Shima Rezaeian

Department of Chemistry, Faculty of Sciences, Ferdowsi University of Mashhad, Mashhad, I.R. IRAN

[ 1 ] - A Novel Carbon Paste Electrode for Potentiometric Determination of Vanadyl Ion

Carbon paste electrode was modified by disodium 2,4-diamino-7-methylbenzo[g] pteridine-5,10-dioxide to fabricate a sensor for potentiometric determination of vanadyl ion (VO2+) in aqueous medium. The new ligand was synthesized in three steps with high yield. The optimal composition of the carbon paste was made of graphite powder (64.5%), ionophore (16.6%), paraffin oil (17.8%), a...

[ 2 ] - A Synthetic Approach for Evaluation of Cytosinediazonium Susceptibility

Reaction of a nucleobase with nitrosonium ion leads to its diazotization. Due to the instability,the nucleobase-diazonium assumingly falls in dediazotization and successive ring openingreactions. The resulting intermediate of the ring opening reaction is able to covalently cross-linkthe opposite strands of DNA. To examine this assumption for cytosine, some 4-amino-5-cyanopyrimidines were synthe...

نویسندگان همکار

Abolfazl Darroudi 1  

Akram Hosseiny 1  

Hossein Eshghi 1  

Kamahldin Haghbeen 1  

Mehdi Bakavoli 1  

Kamahldin Haghbeen 1  

Mehdi Bakavoli 1