Determination of Mesotrione Residues and Metabolites in Crops, Soil, and Water by Liquid Chromatography with Fluorescence Detection

Alferness, Philip L.; Wiebe, Lawrence

doi:10.1021/jf011696y

Cited by 70 publications

(47 citation statements)

References 6 publications

Supporting

Mentioning

Contrasting

Unclassified

Order By: Relevance

“…20 The conventional methods for detecting and quantifying mesotrione are usually liquid chromatography coupled with UV spectroscopy, 24 mass spectrometry, 25 tandem mass spectrometry, 26 or°uorescence spectroscopy. 27 The high sensitivity of such methods, with detection limits at the level of nanograms per liter, 28 can be compared to the sensitivity of the cantilever described in this study, which detected target molecules at the level of nanograms per mL. A detection method based on AFM cantilever could enable analysis even when the amounts of available liquid sample are very small.…”

Section: Introductionmentioning

confidence: 96%

Nanomechanical Cantilever-Based Sensor: An Efficient Tool to Measure the Binding Between the Herbicide Mesotrione and 4-Hydroxyphenylpyruvate Dioxygenase

Rodrigues

Ierich

Andrade

et al. 2017

NANO

View full text Add to dashboard Cite

Nanomechanical biosensors based on atomic force microscopy (AFM) cantilevers have garnered considerable attention. AFM cantilevers are devices that can detect a target either via a surface functionalization process based on immobilization through molecular adsorption, or through the selective chemical binding of a speci¯c molecule, transforming the device into a speci¯c biosensor. In this study, we demonstrate that functionalized AFM cantilevers could be used, in a process involving self-assembling layers, to create a homogeneous surface layer of the widely used herbicide mesotrione. Controlled experiments to evaluate its detection were performed, and binding between mesotrione and its target molecule, 4-hydroxyphenylpyruvate dioxygenase (HPPD), was evaluated using de°ection curves of functionalized cantilevers interacting with mesotrione. The cantilevers worked as nanomechanical sensors inside a°uid cell device, under di®erent ¶ Corresponding author. 1750079-1NANO: Brief Reports and Reviews Vol. 12, No. 7 (2017) concentrations of HPPD diluted in PBS. After evaluating increasing concentrations of HPPD, the de°ection curves showed a clear, dose-dependent pattern. The homogeneous dispersion of mesotrione on the cantilevers was assessed by confocal microscopy, and this corroborated the functionalization method. Thus, the results obtained by this functionalized cantilever presented a high e±ciency in detecting binding between HPPD and mesotrione molecules at concentrations as low as 17 ng mL À1 . In this way, as a preliminary step for a future environmental contaminants nanosensor development, the described detection method showed a suitable capability for molecular recognition at the nanoscale.

show abstract

Section: Introductionmentioning

confidence: 96%

Nanomechanical Cantilever-Based Sensor: An Efficient Tool to Measure the Binding Between the Herbicide Mesotrione and 4-Hydroxyphenylpyruvate Dioxygenase

Rodrigues

Ierich

Andrade

et al. 2017

NANO

View full text Add to dashboard Cite

show abstract

“…Alferness and Wiebe (2002) used liquid chromatography with Fluorescence Detection to detect the mesotrione and its metabolities in crops, soil, and water. The crop and soil extracts, and water, were cleaned up using reverse-phase HPLC with mesotrione and 4-methylsulfonyl-2-nitrobenzoic acid (MNBA) isolated using a fraction collector.…”

Section: Resultsmentioning

confidence: 99%

“…Alferness and Wiebe (2002) established a method to determine the residue of mesotrione and its metabolites in crops (included corn grain, fodder, forage and sugar cane), soil, and water by liquid chromatography with fluorescence detection. Pang et al (2007) established a method to detect the residue of mesotrione in soil using high performance liquid chromatography with the ultraviolet detector (HPLC-UVD).…”

mentioning

confidence: 99%

Dissipation and Residues of the Herbicide Mesotrione in Maize and Soil in Open Field

Chen

et al. 2012

Bull Environ Contam Toxicol

View full text Add to dashboard Cite

The purpose of this article was to establish a simple residue analysis method for mesotrione in maize using high performance liquid chromatography tandem mass spectrometry. The method was then used to study the dissipation and residues in maize seedling and soil. The half-lives of mesotrione in maize plants and soil were 1.37, 4.31 days in Beijing, and 0.97, 1.80 days in Shandong, respectively. The ultimate residues of mesotrione were undetected in soil, maize grain and stem at the harvest time, suggesting that mesotrione could be safely used in maize crops with an appropriate dosage and application.

show abstract

“…However, mixtures of herbicides can alter sorption as well as microbial degradation rates, which lead to alterations in the rates of leaching [6]. This behavior help explaining observations of mesotrione in surface water and groundwater [7][8][9][10].…”

Section: Introductionmentioning

confidence: 90%

“…Alferness and Wiebe [7] detected the presence of mesotrione and two metabolites (4-methylsulfonyl-2-nitrobenzoic acid-MNBA and 2-amino-4-methylsulphonylbenzoic acid-AMBA) in groundwater, surface seawater and rivers.…”

Section: Leachate Mesotrione Alone and In A Mixturementioning

confidence: 99%

Assessment of Mesotrione Leaching Applied Alone and Mixed in Seven Tropical Soils Columns under Laboratory Conditions

et al. 2017

View full text Add to dashboard Cite

Herbicide leaching is influenced by soil physical and chemical properties as well as the prevailing climatic conditions. However, little is known about leaching of mixture of herbicides in the soil, especially in tropical regions like Brazil. The objective of this study is to evaluate the leaching of 14 C-mesotrione (cyclohexane-2-14 C-mesotrione) alone and in a mixture with S-metolachlor and terbuthylazine in seven tropical soil columns under laboratory conditions. These soils represented a wide range of properties with varying textures, cation exchange capacity (44 to 154 mmol c kg −1 ), pH (6.0 to 7.7), organic carbon content (0.58 to 27.32 g kg −1 ) and clay mineral contents (50 to 605 g kg −1 ), which are typical of tropical soils. Mesotrione residues were observed across all soil column layers (0-30 cm) in all evaluated soils by simulating 200 mm of water for 48 h. The application of mesotrione, alone or in a mixture, does not influence the leaching of this herbicide. Leaching of mesotrione ranged from low (up 15 cm) to very high (up 30 cm and leachate) in the tropical soils and may pose a potential groundwater contamination risk. In sand and loamy sand soil, the mesotrione was quantified in the leachate at all sampling times as above 80% of the amount initially applied. Thus, mesotrione application without the prior knowledge of the soil physical and chemical properties can result in inefficient weed control on field condition due to high leaching potentials.

show abstract

Determination of Mesotrione Residues and Metabolites in Crops, Soil, and Water by Liquid Chromatography with Fluorescence Detection

Cited by 70 publications

References 6 publications

Nanomechanical Cantilever-Based Sensor: An Efficient Tool to Measure the Binding Between the Herbicide Mesotrione and 4-Hydroxyphenylpyruvate Dioxygenase

Nanomechanical Cantilever-Based Sensor: An Efficient Tool to Measure the Binding Between the Herbicide Mesotrione and 4-Hydroxyphenylpyruvate Dioxygenase

Dissipation and Residues of the Herbicide Mesotrione in Maize and Soil in Open Field

Assessment of Mesotrione Leaching Applied Alone and Mixed in Seven Tropical Soils Columns under Laboratory Conditions

Contact Info

Product

Resources

About