A novel approach based on capillary liquid chromatography for the simultaneous determination of neonicotinoid residues in cereal samples

Carbonell‐Rozas, Laura; Lara, Francisco J.; Olmo‐Iruela, Monsalud del; Garcı́a-Campaña, Ana M.

doi:10.1016/j.microc.2020.105756

Cited by 10 publications

(8 citation statements)

References 41 publications

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“…At present, research on the insecticidal activity of DNF has been developed to the enantiomeric level. In recent years, many physical and chemical analysis methods have been developed to determine DNF, including gas chromatography (GC), liquid chromatography (LC), LC-mass spectrometry (LC-MS), and enzyme-linked immunosorbent assay (ELISA) . Yang et al prepared a dual-emission ratio fluorescent probe based on sulfur-doped carbon quantum dots and copper nanoclusters hybrid (S-CQD/CuNCs) for selective detection of DNF with a detection limit as low as 7.04 μmol/L .…”

Section: Introductionmentioning

confidence: 99%

A Dimode Scattering Method for Ultratrace Dinitrofuran Detection with Nanopalladium Molecularly Imprinted Polymer Nanocatalytic Probe

Chen,

Wen,

Liang

et al. 2024

Langmuir

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With four nanoparticles as the nanomatrix, dinotefuran (DNF) as the template molecule, N-isopropylacrylamide as the functional monomer, trimethylolpropane and trimethacrylate as the cross-linker, four nanosurface molecularly imprinted polymer (MIP) bifunctional probes were prepared by microwave synthesis. It was found that palladium nanosurface MIP (Pd@MIP) not only recognized DNF but also had the strongest catalytic effect on the new nanogold indicator reaction of acrylic acid-HAuCl 4 , which was evaluated quickly with the slope procedure developed by us. The generated gold nanoparticles (AuNPs) not only possessed the resonance Rayleigh scattering (RRS) effect but also strong surface-enhanced Raman scattering (SERS) activity. The combination of Pd@MIP with DNF enhanced the catalytic effect by coupling the nanosurface electrons with π-electrons, thus enhancing both scattering signals. A new Pd@MIP nanoprobe catalytic-SERS/RRS dual-mode analytical platform was developed for the specific and sensitive detection of DNF. The linear ranges of the SERS and RRS methods were 0.075−0.75 and 0.1−0.75 nmol/ L, and the limits of detection were 0.03 and 0.06 nmol/L, respectively. The standard deviations were 0.54−2.39%, and the recoveries were 93−105%.

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Section: Introductionmentioning

confidence: 99%

A Dimode Scattering Method for Ultratrace Dinitrofuran Detection with Nanopalladium Molecularly Imprinted Polymer Nanocatalytic Probe

Chen,

Wen,

Liang

et al. 2024

Langmuir

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“…NNIs feature specific physicochemical properties such as high water solubility, thermolability, and low volatility. Therefore, liquid chromatography combined with UV [ 11 , 12 , 13 ] and mass spectrometry (MS) detection [ 14 , 15 , 16 ] or gas chromatography with MS detection [ 17 ] are the most frequently applied techniques for the determination of NNI residues in various matrices mainly including food and environmental samples. Clean-up and preconcentration steps are usually required for sample pretreatment to improve both sensitivity and selectivity.…”

Section: Introductionmentioning

confidence: 99%

Nanofibrous Online Solid-Phase Extraction Coupled with Liquid Chromatography for the Determination of Neonicotinoid Pesticides in River Waters

et al. 2022

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Polymeric nano- and microfibers were tested as potential sorbents for the extraction of five neonicotinoids from natural waters. Nanofibrous mats were prepared from polycaprolactone, polyvinylidene fluoride, polystyrene, polyamide 6, polyacrylonitrile, and polyimide, as well as microfibers of polyethylene, a polycaprolactone nano- and microfiber conjugate, and polycaprolactone microfibers combined with polyvinylidene fluoride nanofibers. Polyimide nanofibers were selected as the most suitable sorbent for these analytes and the matrix. A Lab-In-Syringe system enabled automated preconcentration via online SPE of large sample volumes at low pressure with analyte separation by HPLC. Several mat layers were housed in a solvent filter holder integrated into the injection loop of an HPLC system. After loading 2 mL sample on the sorbent, the mobile phase eluted the retained analytes onto the chromatographic column. Extraction efficiencies of 68.8–83.4% were achieved. Large preconcentration factors ranging from 70 to 82 allowed reaching LOD and LOQ values of 0.4 to 1.7 and 1.2 to 5.5 µg·L−1, respectively. Analyte recoveries from spiked river waters ranged from 53.8% to 113.3% at the 5 µg·L−1 level and from 62.8% to 119.8% at the 20 µg·L−1 level. The developed methodology proved suitable for the determination of thiamethoxam, clothianidin, imidacloprid, and thiacloprid, whereas matrix peak overlapping inhibited quantification of acetamiprid.

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“…1,2 But it cannot be ignored that potential threat to the environmental risks and human health associated with thiamethoxam is still being assessed. 3 To date, a variety of methods, such as fluorimetry, 4,5 high performance liquid chromatography (HPLC), 6,7 capillary liquid chromatography (CLC) 8,9 and mass spectrometry (MS) [10][11][12] have been established to analyses thiamethoxam residue in different samples. Owing to its high sensitivity, rapid response, low-cost and on-site applications, electrochemical sensing methods have been also used to analyses thiamethoxam.…”

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confidence: 99%

“…15 As a new "fascinating cyclophanes," pillar [n] arenes (e.g. pillar [5]arene or pillar [6]arene) was initially reported by Ogoshi et al 19 They have more excellent host-guest performances than other traditional macrocyclic hosts due to unique pillar shape structure and high solubility in aqueous solutions. [20][21][22] Some research groups have presented their pillar-based composite film for electrochemical sensing.…”

mentioning

confidence: 99%

“…30,31 Thus, some progress has been reported in the graphene-based film prepared by direct electrodeposition on the surface of electrodes for electrochemical sensing. [32][33][34] Recently, we presented direct electrodeposition fabrication of reduced graphene oxide-water soluble cationic pillar [6]arene composite film. 35,36 The prepared film demonstrates higher electrochemical response to various analytes (e.g., adenine, guanine, ascorbic acid, folic acid and so on) than that of ErGO film.…”

mentioning

confidence: 99%

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A Robust Electrochemical Sensor for Determination of Thiamethoxam Based on Electrochemical Reduced Graphene Oxide-Cationic Pillar[6]arene Composite Film

Han

et al. 2021

J. Electrochem. Soc.

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On the surface of a glassy carbon electrode, electrochemically reduced graphene oxide-cationic pillar[6]arene (ErGO-CP6) composite film was constructed using a pulsed potential method. UV–vis spectra, SEM, Raman spectra and electrochemical experiments were applied to characterize the composite film. It was then used as a new electrochemical sensing platform for determination of thiamethoxam. Due to the synergistic effect of ErGO and CP6, this composite film shows a higher sensitivity and better selectivity toward thiamethoxam than that of ErGO film. The linear range from 1.0 × 10−7 to 1.3 × 10−5 mol l−1 was obtained by differential pulse voltammetry. Meanwhile, the method was applied to cucumber and tomato samples in a recovery test. The recovery was between 92.0% and 98.7%, and the results are satisfactory. This study presents a promising electrochemical sensing platform for rapid and sensitive analysis of thiamethoxam.

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A novel approach based on capillary liquid chromatography for the simultaneous determination of neonicotinoid residues in cereal samples

Cited by 10 publications

References 41 publications

A Dimode Scattering Method for Ultratrace Dinitrofuran Detection with Nanopalladium Molecularly Imprinted Polymer Nanocatalytic Probe

A Dimode Scattering Method for Ultratrace Dinitrofuran Detection with Nanopalladium Molecularly Imprinted Polymer Nanocatalytic Probe

Nanofibrous Online Solid-Phase Extraction Coupled with Liquid Chromatography for the Determination of Neonicotinoid Pesticides in River Waters

A Robust Electrochemical Sensor for Determination of Thiamethoxam Based on Electrochemical Reduced Graphene Oxide-Cationic Pillar[6]arene Composite Film

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