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Showing 31-60 of 2550 results for "triazines" within Papers
Monique M Nguyen et al.
Molecules (Basel, Switzerland), 20(6), 11236-11256 (2015-06-23)
Countless hours of research and studies on triazine, phosphonate, and their combination have provided insightful information into their flame retardant properties on polymeric systems. However, a limited number of studies shed light on the mechanism of flame retardancy of their
Guillaume L Erny et al.
Journal of chromatography. A, 1306, 104-108 (2013-08-07)
In this work, humic substances (HS) immobilized, as a thin layer or as aggregates, on silica gel were tested as material for solid phase extraction. Some triazines (simazine, atrazine, therbutylazine, atrazine-desethyl-desisopropyl-2-hydroxy, ametryn and terbutryn), have been selected as test analytes
Roman G Kuperman et al.
Environmental toxicology and chemistry, 32(11), 2648-2659 (2013-08-21)
The authors investigated individual toxicities of 2,4,6-trinitrotoluene (TNT) and hexahydro-1,3,5-trinitro-1,3,5-triazine (RDX) to the potworm Enchytraeus crypticus using the enchytraeid reproduction test. Studies were designed to generate ecotoxicological benchmarks that can be used for developing ecological soil-screening levels for ecological risk
Fengnian Zhao et al.
Journal of chromatography. A, 1515, 17-22 (2017-08-10)
A selective, environmentally friendly, and cost-effective sample extraction method based on a combination of subcritical water extraction (SWE) and molecularly imprinted solid-phase extraction (MISPE) was developed for the determination of eight triazine herbicides in soil samples by liquid chromatography-tandem mass
Congmin Liu et al.
Chemosphere, 190, 103-113 (2017-10-07)
A rapid, sensitive, and reliable ultra-fast liquid chromatography combined with electrospray ionization tandem mass spectrometry (UFLC-ESI-MS/MS) method was established and applied to simultaneous determination of 31 triazine herbicides and their metabolites in multiple medicinal parts of traditional Chinese medicines (TCMs).
N Rodríguez-González et al.
Talanta, 121, 194-198 (2014-03-13)
A method using dual process columns of Matrix Solid Phase Dispersion (MSPD) and Solid Phase Extraction (SPE) has been developed for extracting and cleaning-up of nine triazine herbicides (ametryn, atrazine, cyanazine, prometryn, propazine, simazine, simetryn, terbuthylazine and terbutryn) in seaweed
Szczepan Mogilski et al.
Inflammation research : official journal of the European Histamine Research Society ... [et al.], 66(1), 79-95 (2016-10-22)
Histamine H We used mice and rats in the in vivo tests. We also used murine RAW 264.7 cells and isolated guinea-pig ileum in in vitro test. In the in vivo tests, animals were pre-treated with the increasing doses of
Laura Carretta et al.
Journal of environmental science and health. Part. B, Pesticides, food contaminants, and agricultural wastes, 54(3), 187-195 (2019-01-03)
This study evaluates the effect of sewage amendment (SA) on the dissipation of terbuthylazine, its degradation compound desethyl-terbuthylazine, and S-metolachlor in the soil. The experiment was conducted at Padua Experimental Farm (Italy). Herbicides dissipation was evaluated in soils differently fertilized
L Guzzella et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 57(1), 139-144 (2008-01-15)
A MIP (molecularly imprinted polymer) was synthesized and evaluated for its use as sorbent for solid phase extraction (MISPE) of common used triazines (atrazine and terbuthylazine) and their widespread metabolites (desethyl-atrazine and desethyl-terbuthylazine) in water samples. MIP was produced by
Dorota Łażewska et al.
European journal of medicinal chemistry, 83, 534-546 (2014-07-06)
A series of novel 2-amino-4-(4-methylpiperazin-1-yl)-1,3,5-triazine derivatives with different aryl substituents in the 6-position was designed, synthesized and evaluated for histamine H4 receptor (H4R) affinity in Sf9 cells expressing human H4R co-expressed with G-protein subunits. Triazine derivative 8 with a 6-(p-chlorophenyl)
Erin D Anderson et al.
Journal of the American Chemical Society, 133(31), 12285-12292 (2011-07-09)
A systematic study of the inverse electron demand Diels-Alder reactions of 1,2,3-triazines is disclosed, including an examination of the impact of a C5 substituent. Such substituents were found to exhibit a remarkable impact on the cycloaddition reactivity of the 1,2,3-triazine
Nan Zou et al.
Journal of chromatography. A, 1457, 14-21 (2016-07-03)
An analytical method based on stir bar sorptive extraction (SBSE) coupled with pulse glow discharge-ion mobility spectrometry (PGD-IMS) was developed for analysis of three triazine pesticide residues in water and soil samples. An injection port with sealing device and stir
Lara Sassine et al.
Environmental science and pollution research international, 24(8), 6878-6888 (2016-07-28)
At present, some triazine herbicides occurrence in European groundwater, 13 years after their use ban in the European Union, remains of great concern and raises the question of their persistence in groundwater systems due to several factors such as storage and
Sijie Liu et al.
Chemical biology & drug design, 84(2), 169-174 (2014-06-04)
New dual binding site acetylcholinesterase (AChE) inhibitors have been designed and synthesized as a new drug candidate for the treatment of Alzheimer's disease (AD) through the binding to both catalytic and peripheral sites of the enzyme. Therefore, a series of
Lijie Wu et al.
Journal of separation science, 38(17), 2953-2959 (2015-06-18)
Microwave-assisted ionic-liquid-impregnated resin solid-liquid extraction was developed for the extraction of triazine herbicides, including cyanazine, metribuzin, desmetryn, secbumeton, terbumeton, terbuthylazine, dimethametryn, and dipropetryn in honey samples. The ionic-liquid-impregnated resin was prepared by immobilizing 1-hexyl-3-methylimidazolium hexafluorophosphate in the microspores of resin.
Tamer Nasr et al.
European journal of medicinal chemistry, 141, 603-614 (2017-11-07)
Design and synthesis of new anticancer scaffolds; pyrazolo[3,4-d][1,2,3]triazine derivatives, is a promising solution to overcome drug resistance problem. A series of (E)-2-cyano-N-(aryl)-3-methylthio-3-(substituted-amino)acrylamides 3a-e was synthesized and transformed to the 3-aminopyrazole derivatives 4a-e which were then transformed to the target pyrazolotriazinones
Yanxiao Jiang et al.
Journal of chromatography. A, 1638, 461887-461887 (2021-01-22)
In the presented work, MIL-101(Cr) and chitosan were directly embedded on the skeleton of melamine sponge material using a simple and environmentally friendly method. Chitosan acts not only as an adhesive during the preparation of functionalized sponges, but also as
Kai Hu et al.
Talanta, 130, 63-70 (2014-08-28)
A new stationary phase for high-performance liquid chromatography was prepared by covalently bonding a V-shape cage heteroatom-bridged calixarene onto silica gel using 3-aminopropyltriethoxysilane as coupling reagent. The structure of the new material was characterized by infrared spectroscopy, elemental analysis and
N Rodríguez-González et al.
Food chemistry, 173, 391-396 (2014-12-04)
A method based on Matrix Solid Phase Dispersion (MSPD) for determination of nine triazines in mussels has been optimised in terms of the sorbents used for extracting and cleaning-up. Two dispersing agents: C18 and florisil, and eight cleanup co-sorbents: florisil
R Carabias-Martínez et al.
Journal of chromatography. A, 1085(2), 199-206 (2005-08-19)
A molecularly imprinted polymer (MIP) obtained by precipitation polymerisation using propazine as template has been employed as sorbent for the solid phase extraction of triazines and some of their hydroxylated and dealkylated metabolites from river water. Three configurations were studied:
Hriday Bera et al.
Chemical biology & drug design, 82(3), 351-360 (2013-06-14)
In our lead finding program, a series of 1,2,4-triazolo[1,5-a][1,3,5]triazine derivatives were synthesized, and their in vitro thymidine phosphorylase inhibitory potential was explored. Among the different derivatives, compounds having keto group (C = O) at C7 and thioketo group (C = S) at C5 positions
Habib Bagheri et al.
Journal of chromatography. A, 1434, 19-28 (2016-01-27)
In the present work, a new micro-solid phase extraction (μ-SPE) sorbent as an extracting medium based on core-shell nanofibers was synthesized by electrospinning. The core-shell nanofibers of polyvinylpyrrolidone-Polybutylene terephthalate/polypyrrole (PVP-PBT/PPy) were electrospun and subsequently, modified hollow nanofibers were prepared by
Mona Saleh et al.
Bioorganic & medicinal chemistry letters, 20(3), 945-949 (2010-01-08)
A series of 2-fluorophenyl-4,6-disubstituted [1,3,5]triazines (1) and (2) were synthesized and evaluated for their antimicrobial activity against three representative gram-positive bacteria and two fungi. The structure-activity relationship (SAR) demonstrates that the 3- or 4-fluorophenyl component attached directly to the triazine
Wei-chun Yang et al.
Journal of environmental sciences (China), 15(4), 443-448 (2003-09-17)
Adsorption of atrazine, prometryne and prometon was determined on six soils with different physical and chemical properties. The adsorption isotherms of three herbicides could well fit Freundlich equation. On all of six soils, adsorption of herbicides increased in the order:
C Ernst et al.
Applied microbiology and biotechnology, 42(5), 763-768 (1995-01-01)
A bacterium utilizing 2-chloro-4,6-diamino-s-triazine (CAAT) as sole nitrogen source was isolated under a N2-free atmosphere and identified as Klebsiella pneumoniae. Concomitant to CAAT degradation the protein content increased and chloride was released into the medium. Under air and a N2-atmosphere
Yolanda Moliner-Martínez et al.
Analytical and bioanalytical chemistry, 407(5), 1485-1497 (2014-12-17)
This paper describes a new method for the determination of polar triazines, including some degradation products, which combines online in-tube solid-phase microextraction (IT-SPME) and capillary liquid chromatography with UV-diode array detection (DAD). Different extractive coatings have been evaluated for IT-SPME
Anupam G Banerjee et al.
European journal of medicinal chemistry, 101, 81-95 (2015-06-29)
A series of triazin-3(2H)-one derivatives bearing 1,3,4-oxadiazole (4a-4o) were synthesized, characterized and evaluated for anti-inflammatory and analgesic activities. Preliminary in vitro anti-inflammatory activity was assessed using an albumin denaturation assay. The promising compounds were further evaluated in acute, sub-chronic and chronic
Verónica Lizano-Fallas et al.
Chemosphere, 182, 106-113 (2017-05-12)
Biopurification systems constitute a biological approach for the treatment of pesticide-containing wastewaters produced in agricultural activities, and contain an active core called biomixture. This work evaluated the performance of a biomixture to remove and detoxify a combination of three triazine
S Frías et al.
Journal of chromatography. A, 1007(1-2), 127-135 (2003-08-20)
A procedure based on solid-phase microextraction (SPME) and gas chromatography-mass spectrometry, operating in the chemical ionisation mode, was developed and optimised in order to determine 10 triazines in water samples. Five different SPME fibers available for analysis [polydimethylsiloxane (PDMS) 100
Sylwia Sudoł et al.
International journal of molecular sciences, 22(19) (2021-10-14)
Among the serotonin receptors, one of the most recently discovered 5-HT6 subtype is an important protein target and its ligands may play a key role in the innovative treatment of cognitive disorders. However, none of its selective ligands have reached
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