119th General Meeting of the KCS

Type Oral Presentation
Area Oral Presentation of Young Analytical Chemists Ⅱ
Room No. 303호
Time FRI 10:10-:
Code ANAL2.O-32
Subject Copper Coordinated Cationic Polyvinylpyrrolidone as a Novel Fluorescent Probe for Hydrogen Sulfide in Aqueous Solution
Authors ABDELAAL ALI, Salah Mahmoud Tawfik Ahmed, 이승하1, 이용일1,*
창원대학교 화학과, Egypt
1창원대학교 화학과, Korea
Abstract A cationic polyvinylpyrrolidone (Cat-PVP) was prepared via Claisen- Schmidt condensation in super basic media and characterized using different spectra analyses (IR and 1H-NMR). The prepared Cat-PVP was utilized to prepare a stable fluorescence copper coordinated cationic polyvinylpyrrolidone in aqueous media. The Cu-CatPVP was successfully utilized to detect hydrogen sulfide (H2S) based on strong affinity between sulfur and copper. The quenching effect on the fluorescence intensity of the Cu-CatPVP probe showed very good linearity with H2S concentrations in the range of 1−40μM, with detection limit as low as 0.13 μM. The presented probe promising selectivity toward H2S over anions, biothiols as well as other amino acids in neutral media and was successfully applied for detecting the H2S in real samples.
E-mail ali_ashour5@yahoo.com