Electrochemical fabrication of molecularly imprinted porous silicate film electrode for fast and selective response of methyl parathion

Organophosphorus Pesticides Analysis

“…The electrochemical method of choice applied to OP pesticides analysis, considering the period 2005-2011, is square-wave voltammetry (Li and al., 2011;Parham and Rahbar, 2010;Sbaï et al, 2007;Tan et al, 2010;Wang and Li, 2008). It is recognized as a high sensitive regarding the detection of organic molecules.…”

“…Current efforts are directed toward sensitivity and selectivity improvement by chemical modification of the electrode surface. The reported techniques include: nano-ZrO 2 modification of a carbon paste electrode (Parham and Rahbar, 2010), fabrication of ZrO 2 /Au nano-composite films on alumina substrates , electrodeposition of molecularly imprinted porous silicate (Tan et al, 2010) or of gold-sodium dodecylbenzene sulfonate nanoparticles onto a glassy carbon electrode (Li and al., 2011a), tetrasulfonated phtalocyanine electrodeposition combined with Nafion coating of carbon fibres (Sbaï et al, 2007), etc. ZrO 2 nanoparticles in particular, used as a selective sorbents for solid-phase extraction, demonstrate excellent performance in OP pesticides detection, because of their affinity toward the phosphate group on OP pesticide molecule (Parham and Rahbar, 2010;Wang and Li, 2008).…”

“…ZrO 2 nanoparticles in particular, used as a selective sorbents for solid-phase extraction, demonstrate excellent performance in OP pesticides detection, because of their affinity toward the phosphate group on OP pesticide molecule (Parham and Rahbar, 2010;Wang and Li, 2008). The developed electrochemical methods are applied for OP pesticides determination in pears (Li and al., 2011;Tan et al, 2010), and in water samples (Parham and Rahbar, 2010). Some relevant data revealing the sensitivity of the determinations are presented in Table 4.…”

Enhancement of surface plasmon resonance signals using a MIP/GNPs/rGO nano-hybrid film for the rapid detection of ractopamine

“…This ionic liquid has been shown to have a wide electrochemical window, high ionic conductivity, and good solubility in material preparation (Guo et al, 2011;Tan et al, 2010). In this study, the ionic liquid was used to provide the desired surface binding groups between the GNPs and rGO because the ionic liquid provides a shielding effect to the π-π stacking interaction among GNPs/rGO composite, thereby promoting appropriate dispersion (Lu et al, 2012;Acik et al, 2012;Baldelli et al, 2011).…”

Electrochemical sensing of methyl parathion on magnetic molecularly imprinted polymer

“…As the chemical residues are usually found collectively in the environment, the study of the effect of related and/or similar compounds which can eventually interfere in the analysis must be addressed (Tan et al, 2010;Zhao et al, 2013;Xu et al, 2014;Xue et al, 2014). To achieve that, and under the same optimized conditions, 100 µL of magnetic-MIP (5.0 mg) was incubated with 100 µL of 0.263 mg L −1 (1.0 μmol L −1 ) of methyl parathion in the presence of the same concentration (1.0 μmol L −1 ) of malathion, 4-nitrophenol and phenol (0.330, 0.139 and 0.094 mg L −1 , respectively) and determined by SWV in BR buffer (pH = 2).…”