Gel-surface enhanced fluorescence sensing system coupled to a continuous-flow assembly for simultaneous monitoring of benomyl and carbendazim

Reyes, Joan; Ortega‐Barrales, P.; Dı́az, A Molina

doi:10.1016/s0003-2670(03)00818-3

Cited by 35 publications

(7 citation statements)

References 36 publications

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“…A novel, versatile and sensitive continuous-flow on-line solid phase fluorescence based system is proposed for the simultaneous determination of benomyl and carbendazim [77]. The continuous-flow system is based on the on-line preconcentration and resolution of the pesticides on a solid sensing zone, followed by the sequential measure of their native fluorescence, monitored at 235/306 and 293/398nm (λ exc /λ em for carbendazim and benomyl, respectively), and later desorption of these analytes (from the flow-through cell filled with C 18 silica gel) using aqueous methanol mixtures as carrier and eluent solutions.…”

Section: Fluorescencementioning

confidence: 99%

Recent Development in Optical Chemical Sensors Coupling with Flow Injection Analysis

Ojeda

Rojas

2006

Sensors

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Abstract:Optical techniques for chemical analysis are well established and sensors based on these techniques are now attracting considerable attention because of their importance in applications such as environmental monitoring, biomedical sensing, and industrial process control. On the other hand, flow injection analysis (FIA) is advisable for the rapid analysis of microliter volume samples and can be interfaced directly to the chemical process. The FIA has become a widespread automatic analytical method for more reasons; mainly due to the simplicity and low cost of the setups, their versatility, and ease of assembling. In this paper, an overview of flow injection determinations by using optical chemical sensors is provided, and instrumentation, sensor design, and applications are discussed. This work summarizes the most relevant manuscripts from 1980 to date referred to analysis using optical chemical sensors in FIA.

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Section: Fluorescencementioning

confidence: 99%

Recent Development in Optical Chemical Sensors Coupling with Flow Injection Analysis

Ojeda

Rojas

2006

Sensors

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“…There are various analytical methods for the analysis of BN in different samples: Liquid chromatography [1,2], fluorimetry [3,4], fluorescence polarization [5], and modulated anisotropy fluorescence [6] have been reported in the literature. However, in order to determine trace amounts of the fungicide, development of novel methods with higher sensitivities, precision, and accuracy is necessary.…”

Section: Introductionmentioning

confidence: 99%

Liquid chromatographic determination of benomyl in water samples after dispersive liquid–liquid microextraction

Farhadi¹,

Farajzadeh

Matin

2009

J of Separation Science

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A dispersive liquid-liquid microextraction (DLLME) method combined with solvolysis reaction for extraction of the carbamate fungicide benomyl as carbendazim from water samples is described. The method is based on the extraction of benomyl from acidified sample solution and its conversion into carbendazim via solvolysis reaction with DMF as organic solvent. The proposed DLLME method was followed by HPLC with fluorimetric detection for determination of benomyl. The proposed method has good linearity (0.998) with wide linear dynamic range (0.01-25 mg/L) and low detection limit (0.0033 mg/L), making it suitable for benomyl determination in water samples.

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“…So far, a variety of available methods have been developed for the detection of carbendazim, including fluorescence analysis, [11] capillary electrophoresis, [12] spectrophotometry, [13] and liquid chromatography. [14] However, these analyses methods have some shortcomings, such as complex pretreatment procedures for materials containing detection substances, long detection time, complex operation procedures, and expensive equipment.…”

Section: Introductionmentioning

confidence: 99%

Electrochemical Sensors Based on Reduced Holey Graphene for Detection of Carbendazim

Yang

Chen

Wang

et al. 2021

Physica Status Solidi (a)

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Reduced holey graphene (rHG) has a large number of nanopores and a 3D porous network. As the pore size of the in-plane hole becomes larger, the defect density and the number of edges of rHG increase, which is conducive to accelerating electron transfer and exhibiting excellent electrochemical performance. The electrochemical sensor based on rHG successfully detects carbendazim in the concentration range of 0.1À100 μM with low detection limit (13.14 nM) and the sensitivity reaching to 22.541 μA μM À1 cm À2 . Furthermore, the sensor exhibits outstanding anti-interference, stability, and satisfactory recoveries in real samples.

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Gel-surface enhanced fluorescence sensing system coupled to a continuous-flow assembly for simultaneous monitoring of benomyl and carbendazim

Cited by 35 publications

References 36 publications

Recent Development in Optical Chemical Sensors Coupling with Flow Injection Analysis

Recent Development in Optical Chemical Sensors Coupling with Flow Injection Analysis

Liquid chromatographic determination of benomyl in water samples after dispersive liquid–liquid microextraction

Electrochemical Sensors Based on Reduced Holey Graphene for Detection of Carbendazim

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