀胱洗浄液、精液、便、胸水、鼻咽頭液及びこれらの組み合わせからなる群から選択される、請求項8に記載の方法。
- 前記電位差マグネシウムイオン選択性電極をポリ(エチレンオキシド)界面活性剤を含む試薬と接触させる工程を更に含む、請求項8または9に記載の方法。
- 複数の多用途センサを含む多用途センサアレイアセンブリであって、該複数の多用途センサのうちの少なくとも1つが、請求項1~6のいずれか1項に記載の前記電位差マグネシウムイオン選択性電極である、多用途センサアレイアセンブリ。
- 流体生体試料中の複数の標的分析物の存在又は濃度を検出する方法であって、
(a)請求項11に記載の前記多用途センサアレイアセンブリを有する、血液ガス機器、電解質機器、又は代謝物機器に流体生体試料を挿入する工程;及び
(b)前記アレイアセンブリの個々の多用途センサによって検出された複数の標的分析物の各々の存在又は濃度を測定する工程;
を含む方法。
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