TY - JOUR
T1 - Voltammetric determination of 4-Nitrophenol using a novel type of silver amalgam paste electrode
AU - Niaz, Abdul
AU - Fischer, Jan
AU - Barek, Jiří
AU - Yosypchuk, Bogdan
AU - Sirajuddin,
AU - Bhanger, Muhammad Iqbal
PY - 2009/8/1
Y1 - 2009/8/1
N2 - A differential pulse voltammetric (DPV) method was developed for the determination of 4-nitrophenol (4-NP) at a newly developed silver amalgam paste electrode (AgA-PE) in Britton -Robinson buffer pH 3.0. The electrode is based on a disposable plastic pipette tip filled with paste amalgam based on a mixture of mercury and fine silver powder (9:1, w/w). The experimental parameters, such as pH of Britton -Robinson buffer and activation and regeneration potential of the electrode surface were optimized. The reduction peak current dependences were linear for the concentration of 4-NP from 0.2 to 100 mM. The method showed reproducible results with RSD (n=45) of 1.7%. The limit of determination (LOD) was 0.3 mM. The method was successfully applied for the direct determination of 4-NP in drinking water.
AB - A differential pulse voltammetric (DPV) method was developed for the determination of 4-nitrophenol (4-NP) at a newly developed silver amalgam paste electrode (AgA-PE) in Britton -Robinson buffer pH 3.0. The electrode is based on a disposable plastic pipette tip filled with paste amalgam based on a mixture of mercury and fine silver powder (9:1, w/w). The experimental parameters, such as pH of Britton -Robinson buffer and activation and regeneration potential of the electrode surface were optimized. The reduction peak current dependences were linear for the concentration of 4-NP from 0.2 to 100 mM. The method showed reproducible results with RSD (n=45) of 1.7%. The limit of determination (LOD) was 0.3 mM. The method was successfully applied for the direct determination of 4-NP in drinking water.
KW - Drinking water
KW - Environmental chemistry
KW - Silver amalgam paste electrode
KW - Voltammetry
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U2 - 10.1002/elan.200904622
DO - 10.1002/elan.200904622
M3 - Article
AN - SCOPUS:70249136911
VL - 21
SP - 1786
EP - 1791
JO - Macromolecular Chemistry and Physics
JF - Macromolecular Chemistry and Physics
SN - 1040-0397
IS - 16
ER -