Fluorimetric Determination of Carbamate Pesticides in Host-Guest Complexes

Veglia, Alicia V.

doi:10.3390/50300437

Cited by 8 publications

(6 citation statements)

References 2 publications

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“…Detection of carbamate pesticides was generally carried out by gas chromatography (Cavaliere, Monteleone, Naccarato, Sindona, & Tagarelli, 2012), high performance liquid chromatography (HPLC) (Song, Shi, & Chen, 2013), flow-injection chemiluminescence (Sanchez- Barragan, Karim, Costa-Fernadez, Piletsky, & Sanz-Medel, 2007), fluorimetry (Veglia, 2000) and competitive immunoassays and immunosensors (March, Manclus, Jimenez, Arnau, & Montoya, 2009;Sun, Du, & Wang, 2012). However, some of these techniques are time consuming and often require expensive instrumentation and toxic organic reagents, making them complicated and thus unsuitable for field routine operation.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical nonenzymatic sensor based on CoO decorated reduced graphene oxide for the simultaneous determination of carbofuran and carbaryl in fruits and vegetables

et al. 2014

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A novel nonenzymatic sensor based on cobalt (II) oxide (CoO)-decorated reduced graphene oxide (rGO) was developed for the detection of carbofuran (CBF) and carbaryl (CBR). Two well-defined and separate differential pulse voltammetric peaks for CBF and CBR were obtained with the CoO/rGO sensor in a mixed solution, making the simultaneous detection of both carbamate pesticides possible. The nonenzymatic sensor demonstrated a linear relationship over a wide concentration range of 0.2-70 μM (R=0.9996) for CBF and 0.5-200 μM (R=0.9995) for CBR. The lower detection limit of the sensor was 4.2 μg/L for CBF and 7.5 μg/L for CBR (S/N=3). The developed sensor was used to detect CBF and CBR in fruit and vegetable samples and yielded satisfactory results.

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Section: Introductionmentioning

confidence: 99%

Electrochemical nonenzymatic sensor based on CoO decorated reduced graphene oxide for the simultaneous determination of carbofuran and carbaryl in fruits and vegetables

et al. 2014

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“…Consequently, the detection of CF in vegetables is important in order to avoid health issues in humans and for environmental safety. For the determination of CF, numerous conventional techniques have been developed such as UV–vis, high-performance liquid chromatography (HPLC), visible LED, immunochromatography, photocatalysis, fluorimetry, and flow-injection chemiluminescence. − Considering concerns about time consumption, cost, and availability of those well-developed methods, the electrochemical approach of CF determination in vegetables is an eco-friendly, cost-effective, and a highly sensitive method compared to other physical or chemical analytical methodologies. Our primary goal in this present work is to develop a low cost, simple, and highly sensitive approach for the determination of toxic CF in vegetable samples for real-time application.…”

Section: Introductionmentioning

confidence: 99%

Rational Design and Interlayer Effect of Dysprosium-Stannate Nanoplatelets Incorporated Graphene Oxide: A Versatile and Competent Electrocatalyst for Toxic Carbamate Pesticide Detection in Vegetables

Thirumalraj

Alagumalai

Chen

et al. 2020

ACS Sustainable Chem. Eng.

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In modern farming, pesticides are extensively used to deliver high-yield harvests with no concern about the amount of toxicity involved in the agriculture process. The continuous usage of pesticides also causes severe health issues for human health. Thus, promoting a rapid and accurate method for ultrasensitive and lowlevel detection of toxic pesticides is essential in real food samples to avoid serious health issues. Herein, we successfully synthesized graphene oxide (GO) incorporated with dysprosium stannate nanoplatelets (Dy 2 Sn 2 O 7 ) through a facile coprecipitation method followed by ultrasonication, which is used for the electrochemical detection of carbofuran (CF) in vegetable samples. The unique structural properties of Dy 2 Sn 2 O 7 /GO were successfully characterized by various analytical and spectroscopic techniques. The electrochemical impedance spectroscopy (EIS) measurements revealed overall elevated electrochemical behavior of the Dy 2 Sn 2 O 7 / GO composite. Additionally, the electrochemical performance of Dy 2 Sn 2 O 7 /GO analyzed by cyclic voltammetry (CV) showed superior electrocatalytic activity toward the detection of CF compared with bare and other composite electrodes due to fast electron transfer behavior and interlayer effect of Dy 2 Sn 2 O 7 NPs and GO. Furthermore, differential pulse voltammetry (DPV) analysis of Dy 2 Sn 2 O 7 /GO revealed the low-level detection limit of CF 14.8 nM with the linear concentration range of 0.05−124.65 μM and a sensitivity of 2.632 μA μM −1 cm −2 . Indeed, the real-time analysis of CF at Dy 2 Sn 2 O 7 /GO retained an adequate recovery level in vegetable samples that are desirable for practical applications and, thus, can generate the diminution of CF in the environmental contamination. Given the acceptable recovery level of CF, the Dy 2 Sn 2 O 7 /GO is a competent electrocatalyst for detecting toxic pesticides in real samples to avoid health issues.

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“…Generally, gardeners and farmers, simultaneously use of pesticides in many cultures. Detection of CA and FEN was separately performed using chromatography methods such as high-performance liquid chromatography [4], gas chromatography [5], fluorimetry [6] and competitive immunoassays [7] that are usually time consuming, expensive and complicated. Besides these traditional methods, electrochemical techniques have attracted great popularity because simple, cost-effective, high efficiency and without the need of dedicated laboratories.…”

Section: Introductionmentioning

confidence: 99%

Reduced graphene oxide decorated on Cu/CuO-Ag nanocomposite as a high-performance material for the construction of a non-enzymatic sensor: Application to the determination of carbaryl and fenamiphos pesticides

Hashemi

Karimian²,

Khoshsafar³

et al. 2019

Materials Science and Engineering: C

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A novel electrochemical sensor based on the reduced graphene oxide-Cu/CuO-Ag nanocomposite modified glassy carbon electrode (rGO/Cu/CuO-Ag/GCE) has been applied for the simultaneous analysis of carbaryl and fenamiphos as two important pesticides. The electrochemical behavior of carbaryl and fenamiphos at rGO/Cu/ CuO-Ag/GCE was studied by cyclic voltammetry and differential pulse voltammetry. The modified electrode exhibited two separated oxidation signals for the simultaneous determination of both carbaryl and fenamiphos with excellent sensitivity. The characteristics of the modified electrode were studied with transmission electron microscopy, X-ray diffraction and Fourier transform-infrared spectroscopy techniques. Under optimized conditions, the rGO/Cu/CuO-Ag/GCE detected carbaryl and fenamiphos with the wide linear ranges of 0.05-20 and 0.01-30 μM, and the detection limits were 0.005 and 0.003 μM, respectively. This developed electrochemical platform applied as a simple and cost-effective sensor for the detection of low levels of carbaryl and fenamiphos in fruit and vegetable samples successfully.

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Fluorimetric Determination of Carbamate Pesticides in Host-Guest Complexes

Cited by 8 publications

References 2 publications

Electrochemical nonenzymatic sensor based on CoO decorated reduced graphene oxide for the simultaneous determination of carbofuran and carbaryl in fruits and vegetables

Electrochemical nonenzymatic sensor based on CoO decorated reduced graphene oxide for the simultaneous determination of carbofuran and carbaryl in fruits and vegetables

Rational Design and Interlayer Effect of Dysprosium-Stannate Nanoplatelets Incorporated Graphene Oxide: A Versatile and Competent Electrocatalyst for Toxic Carbamate Pesticide Detection in Vegetables

Reduced graphene oxide decorated on Cu/CuO-Ag nanocomposite as a high-performance material for the construction of a non-enzymatic sensor: Application to the determination of carbaryl and fenamiphos pesticides

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