Electrochemical stripping analysis of methyl-parathion (MPT) using carbon fiber microelectrodes (CFME) modified with combinations of poly-NiTSPc and Nafion® films

Preparation of a Magnetic Metal Organic Framework Composite and Its Application for the Detection of Methyl Parathion

“…The mechanism for this process has been widely reported. 35,36 Owing to the porosity of the material, it offered a benign microenvironment for MP. Figure 7B shows the DPV response at the potential range from +0.20 to -0.30 V in different cases.…”

“…29,30 The linear range is wider than that obtained based on a Pd/MWCNTs nanocomposite-modified glassy carbon electrode, zirconia nanoparticles-modified gold electrode as well as poly-NiTSPc and Nafion ® films-modified carbon fiber electrode. 30,31,36 The reproducibility of MP was assessed by analyzing samples of 5.00 × 10 -4 g L -1 and the relative standard deviation (RSD) of five replicate determinations was 8.07%. The results indicated acceptable precision and reproducibility.…”

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.…”

Mercaptobenzothiazole-on-Gold Organic Phase Biosensor Systems: 4. Effect of Organic Solvents on Organophosphate and Carbamate Pesticide Determination

“…This poses serious health effects for humans if water, processed food, fruits and vegetables with high concentrations of OPs and CMs are consumed. In children and infants it can lead to serious health effects such as as eye pain, abdominal pain, convulsions, respiratory failure, paralysis and even death (Kim et al, 2007;Liu et al, 2008;Sbai et al, 2007;Skladal et al, 1997). The toxicity of OPs and CMs are caused by their ability to bind irreversibly to the catalytic serine residue in acetylcholinesterase (AChE), which leads to inhibition of AChE that prevents nerve transmission by blocking the breakdown of the transmitter choline (Ch) (Somerset et al, 2009;Liu et al, 2008;Kim et al, 2007;Du et al, 2007;Kim et al, 2000).…”

“…The toxicity of OPs and CMs are caused by their ability to bind irreversibly to the catalytic serine residue in acetylcholinesterase (AChE), which leads to inhibition of AChE that prevents nerve transmission by blocking the breakdown of the transmitter choline (Ch) (Somerset et al, 2009;Liu et al, 2008;Kim et al, 2007;Du et al, 2007;Kim et al, 2000). Since a high degree of toxicity is assigned to organophosphate (OP) and carbamate (CM) pesticide compounds, the rapid detection of these toxic chemicals in environmental samples have become increasingly important (Sbai et al, 2007;Tapsoba et al, 2009;Valdés-Ramírez et al, 2008).…”