ΜΕΛΕΤΗ ΠΡΟΣΔΙΟΡΙΣΜΟΥ ΕΝΩΣΕΩΝ ΥΔΡΑΡΓΥΡΟΥ ΜΕ ΤΗ ΦΑΣΜΑΤΟΜΕΤΡΙΑ ΑΤΟΜΙΚΗΣ ΑΠΟΡΡΟΦΗΣΗΣ ΨΥΧΡΟΥ ΑΤΜΟΥ ΚΑΙ ΒΕΛΤΙΣΤΟΠΟΙΗΣΗ ΜΕ ΠΑΡΑΓΟΝΤΙΚΟ ΣΧΕΔΙΑ...

THE SCOPE OF THIS WORK WAS THE OPTIMIZATION OF COLD VAPOR ATOMIC ABSORPTION SPECTROMETRY, WHICH IS USED AT MERCURY DETERMINATIONS. THE METHOD WAS OPTIMIZED EITHER AS DIRECT DETERMINATION WITHOUT PRECONCENTRATION AND WITH PRECONCENTRATIONON A AU-PT AMALGAMATOR . IN THE FIRST CASE THE OPTIMIZATION WAS ACHIEVED BY THE APPLICATION OF A COMPLETE FACTORIAL DESIGN, ANALYSIS OF VARIANCE OF RESULTS AND DETERMINATION OF OPTIMUM RESPONSE SURFACE BY MEANS OF ONE-AT-A-TIME EXPERIMENTS. IN THE SECOND CASE, THE OPTIMIZATION WAS DONE BY SUBSEQUENT USE OF FRACTIONAL FACTORIAL DESIGN, ANALYSIS OF VARIANCE AND FINALLY A MODIFIED SIMPLEX METHOD. IN BOTH CASES THE FACTORS AFFECTING THE DETERMINATION OF MERCURY WERE EVALUATED QUANTITATIVELY, THE SIGNIFICANT INTERACTIONS WERE REVEALED, THE OPTIMUM RESPONSE SURFACES WERE LOCALIZED AND CALIBRATION CURVES WERE PLOTTED. ANOTHER AIM OF THIS WORK WAS TO FIND THE OPTIMUM CONDITIONS FOR THE SELECTIVE DETERMINATIONOF SOME ORGANOMERCURY SPECIES IN THEIR MIXTURES. THE BEHAVIOUR OF THEM WAS TESTED AGAINST SOME OXIDANTS AND THE DIFFERENCES BETWEEN THEM WERE MAXIMIZED TO PERMIT THE DIFFERENTIATION OF THEM BY MEANS OF CV-AAS WITH SEMI-QUANTITATIVE RESULTS. THE SPECTRAL INTERFERENCES OF SOME ORGANIC SOLVENTS WERE STUDIED AND TWO CHEMICAL METHODS OF IMPROVING THE TOLERANCE LIMITS OF THEM WERE TRIED WITH SUFFICIENT RESULTS. FINALLY ALL THE ABOVE WERE APPLIED TO A LARGE NUMBER OF REAL SAMPLES OF ENVIRONMENTAL INTEREST AS WELL AS TO STANDARD REFERENCE MATERIALS OF COMPOSITE STRUCTURE. THE PERFORMANCE CHARACTERISTICS OF THE METHOD WERE VERY GOODAND ALLOWED ACCURATE DETERMINATION OF MERCURY IN CONCENTRATION LEVELS OF SOME NG/1.

Grantor dc:publisher

Αριστοτέλειο Πανεπιστήμιο Θεσσαλονίκης (ΑΠΘ)

Year dc:date

1991

Authors dc:creator

• Ζαχαριάδης, Γεώργιος
• Zachariadis, Georgios

• COLD VAPOUR ATOMIC ABSORPTIONS SPECTROMETRY
• FACTORAL DESIGN
• MERCURY IN ENVIRONMENT SAMPLES
• MERCURY SPECIES
• Optimization
• ORGANOMERCURY SPECIATION
• PRECONCENTRATION OF HG VAPOURS ON AMALGAMATOR
• Simplex method
• SPECTRAL INTERFERENCES FROM ORGANIC SOLVENTS
• TOXICITY OF MERCURY COMPOUNDS
• Βελτιστοποίηση
• Μέθοδος Simplex
• ΜΟΡΦΕΣ ΥΔΡΑΡΓΥΡΟΥ
• Παραγοντικοί σχεδιασμοί
• ΠΡΟΣΔΙΟΡΙΣΜΟΣ ΟΡΓΑΝΟΥΔΡΑΡΓΥΡΙΚΩΝ ΕΝΩΣΕΩΝ
• ΠΡΟΣΥΓΚΕΝΤΡΩΣΗ ΑΤΜΩΝ HG ΣΕ ΑΜΑΛΓΑΜΑΤΟΠΟΙΗΤΗ
• ΤΟΞΙΚΟΤΗΤΑ ΕΝΩΣΕΩΝ ΥΔΡΑΡΓΥΡΟΥ
• ΥΔΡΑΡΓΥΡΟΣ ΣΕ ΠΕΡΙΒΑΛΛΟΝΤΙΚΑ ΔΕΙΓΜΑΤΑ
• ΦΑΣΜΑΤΟΜΕΤΡΙΑ ΑΤΟΜΙΚΗΣ ΑΠΟΡΡΟΦΗΣΗΣ ΨΥΧΡΟΥ ΑΤΜΟΥ
• Φυσικές Επιστήμες
• Natural Sciences
• Χημεία
• Chemical Sciences

Language dc:language

gre

Identifier

10.12681/eadd/1593

OAI identifier oai:identifier

oai:10442/1593