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Journal of Hazardous Materials Aug 2008A study was conducted on the adsorption kinetics of diuron and amitrole from aqueous solutions on activated carbons of different particle sizes and on an activated...
A study was conducted on the adsorption kinetics of diuron and amitrole from aqueous solutions on activated carbons of different particle sizes and on an activated carbon fiber. Different kinetic models were applied to the experimental results obtained. A pseudo-second-order rate equation fitted the adsorption kinetics data better than a pseudo-first-order rate equation. Amitrole showed faster adsorption kinetics compared with diuron because of the smaller size of the former herbicide, despite its lower driving force for adsorption. Both reaction rate constants increased when the particle size decreased. The activated carbon fiber and the activated carbon of smallest particle size (0.03 mm) showed similar adsorption kinetics. The intraparticle diffusion rate constant increased with higher initial concentration of herbicides in solution and with lower particle size of the adsorbent. This is because the rise in initial concentration increased the amount adsorbed at equilibrium, and the reduction in particle size increased the number of collisions between adsorbate and adsorbent particles. Demineralization of the activated carbon with particle size of 0.5mm had practically no effect on the adsorption kinetics.
Topics: Adsorption; Amitrole; Carbon; Diuron; Herbicides; Kinetics; Solutions; Water
PubMed: 18241982
DOI: 10.1016/j.jhazmat.2007.12.043 -
Molecular Diversity Feb 20221,2,4-Triazole-containing scaffolds are unique heterocyclic compounds present in an array of pharmaceuticals and biologically important compounds used in the... (Review)
Review
1,2,4-Triazole-containing scaffolds are unique heterocyclic compounds present in an array of pharmaceuticals and biologically important compounds used in the drug-discovery studies against cancer cells, microbes, and various types of disease in the human body. This review article summarizes the pharmacological significance of the 1,2,4-triazole-containing scaffolds and highlights the latest strategies for the synthesis of these privileged scaffolds using 3-amino-1,2,4-triazole. This review stimulates further research to find new and efficient methodologies for accessing new 1,2,4-triazole-containing scaffolds which would be very useful for the discover of new drug candidates.
Topics: Amitrole; Heterocyclic Compounds; Humans; Triazoles
PubMed: 33608844
DOI: 10.1007/s11030-021-10197-4 -
Journal of Chromatography. A Dec 2005In this paper, capillary zone electrophoresis with amperometric detection (CZE-AD) was first applied to the simultaneous separation and determination of amitrole and...
In this paper, capillary zone electrophoresis with amperometric detection (CZE-AD) was first applied to the simultaneous separation and determination of amitrole and urazole in water samples. A simple end-column electrochemical detector was used in combination with a commercially available capillary electrophoresis instrument with UV detection. The effects of several important factors were investigated to find optimum conditions. A carbon disk electrode was used as working electrode. Separation and determination of these compounds in water samples were performed in 0.030 mol l(-1) acetate buffers at pH 4.5, 25 kV as separation voltage and the samples were introduced by hydrodynamic mode for 1.5 s. Most of the studies realized showed that the direct electrochemical detection is more sensitive and selective than UV detection. Under the optimum conditions, excellent linearity was observed between peak amperometric signal and analyte concentrations in the range of 0.19-1.35 mg l(-1) for amitrole and 0.20-1.62 mg l(-1) for urazole. The detection limits were 63 and 68 microg l(-1) for amitrole and urazole, respectively. The utility of this method was demonstrated by monitoring water samples, and the assay results were satisfactory. The detection limits using a previous preconcentration step for amitrole and urazole in spiked mineral water samples were 0.6 and 1.0 microg l(-1) for amitrole and urazole, respectively.
Topics: Amitrole; Calibration; Electrochemistry; Electrophoresis, Capillary; Reproducibility of Results; Sensitivity and Specificity; Spectrophotometry, Ultraviolet; Triazoles; Water Pollutants, Chemical
PubMed: 16330280
DOI: 10.1016/j.chroma.2005.08.087 -
Soins. Psychiatrie Feb 1984
Topics: Amitriptyline; Humans
PubMed: 6563730
DOI: No ID Found -
Bulletin of Environmental Contamination... Jun 2013A passive sampler device suitable for monitoring of residues of the hydrophilic ionic herbicide amitrole in irrigation waterways was developed. Uptake of amitrole on...
A passive sampler device suitable for monitoring of residues of the hydrophilic ionic herbicide amitrole in irrigation waterways was developed. Uptake of amitrole on styrenedivinylbenzene-reverse phase sulfonated Empore™ disks was linear and proportional to its water concentration over the range of 1-10 μg/L with a sampling rate of 23.1 mL/day under laboratory flow-through conditions. Performance of the sampler was evaluated by deployment in an agricultural irrigation drain for 10 days. The amount of amitrole adsorbed by the passive samplers compared well with the cumulative mean water concentrations calculated from daily spot samplings of the drain water.
Topics: Agricultural Irrigation; Amitrole; Calibration; Pesticide Residues; Reproducibility of Results; Water Pollutants, Chemical
PubMed: 23525697
DOI: 10.1007/s00128-013-0983-x -
Chest Apr 1992Amitrole-containing herbicides are commonly used by home and cottage owners for spraying grass. They are manufactured and distributed in the United States, Canada and...
Amitrole-containing herbicides are commonly used by home and cottage owners for spraying grass. They are manufactured and distributed in the United States, Canada and throughout the world by several pharmaceutical/chemical industries under many different trade names, such as Amitrole-T, Amizol, Azolan, Cytrol and Weedazol. They have not been previously associated with pulmonary toxicity in man or laboratory animals. We describe the first case in which inhalation of amitrole herbicide resulted in diffuse, asymmetric, severe alveolar damage, which was reversed after treatment with high-dose corticosteroids.
Topics: Aged; Amitrole; Biopsy; Bronchoscopy; Humans; Lung; Lung Diseases; Male; Pulmonary Alveoli; Radiography
PubMed: 1555447
DOI: 10.1378/chest.101.4.1174 -
The Medical Letter on Drugs and... Dec 2007
Topics: Amitriptyline; Delayed-Action Preparations; Drug Interactions; Humans; Muscle Relaxants, Central; Spasm; Treatment Outcome
PubMed: 18084153
DOI: No ID Found -
Lancet (London, England) Dec 1972
Topics: Amitriptyline; Arrhythmias, Cardiac; Heart; Humans; Male; Middle Aged
PubMed: 4117629
DOI: 10.1016/s0140-6736(72)92631-1 -
Lancet (London, England) Oct 1972
Topics: Amitriptyline; Death, Sudden; Heart; Heart Diseases; Humans
PubMed: 4116169
DOI: 10.1016/s0140-6736(72)92049-1 -
The Medical Journal of Australia Jul 1971
Clinical Trial
Topics: Acetylcholine; Adolescent; Adult; Amitriptyline; Animals; Asthma; Clinical Trials as Topic; Guinea Pigs; Histamine Antagonists; Humans; Middle Aged; Serotonin Antagonists; Spirometry
PubMed: 4937682
DOI: 10.5694/j.1326-5377.1971.tb50396.x