Determination of carbaryl in foods by solid-phase room-temperature phosphorimetry

Capitán-Vallvey, L.F.; Deheidel, M. K. A.; Avidad, Ramiro

doi:10.1007/s002160051079

Cited by 17 publications

(7 citation statements)

References 0 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…Designing a basic, rapid, and cheap analysis method for the detection of organophosphorus pesticides is of great importance. The traditional techniques for the detection of OPs are based on analytical methods such as spectrophotometry [ 4 ], spectrofluorimetry [ 5 ], infrared spectroscopy [ 6 ], photothermal [ 7 ], chemiluminescence [ 8 ], quartz crystal microbalance [ 9 ], mass spectrometry [ 10 ], and gas and/or liquid chromatography. Despite their high sensitivity, these methods have some disadvantages, such as long analysis times, as well as the need for expensive experimental instrumentation, trained personnel, and complex sample pretreatment.…”

Section: Introductionmentioning

confidence: 99%

Flexible, Low-Cost Sensor Based on Electrolyte Gated Carbon Nanotube Field Effect Transistor for Organo-Phosphate Detection

Bhatt

Joshi

Becherer

et al. 2017

Sensors

View full text Add to dashboard Cite

A flexible enzymatic acetylcholinesterase biosensor based on an electrolyte-gated carbon nanotube field effect transistor is demonstrated. The enzyme immobilization is done on a planar gold gate electrode using 3-mercapto propionic acid as the linker molecule. The sensor showed good sensing capability as a sensor for the neurotransmitter acetylcholine, with a sensitivity of 5.7 μA/decade, and demonstrated excellent specificity when tested against interfering analytes present in the body. As the flexible sensor is supposed to suffer mechanical deformations, the endurance of the sensor was measured by putting it under extensive mechanical stress. The enzymatic activity was inhibited by more than 70% when the phosphate-buffered saline (PBS) buffer was spiked with 5 mg/mL malathion (an organophosphate) solution. The biosensor was successfully challenged with tap water and strawberry juice, demonstrating its usefulness as an analytical tool for organophosphate detection.

show abstract

Section: Introductionmentioning

confidence: 99%

Flexible, Low-Cost Sensor Based on Electrolyte Gated Carbon Nanotube Field Effect Transistor for Organo-Phosphate Detection

Bhatt

Joshi

Becherer

et al. 2017

Sensors

View full text Add to dashboard Cite

show abstract

“…their concentrations. These include spectrophotometry [4,5], infrared spectroscopy [6], flow-injection chemiluminescence [7], fluorimetry [8], but mainly chromatographic techniques, such as liquid chromatography with ultraviolet [9], diode array [10], fluorescence spectrometry [11] and mass spectrometry [12] detection, are used. Due to the moderately high polarity and thermolability of carbaryl, LC is still the preferable technique for its determinations.…”

Section: Introductionmentioning

confidence: 99%

Determination of carbaryl in tomato “in natura” using an amperometric biosensor based on the inhibition of acetylcholinesterase activity

Caetano

Machado

2008

Sensors and Actuators B: Chemical

View full text Add to dashboard Cite

“…Although a great number of analytical methods have been proposed for its determination by different instrumental methods (Benson and Finocchiariaro, 1965;Argauer and Bontoyan, 1970;Argauer and Warthen, 1975;Larkin and Day, 1979;Pieper, 1979;Deberardinis and Wargin, 1982;Appaiah et al, 1982;Krause, 1985), very few using phosphorescence methodology have been proposed (Yansheng et al, 1994;Panadero et al, 1994;Segura Carretero et al, 1996;Capita ´n-Vallvey et al, 1998). Most of these methodologies need to be improved for their simplicity, sensitivity, and reliability.…”

Section: Introductionmentioning

confidence: 99%

HAI−RTP Determination of Carbaryl Pesticide in Different Irrigation Water Samples of South Spain

Segura‐Carretero

Cruces‐Blanco

Cañabate-Díaz

et al. 2000

J. Agric. Food Chem.

View full text Add to dashboard Cite

In this work, a widely used pesticide named carbaryl, present in numerous water supplies, has been determined by the so-called heavy atom induced room-temperature phosphorescence (HAI-RTP) methodology. A detailed study of numerous instrumental variables such as sensitivity, slits, decay time, and gate time, and those of experimental type such as heavy atoms, oxygen scavenger, temperature, buffer solutions, and organic solvents, have been carried out. The detection limit was 2.8 ng mL(-)(1) with a relative standard deviation of 2.12% at the 150 ng mL(-)(1) level. Spiked irrigation water samples taken from different places near agricultural fields gave mean percentage recoveries of 95.7%. The results obtained in this study indicate that the proposed method is suitable for the determination of residues of carbaryl pesticide in water samples with good reproducibility and sensitivity for the analysis of this compound being rapid and very simple for routine analysis.

show abstract

Determination of carbaryl in foods by solid-phase room-temperature phosphorimetry

Cited by 17 publications

References 0 publications

Flexible, Low-Cost Sensor Based on Electrolyte Gated Carbon Nanotube Field Effect Transistor for Organo-Phosphate Detection

Flexible, Low-Cost Sensor Based on Electrolyte Gated Carbon Nanotube Field Effect Transistor for Organo-Phosphate Detection

Determination of carbaryl in tomato “in natura” using an amperometric biosensor based on the inhibition of acetylcholinesterase activity

HAI−RTP Determination of Carbaryl Pesticide in Different Irrigation Water Samples of South Spain

Contact Info

Product

Resources

About