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Pregled bibliografske jedinice broj: 675664

IMPEDIMETRIC Au-NTA SENSOR FOR LEAD DETERMINATION


Palcic, Marina; Kerekovic, Irena; Milardovic, Stjepan; Grabaric, Zorana
IMPEDIMETRIC Au-NTA SENSOR FOR LEAD DETERMINATION // Proceedings of XIV Ružička Days (2012) (znanstveni, prihvaćen)


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Naslov
IMPEDIMETRIC Au-NTA SENSOR FOR LEAD DETERMINATION

Autori
Palcic, Marina ; Kerekovic, Irena ; Milardovic, Stjepan ; Grabaric, Zorana

Vrsta, podvrsta
Radovi u časopisima, znanstveni

Izvornik
Proceedings of XIV Ružička Days (2012)

Status rada
Prihvaćen

Ključne riječi
impedimetric sensor; lead; NTA; self assembled monolayers

Sažetak
A self assembled monolayer (SAM) of cysteamine was prepared on the surface of gold disc electrode and further modified with nitrilotriacetic acid (NTA). Sensor’s surface characterization was performed by cyclic voltammetry (CV) and electrochemical impedance spectroscopy (EIS) in the presence of potassium hexacyanoferrate (II)/(III) redox pair. Complexation of NTA with Pb2+ was tested by EIS measurements using the same redox pair as in the surface characterization. Electrode response (log ∆Rct) was linearly proportional to log c(Pb2+) with correlation coefficient R2 = 0.9865 for measurements in buffer pH = 4.60 and R2 = 0.9931 for pH = 7.06 in the concentration range of 0.06- 66 µmol/L.

Izvorni jezik
Engleski

Znanstvena područja
Kemija



POVEZANOST RADA


Projekti:
058-0580000-3071 - Razvoj kemometričkih i senzorskih metoda određivanja različitih analita (Ninčević Grassino, Antonela, MZOS ) ( POIROT)
125-0000000-3210 - Razvoj novih senzora za mjerenje bioloških važnih analita (Milardović, Stjepan, MZOS ) ( POIROT)

Ustanove:
Prehrambeno-biotehnološki fakultet, Zagreb,
Fakultet kemijskog inženjerstva i tehnologije, Zagreb

Citiraj ovu publikaciju

Palcic, Marina; Kerekovic, Irena; Milardovic, Stjepan; Grabaric, Zorana
IMPEDIMETRIC Au-NTA SENSOR FOR LEAD DETERMINATION // Proceedings of XIV Ružička Days (2012) (znanstveni, prihvaćen)
Palcic, M., Kerekovic, I., Milardovic, S. & Grabaric, Z. (2012) IMPEDIMETRIC Au-NTA SENSOR FOR LEAD DETERMINATION. Prihvaćen za objavljivanje u Proceedings of XIV Ružička Days. [Preprint].
@unknown{unknown, year = {2012}, keywords = {impedimetric sensor, lead, NTA, self assembled monolayers}, journal = {Proceedings of XIV Ru\v{z}i\v{c}ka Days}, title = {IMPEDIMETRIC Au-NTA SENSOR FOR LEAD DETERMINATION}, keyword = {impedimetric sensor, lead, NTA, self assembled monolayers} }
@unknown{unknown, year = {2012}, keywords = {impedimetric sensor, lead, NTA, self assembled monolayers}, journal = {Proceedings of XIV Ru\v{z}i\v{c}ka Days}, title = {IMPEDIMETRIC Au-NTA SENSOR FOR LEAD DETERMINATION}, keyword = {impedimetric sensor, lead, NTA, self assembled monolayers} }




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