Headspace solid-phase microextraction using a dodecylsulfate-doped polypyrrole film coupled to ion mobility spectrometry for the simultaneous determination of atrazine and ametryn in soil and water samples
A simple and rapid headspace solid-phase microextraction (HS-SPME) based method is presented for the simultaneous determination of atrazine and ametryn in soil and water samples by ion mobility spectr...Read More
A novel s-triazine-mineralizing bacterium-Nocardioides sp. strain DN36-was isolated from paddy field soil treated with ring-U-(14)C-labeled simetryn ([(14)C]simetryn) in a model paddy ecosystem (micro...Read More
Atrazine chlorohydrolase, TrzN (triazine hydrolase or atrazine chlorohydrolase 2), initiates bacterial metabolism of the herbicide atrazine by hydrolytic displacement of a chlorine substituent from th...Read More
Poly(ε-caprolactone)nanocapsules as carrier systems for herbicides: physico-chemical characterization and genotoxicity evaluation.
The toxicity of herbicides used in agriculture is influenced by their chemical stability, solubility, bioavailability, photodecomposition, and soil sorption. Possible solutions designed to minimize to...Read More
Coordination polymer adsorbent for matrix solid-phase dispersion extraction of pesticides during analysis of dehydrated Hyptis pectinata medicinal plant by GC/MS
The coordination polymer [Zn(BDC)(H"2O)"2]"n was tested for extraction of pyrimethanil, ametryn, dichlofluanid, tetraconazole, flumetralin, kresoxim-methyl and tebuconazole from the med...Read More
Preparation and photocatalytical performance of TiO2:SiO2 nanocomposites produced by the polymeric precursors method.
Anatase TiO2 is a promising photocatalyst due to its chemical stability, non-toxic characteristics, notable UV light absorption as well as photo-corrosion resistance and oxidative properties. Surface ...Read More
Emergent treatment of source water polluted by representative herbicide molinate and ametryn was researched. The results indicate that activated carbon adsorption and prechlorination could achieve hig...Read More
Quantification of triazine herbicides in soil by microwave-assisted extraction and high-performance liquid chromatography.
A method for the determination of herbicides residues, triazine (atrazine, metribuzin, ametryn, and terbutryn), in soil samples with high-performance liquid chromatography (HPLC)-UV detection is descr...Read More
A new selective liquid membrane extraction method for the determination of basic herbicides in agro-processed fruit juices and Ethiopian honey wine (Tej) samples.
Supported liquid membrane (SLM) extraction was optimised for trace extraction and enrichment of selected triazine herbicides from a variety of agro-processed fruit juices and Ethiopian honey wine (Tej...Read More
Quantitative analysis of triazine herbicides in environmental samples by using high performance liquid chromatography and diode array detection combined with second-order calibration based on an alternating penalty trilinear decomposition algorithm
A novel application of second-order calibration method based on an alternating penalty trilinear decomposition (APTLD) algorithm is presented to treat the data from high performance liquid chromatogra...Read More
Sorption of two s-triazines, atrazine and ametryn, by carbonatic soils, Histosols, Spodosols and Oxisols was examined. Linear isotherms were observed and sorption coefficients (K(d)) of both compounds...Read More
Model development and parameter estimation for a hybrid submerged membrane bioreactor treating Ametryn
A lab-scale membrane bioreactor (MBR) was used to remove Ametryn from synthetic wastewater. It was found that concentrations of MLSS and extra-cellular polymeric substances (EPS) in MBR mixed liquor f...Read More
Impact of herbicide Ametryn on microbial communities in mixed liquor of a membrane bioreactor (MBR).
Ametryn, which is a second generation herbicide, was introduced to a lab-scale MBR at a concentration of 1mg/L and a 20-40% removal was observed at HRT ranging from 7.8 to 15.6h for an average influen...Read More
Determination of ametryn in sugarcane and ametryn-atrazine herbicide formulations using spectrophotometric method.
A sensitive spectrophotometric method has been developed for determination of ametryn in agricultural samples. The proposed method was based on reaction with pyridine and further coupling with sulfani...Read More
Ecological risk assessments are, in part, based on results of toxicity tests conducted under standard exposure conditions. Global climate change will have a wide range of effects on estuarine habitats...Read More
Controlled release system for ametryn using polymer microspheres: Preparation, characterization and release kinetics in water
The purpose of this work was to develop a modified release system for the herbicide ametryn by encapsulating the active substance in biodegradable polymer microparticles produced using the polymers po...Read More
Assessment of ametryn contamination in river water, river sediment, and mollusk bivalves in S?o Paulo state, Brazil.
S?o Paulo state, Brazil, is one of the main areas of sugar cane agriculture in the world. Herbicides, in particular, ametryn, are extensively used in this extensive area, which implies that this herbi...Read More
We report a case of fatal intoxication caused by the ingestion of the herbicide Gesapax (an emulsion type), which consists of 25% ametryn (ametryne, ametrin, ametrine, and ametrina), and 75% other com...Read More
Optimization of solid-phase extraction using developed modern sorbent for trace determination of ametryn in environmental matrices
In recent years, there has been a significant increase in molecularly imprinted solid-phase extraction (MISPE) technique for the purification and clean-up of environmental samples. In this study, soli...Read More
The chemical oxidation of the herbicide ametryn was investigated by aqueous chlorination between pH 4 and 10 at a temperature of 25^oC. Ametryn was found to react very rapidly with aqueous chlorine. T...Read More
Preparation and binding study of solid-phase microextraction fiber on the basis of ametryn-imprinted polymer
A monolithic ametryn molecular-imprinted polymer based on a simple polymerization method was fabricated for use as new solid-phase microextraction (SPME) fiber, which can be coupled with GC and GC/MS ...Read More
Agricultural discharge of herbicides to the Great Barrier Reef (GBR) poses significant threat to the marine ecosystem. This study evaluates the performance of a hybrid treatment system consists of a m...Read More
Evaluation of a new method for chemical coating of aluminum wire with molecularly imprinted polymer layer. Application for the fabrication of triazines selective solid-phase microextraction fiber
A new solid-phase microextraction (SPME) fiber is fabricated through ultra violet irradiation polymerization of ametryn-molecularly imprinted polymer on the surface of anodized-silylated aluminum wire...Read More
High performance gold nanorods and silver nanocubes in surface-enhanced Raman spectroscopy of pesticides.
The behavior of Au nanorods and Ag nanocubes as analytical sensors was evaluated for three different classes of herbicides. The use of such anisotropic nanoparticles in surface-enhanced Raman scatteri...Read More
Ultraviolet (UV) irradiation (253.7nm) in the presence of hydrogen peroxide (H"2O"2) was used to decompose aqueous ametryn. The concentrations of ametryn were measured with time under variou...Read More