Difference in the electrochemical behavior of three isomeric phthalaldehydes |
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| Affiliation: | 1. Departamento de Electrónica, Universidad de Guadalajara, Av. Revolución 1500, C.P. 44840 Guadalajara, Mexico;2. Instituto de Física, Facultad de Ingeniería (UdelaR), J. Herrera y Reissig 565, Montevideo, Uruguay;1. Key Laboratory of Tobacco Chemistry, Zhengzhou Tobacco Research Institute of CNTC, Zhengzhou 450001, PR China;2. Department of Polymer Science and Engineering, University of Science and Technology of China, Hefei 230026, PR China;1. Centre for Biomaterials and Tissue Engineering, Universitat Politècnica de València, Spain;2. Biomedical Research Networking Center in Bioengineering, Biomaterials and Nanomedicine (CIBER-BBN), Spain;3. Ikasia Technologies SL, València, Spain;4. Division of Biomedical Engineering, School of Engineering, University of Glasgow, United Kingdom |
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| Abstract: | Polarographic current–voltage curves enabled distinguishing between the degree of covalent hydration of iso-, tere-, and orthophthalaldehydes. Hydration, which is negligible for isophthalaldehyde, strong for terephthalaldehyde and very strong for orthophthalaldehyde, together with acid–base reactions, affect the electrolysis of each of the three isomers differently. In solutions of orthophthalaldehyde polarography enables simultaneous following of concentrations of the unhydrated, acyclic monohydrated, cyclic hemiacetal forms. Each of these forms react with amino acids by a different rate. |
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