TY - JOUR
T1 - Electrochemical detection of N‐nitrosodimethylamine using a molecular imprinted polymer
AU - Cetó, Xavier
AU - Saint, Christopher
AU - Chow, Christopher W K
AU - Voelcker, Nicolas H.
AU - Prieto-Simón, Beatriz
PY - 2016/12/1
Y1 - 2016/12/1
N2 - We report on the development of an impedimetric sensor towards the determination of N‐nitrosodimethylamine (NDMA) in water samples. The approach presented herein is based on the usage of a molecular imprinted polymer (MIP) as the recognition element in conjunction with a glassy carbon electrode (GCE) as the electrochemical transducer. To this end, the MIP particles were first synthesized by the precipitation polymerization method, and afterwards entrapped in an electropolymerized polypyrrole membrane. The developed sensor showed a selective response towards NDMA with a linear range from 10 to 230 μg L−1 and a limit of detection of 0.85 μg L−1; without showing significant response towards structurally-related compounds. The MIP gave an order of magnitude higher sensitivity for NDMA detection than the non-imprinted polymer (NIP). Lastly, the developed sensor was applied to the determination of NDMA in spiked drinking and recycled water samples, obtained from conventional treatment and disinfection systems, without showing any matrix effect.
AB - We report on the development of an impedimetric sensor towards the determination of N‐nitrosodimethylamine (NDMA) in water samples. The approach presented herein is based on the usage of a molecular imprinted polymer (MIP) as the recognition element in conjunction with a glassy carbon electrode (GCE) as the electrochemical transducer. To this end, the MIP particles were first synthesized by the precipitation polymerization method, and afterwards entrapped in an electropolymerized polypyrrole membrane. The developed sensor showed a selective response towards NDMA with a linear range from 10 to 230 μg L−1 and a limit of detection of 0.85 μg L−1; without showing significant response towards structurally-related compounds. The MIP gave an order of magnitude higher sensitivity for NDMA detection than the non-imprinted polymer (NIP). Lastly, the developed sensor was applied to the determination of NDMA in spiked drinking and recycled water samples, obtained from conventional treatment and disinfection systems, without showing any matrix effect.
KW - Electrochemical impedance spectroscopy
KW - Molecular imprinted polymer
KW - N-nitrosodimethylamine
KW - Pyrrole
KW - Water
UR - http://www.scopus.com/inward/record.url?scp=84977618572&partnerID=8YFLogxK
U2 - 10.1016/j.snb.2016.06.136
DO - 10.1016/j.snb.2016.06.136
M3 - Article
AN - SCOPUS:84977618572
SN - 0925-4005
VL - 237
SP - 613
EP - 620
JO - Sensors and Actuators B: Chemical
JF - Sensors and Actuators B: Chemical
ER -