| Project/Area Number |
05640681
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| Research Category |
Grant-in-Aid for General Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Research Field |
分離・精製・検出法
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| Research Institution | SHIGA UNIVERSITY |
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Principal Investigator |
HARA Hirokazu SHIGA UNIV.DEPT.CHEM., ASSOCIATE PROFESSOR, 教育学部, 助教授 (50142287)
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| Project Period (FY) |
1993 – 1994
|
| Project Status |
Completed (Fiscal Year 1994)
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| Budget Amount *help |
¥1,900,000 (Direct Cost: ¥1,900,000)
Fiscal Year 1994: ¥700,000 (Direct Cost: ¥700,000)
Fiscal Year 1993: ¥1,200,000 (Direct Cost: ¥1,200,000)
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| Keywords | FLOW ANALYSIS / ION-SELECTIVE ELECTRODE / CHLORIDE / pH ISFET / RESPONSE TIME / HIGH-SPEED ANALYSIS / POTENTIOMETRY / NITRATE / ISFET |
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| Research Abstract |
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)
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