Determinati on of ۴-hydroxybe nzoic acid with cy clic voltammetry and differential pulse method using the el ectrode m odified w ith carb on nanotubes

Measurement of drugs in the pharmaceutical industry, medical and biolog ical applications is extensive. Among the electrochemical methods, application methods Voltammet ry with modifie d carbon paste electrodes due to high sensitivity an d ability to detect very low quantities and hig h-speed ope ration and low cost an d ease of e lectrode preparation, the level of renewable and low residual flow in The more recent analytical che mistry has attracted scholars. [۱] The most impo rtant principle for the use of electrochemical method s as an analytic al tool, c apable of oxidation and reduction of the desired sp ecies is r elatively lowpot entials. Ma ny compounds in h ighpotentialoxidation or decre ase, or on the no modific ation electrode surface poor res ponseagain st the oxid ation - redu ction of the show, and thi s leads to a decrease in the sensitivity and selectivity are electroch emical methods of analysis. A reasonable way to reduce voltage electrochemi cal reactio n, the species is a reforme r. Reforme r of the el ectrode surface causes a significa nt improve ment in sensitivity and sel ectivity of e lectrochemical metho ds can reduce the detection limit. [۲]

کلیدواژه ها:

Carbon paste electrode ، Differenti alpluseVoltammetry ، Cyclicvoltammetry ، Reformer species