In-situ deposited ion-imprinted polymers for electrochemical detection of trace cadmium in water

Two kinds of in-situ deposited ion imprinted polymers (IIPs) using electropolymerization method were presented for electrochemical detection of trace cadmium in water, which are ion imprinted polypyrrole/reduce graphene oxide modified glassy carbon electrode (IIPpy/rGO/GCE) and ion imprinted polyo-phenylenediamine/reduced graphene oxide modified glassy carbon electrode (IIPoPD/rGO/GCE). Electrochemical analysis of cadmium on the two modified electrodes was investigated by square wave anodic stripping voltammetry (SWASV) under the optimized conditions. The experiment results showed that IIPpy/rGO/GCE had wider linear range (1-100μg/L) and IIPoPD/rGO/GCE possessed lower detection limit (0.13 μg/L). The two kinds of modified electrodes are both green, simple, reused and compatible for trace cadmium detection in water with highly selectivity.

[1]  Zhong Zhang,et al.  Current status and challenges of ion imprinting , 2015 .

[2]  M. Svartengren,et al.  Distribution and concentration of cadmium in human kidney. , 1986, Environmental research.

[3]  Wei Qin,et al.  An ionophore–Nafion modified bismuth electrode for the analysis of cadmium(II) , 2010 .

[4]  Youyu Su.  Recent Innovations of Molecularly Imprinted Electrochemical Sensors Based on Electropolymerization Technique , 2015 .

[5]  T. Levitskaia,et al.  Direct Spectrophotometric Analysis of Cr(VI) Using a Liquid Waveguide Capillary Cell , 2008, Applied spectroscopy.

[6]  P. Rehulka,et al.  Determination of palladium and platinum by electrothermal atomic absorption spectrometry after deposition on a graphite tube , 1999 .

[7]  Hong Qun Luo,et al.  Simultaneous determination of chromium(III) and cadmium(II) by differential pulse anodic stripping voltammetry on a stannum film electrode. , 2007, Talanta.

[8]  M. Taher,et al.  Determination of cadmium(II) using carbon paste electrode modified with a Cd-ion imprinted polymer , 2012, Microchimica Acta.

[9]  E. Wang,et al.  Nafion–graphene nanocomposite film as enhanced sensing platform for ultrasensitive determination of cadmium , 2009 .

[10]  R. Zare‐Dorabei,et al.  Probe for sensitive direct determination of sulphide ions based on gold nanoparticles. , 2018, IET nanobiotechnology.

[11]  Lambkin,et al.  The problem of arsenic interference in the analysis of soils for cadmium by inductively coupled plasma-optical emission spectrometry , 2000, The Science of the total environment.

[12]  K. Vytras,et al.  Novel electrode for electrochemical stripping analysis based on carbon paste modified with bismuth powder , 2005 .

[13]  T. Alizadeh,et al.  A carbon paste electrode impregnated with Cd2+ imprinted polymer as a new and high selective electrochemical sensor for determination of ultra-trace Cd2+ in water samples , 2011 .

[14]  Leyu Wang,et al.  Preparation and application of a novel core/shell organic nanoparticle as a fluorescence probe in the selective determination of Cr(VI). , 2005, Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy.

[15]  Gil-Ho Hwang,et al.  Determination of trace metals by anodic stripping voltammetry using a bismuth-modified carbon nanotube electrode. , 2008, Talanta.

[16]  H. Bai,et al.  Three-dimensional porous graphene-based composite materials: electrochemical synthesis and application , 2012 .