CN104764771A - 电势差离子浓度测量法 - Google Patents

电势差离子浓度测量法 Download PDF

Info

Publication number
CN104764771A
CN104764771A CN201410005156.9A CN201410005156A CN104764771A CN 104764771 A CN104764771 A CN 104764771A CN 201410005156 A CN201410005156 A CN 201410005156A CN 104764771 A CN104764771 A CN 104764771A
Authority
CN
China
Prior art keywords
ion concentration
electrode
measurement method
potential difference
solution
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
Application number
CN201410005156.9A
Other languages
English (en)
Inventor
韩雨
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Individual filed Critical Individual
Priority to CN201410005156.9A priority Critical patent/CN104764771A/zh
Publication of CN104764771A publication Critical patent/CN104764771A/zh
Pending legal-status Critical Current

Links

Landscapes

  • Investigating Or Analysing Biological Materials (AREA)

Abstract

技术领域：临床医学临床上对于患者血液的离子浓度测定通常采用抽血化验法，该方法耗时长，对于急症患者耽误时间，对于长期进行抽血化验的患者容易导致贫血。电势差离子浓度测量法的测定原理为当血液(或溶液)中离子浓度变化时，复合电极所输出的电动势也随着发生变化，根据电势变化计算出离子浓度。电势差离子浓度测量法是利用复合电极对被测溶液中离子浓度产生不同的电势差，以达到离子浓度测量的目的，最后由数字显示离子浓度值。

Description

电势差离子浓度测量法
技术领域：临床医学
背景技术：临床上对于患者血液的离子浓度测定通常采用抽血化验法，该方法耗时长，对于急症患者耽误时间，对于长期进行抽血化验的患者容易导致贫血。
发明内容：电势差离子浓度测量法的测定原理为当血液(或溶液)中离子浓度变化时，复合电极所输出的电动势也随着发生变化，根据电势变化计算出离子浓度。电势差离子浓度测量法是利用复合电极对被测溶液中离子浓度产生不同的电势差，以达到离子浓度测量的目的，最后由数字显示离子浓度值。
具体实施方式：
电势差离子浓度测量法是用来测量溶液离子浓度的方法。
电势差离子浓度测量法是电势测定法。它可以测量溶液的离子浓度。电势差离子浓度测量器主要由参比电极，指示电极(玻璃电极)和精密电位计三部分组成。
由于参比电极的电极电位不随溶液离子浓度变化，在一定温度下是一定值，而指示电极的电极电位随溶液离子浓度的变化而改变，所以它们组成的电池电动势也只随溶液的离子浓度而变化。
指示电极有特制的球膜结构，对要测的离子有选择性。将它***待测溶液.其电极电位φG与溶液的离子浓度有下列关系
φG＝φ0 G-2.303RT÷F×(-lg【离子浓度】)
式中φ0 G为玻璃电极标准电位。R为气体常数，T为开尔文温标，F为法拉第常数，-lg【离子浓度】为以10为底的离子浓度的负对数。一定温度下参比电极的电位中φ0 G也为一定值。将指示电极和参比电极***溶液组成原电池.电池的电动势为：
E＝φs-φG＝φs-φ0 G+2.303RT÷F×(-lg【离子浓度】)
式中φs为指示电极电位。由上式可知，E与-lg【离子浓度】呈线性关系。只要测得E便可求得-lg【离子浓度】，即可求得离子浓度。

Claims (2)

1.临床上对于患者血液的离子浓度测定通常采用抽血化验法，该方法耗时长，对于急症患者耽误时间。电势差离子浓度测量法的测定原理为当血液(或溶液)中离子浓度变化时，复合电极所输出的电动势也随着发生变化，根据电势变化计算出离子浓度。电势差离子浓度测量法是利用复合电极对被测溶液中离子浓度产生不同的电势差，以达到离子浓度测量的目的，最后由数字显示离子浓度值。
2.如权利要求书所述的电势差离子浓度测量法的技术特征为(1)电势差离子浓度测量法的测定原理为当血液(或溶液)中离子浓度变化时，复合电极所输出的电动势也随着发生变化，根据电势变化计算出离子浓度。电势差离子浓度测量法是利用复合电极对被测溶液中离子浓度产生不同的电势差，以达到离子浓度测量的目的。(2)指示电极有特制的球膜结构，对要测的离子有选择性。将它***待测溶液.其电极电位φG与溶液的离子浓度有下列关系：
φG＝φ0 G-2.303RT÷F×(-lg【离子浓度】)
式中φ0 G为玻璃电极标准电位。R为气体常数，T为开尔文温标，F为法拉第常数，-lg【离子浓度】为以10为底的离子浓度的负对数。一定温度下参比电极的电位中φ0 G也为一定值。将指示电极和参比电极***溶液组成原电池.电池的电动势为：
E＝φS-φG＝φs-φ0 G+2.303RT÷F×(-lg【离子浓度】)
式中φs为指示电极电位。由上式可知，E与-lg【离子浓度】呈线性关系。只要测得E便可求得-lg【离子浓度】，即可求得离子浓度。
CN201410005156.9A 2014-01-02 2014-01-02 电势差离子浓度测量法 Pending CN104764771A (zh)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201410005156.9A CN104764771A (zh) 2014-01-02 2014-01-02 电势差离子浓度测量法

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201410005156.9A CN104764771A (zh) 2014-01-02 2014-01-02 电势差离子浓度测量法

Publications (1)

Publication Number Publication Date
CN104764771A true CN104764771A (zh) 2015-07-08

Family

ID=53646735

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201410005156.9A Pending CN104764771A (zh) 2014-01-02 2014-01-02 电势差离子浓度测量法

Country Status (1)

Country Link
CN (1) CN104764771A (zh)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020094082A1 (zh) * 2018-11-08 2020-05-14 利多(香港)有限公司 电势型生物传感器和检测方法

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103257174A (zh) * 2012-02-16 2013-08-21 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 记录被测介质中的被分析物浓度的测量组件及方法
CN103376285A (zh) * 2012-04-17 2013-10-30 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 电位传感器设备

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103257174A (zh) * 2012-02-16 2013-08-21 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 记录被测介质中的被分析物浓度的测量组件及方法
CN103376285A (zh) * 2012-04-17 2013-10-30 恩德莱斯和豪瑟尔测量及调节技术分析仪表两合公司 电位传感器设备

Non-Patent Citations (4)

* Cited by examiner, † Cited by third party
Title
周激 等: "在酸性介质中用氟电极测定氟离子的新方法", 《分析试验室》 *
周锦帆 等: "pH测量原理及注意事项", 《检验检疫科学》 *
孙毓庆 等: "《分析化学(下册)第3版》", 30 June 2011 *
林玉池 等: "《现代传感技术与***》", 31 July 2009 *

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2020094082A1 (zh) * 2018-11-08 2020-05-14 利多(香港)有限公司 电势型生物传感器和检测方法

Similar Documents

Publication Publication Date Title
EA201290573A1 (ru) Устройство измерения качества
BR112012024945A2 (pt) sistema e método de medição eletroquímica de analitos
BRPI1005655A2 (pt) Sistemas, dispositivos e métodos para medição do hematócrito de sangue integral com base na velocidade de preenchimento inicial
EP4223217A3 (en) Vital signs monitoring system
BR112015022527A2 (pt) dispositivo de colheita e medição, método para realizar uma medição de corrente por demanda, método para realizar uma medição de alta corrente e dispositivo de colheita e medição
TW200745543A (en) System and methods for providing corrected analyte concentration measurements
BR112014008539A2 (pt) método para testar um sistema, sistema para detectar pelo menos um gás analito e método para testar pelo menos um caminho de transporte em um sistema
BR112014007726A2 (pt) medidor de teste manual com circuito de medição de hematócrito com base em deslocamento de fase
MX355854B (es) Sistema y metodo para detectar sensores utilizados y secados.
BR112013007156A2 (pt) sistemas e métodos para estabilidade aperfeiçoada de sensores eletroquímicos
BR112014026997A2 (pt) técnica e sistema aprimorados de medição de analito
EP3004856A1 (en) Hydrogen sulfide gas detector with humidity and temperature compensation
CN104764771A (zh) 电势差离子浓度测量法
US10321861B2 (en) Calibrated pH sensor
CN102288933B (zh) 一种用于低于10us/cm的溶液电导率测量的校准方法
IN2012DN05912A (zh)
CN206725489U (zh) 双恒流源热导检测***
KR20120068430A (ko) 생체로부터 추출된 혈액의 이온 및 점도상태 측정장치
GB201107669D0 (en) Electrochemical sensor
TWI481869B (zh) 血球容積比測量方法、血糖濃度測量方法及使用前述方法的電化學量測裝置
CN100515363C (zh) 一种牙根管长度测定仪
JP2014130017A (ja) ガス検出装置
RU2525585C1 (ru) Способ определения коэффициента трения покоя поверхностного слоя электропроводящего материала
GB201013451D0 (en) Improvements in or relating to gas specific gravity sensing
Bose Impedimetry Based Urea Sensing Device

Legal Events

Date Code Title Description
C06 Publication
PB01 Publication
EXSB Decision made by sipo to initiate substantive examination
SE01 Entry into force of request for substantive examination
RJ01 Rejection of invention patent application after publication
RJ01 Rejection of invention patent application after publication

Application publication date: 20150708