Primjena Au/CA/NTA senzora za određivanje olova pomoću voltametrije s katodnim “strippingom” (CROSBI ID 601667)
Prilog sa skupa u zborniku | sažetak izlaganja sa skupa | domaća recenzija
Podaci o odgovornosti
Palčić, Marina ; Kereković, Irena ; Milardović, Stjepan ; Grabarić, Zorana ; Kapor, Frankica
hrvatski
Primjena Au/CA/NTA senzora za određivanje olova pomoću voltametrije s katodnim “strippingom”
A self assembled monolayer (SAM) of cysteamine (CA) was prepared on the surface of gold disc electrode and further modified with nitrilotriacetic acid (NTA). Characterization of prepared Au/CA/NTA electrode was done with cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in the presence of potassium hexacyanoferrate(II)/(III). Thus prepared electrode was tested for determination of lead. The binding of Pb2+ onto the modified electrode was successfully performed in the wide range of tested concentrations. The response of modified electrode to Pb2+ concentration was measured by cathodic stripping voltammetry. Under the optimized working conditions (accumulation time, pH for lead accumulation, and pH for lead stripping), the dependence of the stripping peak current response on concentration of Pb2+ was linear in the range of 0.001 – 10 µM with a correlation coefficient of 0.9839. The interference of Co2+, Ni2+ Mg2+, Mn2+ and Ca2+ was significantly reduced in boric buffer pH=7. Lead determination in potable and thermal water samples confirmed practical application of prepared sensor.
samoformirajući sloj; senzor; voltametrija s otapanjem; olovo
nije evidentirano
engleski
Application of Au/CA/NTA Sensor for Lead Determination by Cathodic Stripping Voltammetry
nije evidentirano
self assembled monolayer; sensor; cathodic stripping voltammetry; lead
nije evidentirano
Podaci o prilogu
125-125.
2013.
objavljeno
Podaci o matičnoj publikaciji
XXIII. hrvatski skup kemičara i kemijskih inženjera : knjiga sažetaka = XXIIIth Croatian Meeting of Chemists and Chemical Engineers : book of abstracts
Hadžiev, Andrea ; Blažeković, Zdenko
Zagreb: Hrvatsko društvo kemijskih inženjera i tehnologa (HDKI)
978-953-6894-50-5
Podaci o skupu
Hrvatski skup kemičara i kemijskih inženjera (23 ; 2013)
poster
21.04.2013-24.04.2013
Osijek, Hrvatska