Electrochemical behavior of acid orange 7 has been exhaustively studied in aqueous solutions with different pH values, using cyclic voltammetry and constant current coulometry. This study has provided new insights into the mechanistic details, pH dependence and intermediate structure of both electrochemical oxidation and reduction of acid orange 7. Surprisingly, the results indicate that a same...

The title compound, C(21)H(21)NO(2)·C(3)H(7)NO, was synthesized by solvent-free one-pot three-component reaction of naphthalen-2-ol, 2-hy-droxy-benzaldehyde and pyrrolidine. The dihedral angle between the naphthalene ring system and the benzene ring is 77.74 (6)°. The pyrrolidine ring assumes an envelope conformation. An intra-molecular O-H⋯N and an inter-molecular O-H⋯O hydrogen bond are obser...

A new benzothiazole-based chemosensor BTN (1-((Z)-(((E)-3-methylbenzo[d]thiazol-2(3H)-ylidene)hydrazono)methyl)naphthalen-2-ol) was synthesized for the detection of Cu2+. could detect Cu2+ with “off-on” fluorescent response from colorless to yellow irrespective presence other cations. Limit determined be 3.3 μM. Binding ratio and turned out a 1:1 analysis Job plot ESI-MS. Sensing feature by exp...

Abstract By monitoring biomarkers in urine, personal exposure to selected chemical substances can be assessed. In this paper, we describe the of 7 benzophenone and 2 camphor UV-filters 11 metabolites polycyclic aromatic hydrocarbons (OH-PAHs) 454 urine samples collected from mothers new-borns an industrial (Karvina) reference area (Ceske Budejovice) over winter summer seasons. The analytical me...