lead forms the complexes with xylenol orange in the basic solution. an adsorptivedifferential pulse stripping method for the determination of lead is proposed. the procedureinvolves an adsorptive accumulation of lead on a hanging mercury drop electrode (hmde) inthe presence of xylenol orange, followed by reduction of adsorbed lead by voltammetric scanusing differential pulse modulation. the opt...

Deposition and stripping of lead ions at thiol based disorganised monolayer modified gold piezoelectrodes was studied by cyclic voltammetry (CV) and electrochemical quartz crystal nanobalance (EQCN). Gold electrodes modified with 3-mercaptopropionic acid and 1,3-dimercapto propane sulphonic acid were studied. Due to the proximity of the potentials for the Pb deposition and thiol reductive desor...

An electroanalytical method has been introduced for highly sensitive determination of hydralazine hydrochloride (Hy-HCl) based on its oxidation at a glassy carbon electrode modified with multiwalled carbon nanotubes (MWCNT/GCE). Studies showed that the electrochemical oxidation of Hy-HCl was accompanied by adsorption and highly sensitive responses could be achieved by adsorptive stripping volta...

Trace metals play an important role in the regulation of primary productivity and phytoplankton community composition. Metal species directly affects biogeochemical cycling processes, transport, fate, bioavailability toxicity trace metals. Therefore, developing powerful methods for metal speciation analysis is very useful research a range fields, including chemical environmental analysis. Volta...

The importance of selenium in the marine environment is highlighted by its bilateral behavior as a nutrient and toxic element. cathodic stripping voltammetry validated method was used to determine concentration. concentration total dissolved (TDSe) Al-Arbaeen Sharm Obhur lagoons along eastern Red Sea coastal waters determined. seven fish species’ muscles TDSe surface water showed maximum 18.56 ...