KR940007529A - Hydrogen ion selective electrode, preparation method thereof, and hydrogen ion concentration measurement method using the same - Google Patents

Hydrogen ion selective electrode, preparation method thereof, and hydrogen ion concentration measurement method using the same Download PDF

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KR940007529A
KR940007529A KR1019920016827A KR920016827A KR940007529A KR 940007529 A KR940007529 A KR 940007529A KR 1019920016827 A KR1019920016827 A KR 1019920016827A KR 920016827 A KR920016827 A KR 920016827A KR 940007529 A KR940007529 A KR 940007529A
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electrode
hydrogen ion
ion selective
hydrogen
ion concentration
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KR1019920016827A
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Korean (ko)
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강성철
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김광호
삼성전자 주식회사
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Abstract

본 발명은 수소이온 선택성 전극, 이의 제조방법 및 이를 이용한 수소이온 농도 측정 방법에 관한 것으로서, 본 발명에서는 전극 및 상기 전극상에 형성된 수소이온 선택성 전도성 고분자막으로 구성된 수소이온 선택성 전극과, 질산 용액에 수소이온 선택성 전도성 고분자의 모노머를 용해시킨후 금속전극 또는 탄소전극을 상기 모노머가 용해된 질산 용액에 담근후 순환 전류-전압법에 의해 상기 금속 전극 또는 탄소 전극의 표면상에 수소이온 선택성 전도성 고분자막을 형성시키는 것을 특징으로 하는 수소이온 선택성 전극의 제조방법과, 지시전극으로서, 전도성 금속 전극 및 상기 금속상에 형성된 수소이온 선택성 고분자막으로 구성된 수소이온 선택성 전극을 사용하고, 기준 전극으로서, 은/염화은 또는 포하 칼로멜 전그을 사용하며 양 전극간의 전위차를 측정하여 용액중의 수소이온 농도를 측정함을 특징으로 하는 수소이온 농도 측정방법을 제공한다.The present invention relates to a hydrogen ion selective electrode, a method for preparing the same, and a method for measuring hydrogen ion concentration using the same, in the present invention, a hydrogen ion selective electrode composed of an electrode and a hydrogen ion selective conductive polymer film formed on the electrode, and hydrogen in a nitric acid solution. After dissolving the monomer of the ion-selective conductive polymer, the metal electrode or carbon electrode is dipped in the nitric acid solution in which the monomer is dissolved, and then a hydrogen ion-selective conductive polymer film is formed on the surface of the metal electrode or carbon electrode by cyclic current-voltage method. And a hydrogen ion selective electrode composed of a conductive metal electrode and a hydrogen ion selective polymer film formed on the metal, as a reference electrode, and a silver / silver chloride or phosphorus as a reference electrode. Between the electrodes Provide a pH measurement method to measure a potential difference, characterized in that the measurement of the pH value in the solution.

Description

수소이온 선택성 전극, 이의 제조방법 및 이를 이용한 수소이온 농도 측정방법Hydrogen ion selective electrode, preparation method thereof, and hydrogen ion concentration measurement method using the same

본 내용은 요부공개 건이므로 전문내용을 수록하지 않았음Since this is an open matter, no full text was included.

제1도는 본 발명의 수소이온 선택성 전극 제조용 전극 제조용 전기 화학 장치의 개략도이고,1 is a schematic diagram of an electrochemical device for producing electrodes for producing hydrogen ion selective electrodes of the present invention,

제2도는 폴리피롤막의 제조시 순환 전류-전압 곡선(cyclic voltammogram)을 나타내는 그래프이고,2 is a graph showing a cyclic voltammogram of polypyrrole film in the production of

제3도는 본 발명의 수소이온 농도 측정장치의 개략도이고,3 is a schematic view of the hydrogen ion concentration measuring apparatus of the present invention,

제4도는 수소이온 농도의 검정선을 나타내고,4 shows a calibration line of hydrogen ion concentration,

제5도는 폴리피롤막 전극을 사용한 산-염기 적정 곡선을 나타내는 그래프이다.5 is a graph showing an acid-base titration curve using a polypyrrole film electrode.

Claims (13)

전극 및 상기 전극상에 형성된 수소이온 선택성 전도성 고분자막으로 구성된 수소이온 선택성 전극.A hydrogen ion selective electrode composed of an electrode and a hydrogen ion selective conductive polymer film formed on the electrode. 제1항에 있어서 상기 전극이 백금 또는 탄소 전극인 것을 특징으로 하는 수소이온 선택성 전극.The hydrogen ion selective electrode of claim 1, wherein the electrode is a platinum or carbon electrode. 제1항에 있어서, 상기 전도성 고분자막이 폴리피롤막(polypyrrole membrane)인 것을 특징으로 하는 수소이온 선택성 전극.The hydrogen ion selective electrode of claim 1, wherein the conductive polymer membrane is a polypyrrole membrane. 제3항에 있어서, 상기 폴리피롤막의 두께가 0.1내지 1μ인 것을 특징으로 하는 수소이온 선택성 전극.4. The hydrogen ion selective electrode according to claim 3, wherein the polypyrrole film has a thickness of 0.1 to 1 mu. 질산 용액에 수소이온 선택성 전도성 고분자의 모노머를 용해시킨후 금속 전극 또는 탄소전극을 상기 모노머가 용해된 질산 용액에 담근후 순환 전류-전압법(cyclic voltammetry)에 의해 상기 금속 전극 또는 탄소 전극의 표면상에 수소이온 선택성 전도성 고분자막을 형성시키는 것을 특징으로 하는 수소이온 선택성 전극의 제조방법.After dissolving the monomer of the hydrogen-ion selective conductive polymer in the nitric acid solution, the metal electrode or carbon electrode is dipped in the nitric acid solution in which the monomer is dissolved, and then cyclic voltammetry on the surface of the metal electrode or carbon electrode. A method for producing a hydrogen ion selective electrode, characterized in that to form a hydrogen ion selective conductive polymer film. 제5항에 있어서, 상기 순환 전류-전압법에서의 산화-환원의 순환범위가 -0.2내지 +0.8V임을 특징으로하는 수소이온 선택성 전극의 제조방법.The method of manufacturing a hydrogen ion selective electrode according to claim 5, wherein the oxidation-reduction cycle range in the cyclic current-voltage method is -0.2 to + 0.8V. 제6항에 있어서, 상기 순환 전환 속도가 50내지 100mV/sec임을 특징으로 하는 수소이온 선택성 전극의 제조방법.7. The method of claim 6, wherein the circulation conversion rate is 50 to 100 mV / sec. 지시전극으로서, 전도성 금속 전극 및 상기 금속상에 형성된 수소이온 선택성 고분자막으로 구성된 수소이온 선택성 전극을 사용하고, 기준 전극으로서, 은/염화은 또는 포화 칼로멜 전극을 사용하며, 양 전극간의 전위차를 측정하여 용액중의 수소이온 농도를 측정함을 특징으로 하는 수소이온 농도 측정방법.As an indicator electrode, a hydrogen ion selective electrode composed of a conductive metal electrode and a hydrogen ion selective polymer film formed on the metal is used, and as a reference electrode, a silver / silver chloride or saturated calomel electrode is used, and a potential difference between the two electrodes is measured. Hydrogen ion concentration measurement method characterized by measuring the concentration of hydrogen ions in. 제8항에 있어서, 상기 수소이온 농도를 측정하기 전에 수소이온 농도의 검정선을 구함을 특징으로 하는 수소이온 농도 측정 방법.The method for measuring hydrogen ion concentration according to claim 8, wherein a calibration line of hydrogen ion concentration is obtained before measuring the hydrogen ion concentration. 제9항에 있어서, H3PO4, KH2PO4, K2HPO4, K3PO4등의 인산염 완충용액의 이온세기를 0.1M로 유지하면서 수소이온 농도를 1.0×10-2M내지 1.0×10-12M가지 변화시키면서 전위차를 측정하여 상기 검정선을 구함을 특징으로 하는 수소이온 농도 측정 방법.The hydrogen ion concentration of claim 9, wherein the ionic strength of the phosphate buffer solution such as H 3 PO 4 , KH 2 PO 4 , K 2 HPO 4 , K 3 PO 4 is maintained at 0.1 M to 1.0 × 10 −2 M A method for measuring hydrogen ion concentration, characterized in that to obtain the calibration line by measuring the potential difference while changing 1.0 × 10 −12 M kinds. 제8항에 있어서, 상기 수소이온 농도의 측정범위가 1.0×10-2M내지 1.0×10-12M임을 특징으로 하는 수소이온 농도 측정 방법.The method of claim 8, wherein the measurement range of the hydrogen ion concentration is 1.0 × 10 -2 M to 1.0 × 10 -12 M. 제8항에 있어서, 상기 수소이온 농도를 측정하기 전에 상기 수소이온 선택성 전극을 1.0M 질산용액에 담근후, 순환 전류-전압법에 의해 상기 전극을 활성화함을 특징으로 하는 수소이온 농도 측정 방법.The method of claim 8, wherein the electrode is immersed in 1.0 M nitric acid solution before the measurement of the concentration of hydrogen ions, and then the electrode is activated by a cyclic current-voltage method. 제12항에 있어서, 상기 1.0M 질산용액에 상기 수소이온 선택성 전극을 담근후, +0.7V의 정전압을 가해주면서, 그 때 흐르는 전류가 초기 전류의 1/1000이 될 때까지 산화시켜 전극을 활성화함을 특징으로 하는 수소이온 농도 측정 방법.The electrode according to claim 12, wherein the hydrogen ion selective electrode is immersed in the 1.0 M nitric acid solution, and a positive voltage of +0.7 V is applied thereto, thereby oxidizing the current until the current flows to 1 / 1000th of the initial current. Hydrogen ion concentration measurement method characterized in that. ※ 참고사항 : 최초출원 내용에 의하여 공개하는 것임.※ Note: The disclosure is based on the initial application.
KR1019920016827A 1992-09-16 1992-09-16 Hydrogen ion selective electrode, preparation method thereof, and hydrogen ion concentration measurement method using the same KR940007529A (en)

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Cited By (5)

* Cited by examiner, † Cited by third party
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KR100475303B1 (en) * 2001-03-15 2005-03-10 주식회사 코리아센텍 PVC-silicon Rubber based solid state pH sensor
KR100657965B1 (en) * 2005-08-10 2006-12-14 삼성전자주식회사 A microfluidic device for electrochemically regulating the ph of a fluid therein and method for regulating the ph of a fluid in a microfuidic device using the same
KR100890364B1 (en) * 2007-03-21 2009-03-25 한국과학기술연구원 Apparatus for analyzing tin compounds in liquid samples and method for analyzing tin levels using the same
KR20200068968A (en) * 2018-12-06 2020-06-16 강원대학교산학협력단 FLEXIBLE pH SENSOR CABLE AND METHOD FOR MANUFACTURING THEREOF
KR20220003285A (en) * 2020-07-01 2022-01-10 경기대학교 산학협력단 Composition for pH sensing ink, fabricating method of the same and pH sensor using the same

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100475303B1 (en) * 2001-03-15 2005-03-10 주식회사 코리아센텍 PVC-silicon Rubber based solid state pH sensor
KR100657965B1 (en) * 2005-08-10 2006-12-14 삼성전자주식회사 A microfluidic device for electrochemically regulating the ph of a fluid therein and method for regulating the ph of a fluid in a microfuidic device using the same
KR100890364B1 (en) * 2007-03-21 2009-03-25 한국과학기술연구원 Apparatus for analyzing tin compounds in liquid samples and method for analyzing tin levels using the same
US8070935B2 (en) 2007-03-21 2011-12-06 Korea Institute Of Science And Technology Apparatus for analyzing tin compounds in liquid samples and method for analyzing tin levels using the same
KR20200068968A (en) * 2018-12-06 2020-06-16 강원대학교산학협력단 FLEXIBLE pH SENSOR CABLE AND METHOD FOR MANUFACTURING THEREOF
KR20220003285A (en) * 2020-07-01 2022-01-10 경기대학교 산학협력단 Composition for pH sensing ink, fabricating method of the same and pH sensor using the same

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