The following information was submitted:
Transactions: INTERNATIONAL JOURNAL of BIOLOGY and BIOMEDICAL ENGINEERING
Transactions ID Number: 20-688
Full Name: Eugenia Eftimie Totu
Position: Professor
Age: ON
Sex: Female
Address: Dept. of Analytical Chemistry, Faculty of Applied Chemistry, Univ. Politehnica of Bucharest, Str. Polizu 1-5, sector 1, Bucharest
Country: ROMANIA
Tel: 0040213112805
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E-mail address: eugenia.eftimie@et-consulting.ro
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Title of the Paper: Application of Ammonium sensor for environment analysis
Authors as they appear in the Paper: Eugenia Eftimie Totu, Rares Girdea
Email addresses of all the authors: eugenia.eftimie@et-consulting, rares.girdea@yahoo.com
Number of paper pages: 8
Abstract: The need to analyze some chemical species in complex systems has brought a rapid advance in new analytical tools. Ammonium sensor for determination of ammonia in fertilizer samples is described in such context. It is based on a polyimide (PI) matrix selective device and it is compared with an ion-selective electrode (ISE) with polyvinyl chloride (PVC) membrane. Attempts to obtain also a workable ammonium selective membrane using polyetherimide (PEI) were unsuccessful due to poor solubility of the electroactive component. The polyimide based device shows good results for the ammonium content of the complex fertilizer samples when compared with those ones obtained with PVC based ISE. The sensor shows a slope of 55.13 mV.dec-1 and a good selectivity against potassium.
Keywords: Ammonium sensor, Complex fertilizer, Environmental analysis, Polyimide, Selective membrane,
EXTENSION of the file: .doc
Special (Invited) Session: Selective devices for applications in environmental protection
Organizer of the Session: 301-147
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