ΜΕΤΡΗΣΗ ΧΑΡΑΚΤΗΡΙΣΤΙΚΩΝ ΠΟΙΟΤΗΤΑΣ ΕΚΛΕΚΤΙΚΩΝ ΗΛΕΚΤΡΟΔΙΩΝ ΙΟΝΤΩΝ ΚΑΙ ΚΙΝΗΤΙΚΕΣ ΑΝΑΛΥΣΕΙΣ ΜΕ ΔΙΑΤΑΞΕΙΣ ΕΛΕΓΧΟΜΕΝΕΣ ΑΠΟ ΜΙΚΡΟΥΠΟΛΟΓΙΣΤΗ

THE CONSTRUCTION OF TWO COMPUTERISED POTENTIOMETRIC SYSTEM IS DESCRIBED. THESE TWO SYSTEMS CONSIST OF COMMERCIALLY AVAILABLE UNITS AND HOMEBUILT INTERFACE CIRCUITS. THE FIRST SYSTEM, CONTROLLED BY AN ALTAIR 8800B MICROCOMPUTER IS USED FOR AN AUTOMATED, RAPID EVALUATION OF CERTAIN CRUSIAL QUALITY CHARACTERISTICS OF ION-SELECTIVE ELECTRODES. THE SECOND SYSTEM, CONTROLLED BY AN AMSTRAD CPC-6128 MICROCOMPUTER, IS USED EXCLUSIVELY FOR KINETIC STUDIES AND KINETIC ANALYSIS WITH ISES. AS FAR AS THE FIRST SYSTEM IS CONCERNED, CONTROL PROGRAMS WERE DEVELOPED, CAPABLE OF DOING THE FOLLOWING TASKS: EVALUATION OF DETECTION LIMITS AND POTENTIOMETRIC SELECTIVITY COEFFICIENTS TOWARDS DIVERSE IONS, AUTOMATIC RECORDING OF E-PH CURVES, DETERMINATION OF THE THERMAL HYSTERISIS OF ISES-REFERENCE ELECTRODE PAIRS, MONITORING OF ISES' POTENTIAL FOR EVALUATING MEDIUM-TERM DRIFT BEHAVIOUR AND ESTIMATION OF THE ISES' TIME CONSTANT, WHEN THEY ARE SUBJECTED TO A STEP-CHANGE OF THE ACTIVITY OF THE PRIMARY ION. THE POTENTIOMETRIC SYSTEM FOR KINETIC STUDIES/ANALYSIS WAS USED FOR: A) THE KINETIC CHARACTERISATION OF THE SYSTEM AL3+/F-/L(L=AMINOPOLYCARBONIC FROM ITS COMPLEXES WITH AL3+ BY THE DEMASKINGACTION OF L, WAS MONITORED BY A F- -ISE B) THE KINETIC DETERMINATION OF THE AMINOACID CARBOCYSTERINE BASED ON THE MICELLAR CATALYSIS OF ITS REACTION WITH 2,4-DINITROFLUOROBENZENE, THE REACTION BEING MONITORED BY A F--ISE.

Grantor dc:publisher

Εθνικό και Καποδιστριακό Πανεπιστήμιο Αθηνών (ΕΚΠΑ)

Year dc:date

1990

Author dc:creator

• Πεντάρη, Ιωάννα

• Ion selective elecrodes (ISEs)
• Kinetic analysis
• MICROCOMPUTERS
• QUALITY CHARACTERISTICS
• ΕΚΛΕΚΤΙΚΑ ΗΛΕΚΤΡΟΔΙΑ ΙΟΝΤΩΝ (ΕΗΙ)
• Κινητική ανάλυση
• ΜΙΚΡΟΥΠΟΛΟΓΙΣΤΕΣ
• ΧΑΡΑΚΤΗΡΙΣΤΙΚΑ ΠΟΙΟΤΗΤΑΣ
• Φυσικές Επιστήμες
• Natural Sciences
• Χημεία
• Chemical Sciences

Language dc:language

gre

Identifier

10.12681/eadd/1577

OAI identifier oai:identifier

oai:10442/1577