DEVELOPMENT OF HIGH-SPEED POTENTIOMETRIC ANALYZER BASED ON THE DYNAMIC RESPONSE OF THE ION SENSOR

基于离子传感器动态响应的高速电位分析仪的研制

• 批准号: 05640681
• 负责人: HARA Hirokazu
• 金额: $ 1.22万
• 依托单位: SHIGA UNIVERSITY
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for General Scientific Research (C)
• 财政年份: 1993
• 资助国家: 日本
• 起止时间: 1993 至 1994
• 项目状态: 已结题
• 来源: https://kaken.nii.ac.jp/en/grant/KAKENHI-PROJECT-05640681/
• 关键词: FLOW ANALYSIS; ION-SELECTIVE ELECTRODE; CHLORIDE; pH ISFET; RESPONSE TIME; HIGH-SPEED ANALYSIS; POTENTIOMETRY; NITRATE; ISFET

THE HIGH-SPEED POTENTIOMETRIC ANALYSIS SYSTEM EQUIPPED WITH A CHLORIDE ION-SELECTIVE ELECTRODE DETECTOR (NAMED AS HIGH SPEED POTENTIOMETRIC ANALYZER : HSPA) WAS DEVELOPED FIRST,WHICH ENABLED DETERMINATION AS QUICK AS 1.2-1.3S PER SAMPLE.THIS SYSTEM WAS THEN IMPROVED BY REPLACING THE ROLLER PUMP WITH AN ASPIRATOR TOGETHER WITH A SUCTION-TYPE FLOW CELL.THE ANALYSIS TIME WAS SHORTENED TO WITHIN IS.THE NITRATE ION-SENSITIVE FIELD EFFECT TRANSISTOR WAS DEVELOPED.THE SURFACE OF THE ISFET WAS COVERED WITH AN ACTIVE MATERIAL BASED ON BATHO-CUPROIN COPPER (I) NITRATE DISSOLVED IN SOLID SOLVENT.THE DYNAMIC RESPONSE CHARACTERISTICS OF pH-ISFET WAS ALSO INVESTIGATED.THE 95% RESPONSE TIME WHEN THE STEP CHANGE OF pH WAS OCCURRED WAS 0.25-0.3 S,WHICH WAS MUCH SLOWER THAN THE VALUES (WITHIN 10 ms)

用氯离子选择电极检测器改装的快速电位分析系统（命名为高速电位分析仪：HSPA）是第一个推出的，该系统的改进是用吸引式流动池代替了传统的辊式采样器，缩短了分析时间，使硝酸根离子的测定时间缩短到1.2-1.3S/个样品。研制了灵敏场效应晶体管（ISFET），用溶于固体溶剂的硝酸亚铜基活性物质覆盖ISFET的表面，测定了pH ISFET的动态响应特性，pH阶跃变化时的95%响应时间为0.25- 0.3S，比数值慢得多（10 ms内）

项目成果

Hara H.: "High speed potentiometric analyzer equipped with an ion‐selective electrode detector" Analytica Chimica Acta. 281. 45-51 (1993)

Hara H.：“配备离子选择电极检测器的高速电位分析仪”Analytica Chimica Acta. 281. 45-51 (1993)

HARA,H., TAKAHASHI,K., OHKUBO,H.: "NITRATE ION-SENSITIVE FIELD EFFECT TRANSISTOR BASED ON BIS (BATHO CUPROIN-COPPER (I) NITRATE DISSOLVED IN SOLVENTS." ANALYTICA CHIMICA ACTA. 290. 329-333 (1993)

HARA,H.、TAKAHASHI,K.、OHKUBO,H.：“基于溶解在溶剂中的 BATHO 铜-铜 (I) 硝酸盐的硝酸盐离子敏感场效应晶体管。”《分析化学学报》. 290. 329-333 (

Hara H.: "Nitrate ion‐sensitive field effect transistor based on biscbatho cuproin‐Copper(1)nitrate dissolved in solid solvents" Analytica Chimica Acta. 290. 329-333 (1994)

Hara H.：“基于溶解在固体溶剂中的双铜铜(1)硝酸盐的硝酸盐离子敏感场效应晶体管”《分析化学学报》290. 329-333 (1994)

Hara H.: "High speed potentiometric AnalyzerII using a Suction type Flow‐cell and an Ion‐selective Electrode Detector" 滋賀大学教育学部紀要 自然科学・教育科学. 44. 31-38 (1994)

Hara H.：“使用抽吸式流通池和离子选择电极检测器的高速电位分析仪II”滋贺大学教育学院公告，自然科学和教育科学44. 31-38 (1994)。

Hara H.et al: "High speed potentiometric analyzer equipped with an ion-selective electrode detector" Analytica Chimica Acta. 281. 45-51 (1993)

Hara H.等人：“配备离子选择电极检测器的高速电位分析仪”Analytica Chimica Acta。