Polarographic Behaviour of Alachlor Application to Analytical Determination

Carrai, Patrizio; Nucci, Lamberto; Pergola, Francesco

doi:10.1080/00032719208020017

Cited by 10 publications

(9 citation statements)

References 6 publications

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“…Both LOD and LOQ values confirmed the sensitivity of the proposed DP CSV procedure compared to most of the reported chromatographic methods e.g. SPE-LC-ESI-MS/MS [26], UPLC-MS/MS [8], HPLC [9], GC/MS [10] LC-MS/MS [12] and polarographic [13,14] and voltammetric [15][16][17] methods. The main analytical features of the proposed method were compared successfully with many of the previously published chromatographic methods ( Table 1).…”

Section: à12supporting

confidence: 82%

Analysis of Some Selected Persistent Organic Chlorinated Pesticides in Marine Water and Food Stuffs by Differential Pulse‐Cathodic Stripping Voltammetry

et al. 2011

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Based on the redox characteristics of two selected organochlorine pesticides namely alachlor (ALC) and chlorfenvinphos (CHL) in Britton-Robinson (B-R) buffer at a hanging mercury drop, Pt and Au working electrode (HMDE), a fast, simple and selective differential pulse cathodic stripping voltammetric (DP CSV) method was developed for their determination. The cathodic stripping peak currents for ALC versus concentrations was linear in the range from 7.4 10 À9 to 1.4 10 À7 mol L À1 and in the range from 2.7 10 À9 to 1.6 10 À8 mol L À1 for CHL. The method was applied for the analysis of trace concentrations of ALC and CHL in fresh-and marine water (Atlantic and Red Sea) and sediment samples and food stuffs.

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Section: à12supporting

confidence: 82%

Analysis of Some Selected Persistent Organic Chlorinated Pesticides in Marine Water and Food Stuffs by Differential Pulse‐Cathodic Stripping Voltammetry

et al. 2011

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“…Also, first derivative and kinetic spectrophotometric methods were applied for determination of chlorpyrifos and some other organophosphorus pesticides [8]. Electrochemical methods, e.g., polarography and voltammetry have been applied for determination of some pesticides in soil and water [9][10][11]. But no work has been reported in the literature dealing with polarographic behavior as well the polarographic determination of the title compound.…”

Section: Introductionmentioning

confidence: 99%

Differential Pulse Polarographic Analysis of Chlorpyrifos Insecticide

1998

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The differential pulse polarographic (DPP) behavior of chlorpyrifos (CP) was investigated over a wide range of pH (pH 1.8-pH 10.1). CP compound displays a well-resolved cathodic reduction peak at ¹1.2 V (vs. Ag/AgCl) (pH 3.2). This peak probably corresponds to the reduction of the --C=N-centre of the pyridyl moiety. The effect of solution and operational parameters on the sensitivity of the DPP peak was carefully examined in order to select the optimum conditions for determination of the CP compound. Under the optimum conditions the reduction response gives a linear calibration plot over a concentration range of 9.70 × 10 ¹7 -6.92 × 10 ¹6 M and the detection limit was found to be 8.7 × 10 ¹7 M. The effects of some diverse metal ions, anions and some other organophosphorus insecticides on the determination of CP compound were studied. The applicability of DPP for determination of the CP insecticide in a commercial sample as well as in some irrigation water (treated waste water and underground water) was detected.

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“…[21,22] The electrochemical behavior of some of the cycloalkene-containing compounds of this group (dieldrin, heptachlor, endosulfan, and endosulfansulfate), whose structure is shown schematically in Fig. 4, has been widely reported.…”

Section: Organochlorides Pesticidesmentioning

confidence: 99%

“…In another work, the adsorption behavior of alachlor and its electrochemical reaction products in the presence of different surfactants were studied in order to improve the signal/noise ratio. [21] It was proven that these compounds are adsorbed in the surface of the mercury electrode to the detriment of the pesticides and/or their reaction products. Because in this group of pesticides, the reduction reaction gives rise to a negatively charged species, the adsorption of a cationic detergent on the surface of the electrode will produce an attractive electrostatic effect and thereby favor the reduction of alachlor.…”

Section: Organochlorides Pesticidesmentioning

confidence: 99%

“…[50] With the same electrodes, it was possible to develop a continuous flow analysis system employing an amperometric detection technique. [51] To quantitate paraquat in riverine waters, the electrode used was a carbon paste electrode chemically modified with Amberlite XAD-2 resin, the limit of detection attained was 0.10 mg mL 21 . [52] Despite the advantages and characteristics of the glassy carbon electrode with a mercury film (MFE) being well known for the determination of metals, the number of works describing the estimation of organic compounds is small.…”

Section: Solid Electrodesmentioning

confidence: 99%

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Electrochemical Methods in Pesticides Control

et al. 2004

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The state of the art of voltammetric and amperometric methods used in the study and determination of pesticides in crops, food, phytopharmaceutical products, and environmental samples is reviewed. The main structural groups of pesticides, i.e., triazines, organophosphates, organochlorides, nitrocompounds, carbamates, thiocarbamates, sulfonylureas, and bipyridinium compounds are considered with some degradation products. The advantages, drawbacks, and trends in the development of voltammetric and amperometric methods for study and determination of pesticides in these samples are discussed.

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Polarographic Behaviour of Alachlor Application to Analytical Determination

Cited by 10 publications

References 6 publications

Analysis of Some Selected Persistent Organic Chlorinated Pesticides in Marine Water and Food Stuffs by Differential Pulse‐Cathodic Stripping Voltammetry

Analysis of Some Selected Persistent Organic Chlorinated Pesticides in Marine Water and Food Stuffs by Differential Pulse‐Cathodic Stripping Voltammetry

Differential Pulse Polarographic Analysis of Chlorpyrifos Insecticide

Electrochemical Methods in Pesticides Control

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