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Haiyan Xu et al.
Applied and environmental microbiology, 73(23), 7759-7762 (2007-10-16)
The rates of metabolism of Sudan I and II and Para Red by human intestinal microflora were high compared to those of Sudan III and IV under anaerobic conditions. Metabolites of the dyes were identified as aniline, 2,4-dimethylaniline, o-toluidine, and
O Osano et al.
Archives of environmental contamination and toxicology, 43(1), 42-49 (2002-06-05)
Developmental effects of amitraz (acaricide), its metabolite (2,4-dimethylaniline), and paraquat (herbicide) on embryos of a nontarget organism, Xenopus laevis, were investigated. Following the standard protocol of the American Society for Testing and Materials (ASTM), the experiments were carried out using
Akito Takeuchi et al.
Journal of occupational health, 53(3), 230-233 (2011-03-23)
The purpose of this research was to develop a determination method for xylidines (XLDs) in workplace air for risk assessment. The characteristics of the proposed method, such as recovery, detection limit, reproducibility, and storage stability of the samples were examined.
Usha John et al.
Spectrochimica acta. Part A, Molecular and biomolecular spectroscopy, 60(10), 2337-2341 (2004-07-14)
The near infrared vibrational overtone absorption spectrum of liquid phase 2,6-dimethylaniline and 2,4-dimethylaniline are reported in the region deltanu = 2, 3 and 4. The aryl CH, methyl CH and NH local mode mechanical frequency values obtained from fitting the
B Przybojewska
Teratogenesis, carcinogenesis, and mutagenesis, 19(5), 323-327 (1999-09-25)
The alkaline single cell gel electrophoresis (SCGE) or "comet" assay under alkaline conditions was used to measure DNA damage in the liver cells of B6C3F1 male mice exposed to 2,4-dimethylaniline and 2, 4,6-trimethylaniline. Cells embedded in agarose were lysed, subjected
Robert J Strife et al.
Journal of chromatography. A, 1216(41), 6970-6973 (2009-09-08)
The assessment of human exposure to specific isomers of dimethylanilines (DMA's) is of interest for the evaluation of potential exposure-health outcome relationships. Improved analytical methods will help in identifying the environmental sources of such exposures. The separation of all six
Ee Lui Ang et al.
Applied microbiology and biotechnology, 81(6), 1063-1070 (2008-09-25)
The objective of this study was to enhance the activity of aniline dioxygenase (AtdA), a multi-component Rieske non-heme iron dioxygenase enzyme isolated from Acinetobacter sp. strain YAA, so as to create an enhanced biocatalyst for the bioremediation of aromatic amines.
Jin-Zhong Xu et al.
Journal of separation science, 32(23-24), 4020-4024 (2010-01-13)
A method for the determination and confirmation of amitraz and its degradation product 2,4-dimethylaniline (2,4-DMA) in honey is reported. Determination of the two compounds was based on HPLC with UV detection and MS/MS (LC-MS/MS) after a liquid-liquid extraction with hexane
Stéphanie Romand et al.
European journal of pharmaceutical sciences : official journal of the European Federation for Pharmaceutical Sciences, 63, 14-21 (2014-07-06)
A capillary isoelectric focusing (cIEF) method was developed for the determination of the ionization constants (pKa) of small molecules. Two approaches used to decrease the electroosmotic flow (EOF) were compared: (i) a hydroxypropylcellulose (HPC) coated capillary in aqueous medium and
C Gopinath et al.
Toxicology, 15(2), 113-127 (1980-01-01)
The usefulness of measuring serum bile acid concentrations by RIA in a number of acute experimental liver injuries of rats was assessed by comparing the concentrations with the results of some of the routinely employed methods of examining hepatotoxic changes.
[Various characteristics of the combined effects of chemical substances on the body after their inhalation and skin absorption].
Iu L Egorov et al.
Gigiena truda i professional'nye zabolevaniia, (11)(11), 32-34 (1985-11-01)
R D Brimecombe et al.
Journal of agricultural and food chemistry, 54(21), 8139-8143 (2006-10-13)
The widespread use of the pesticide amitraz for pest control of crops, livestock and honeybees has warranted several studies aimed at understanding the degradation of this compound during storage and use. In particular the degradation of amitraz and the nature
Ee L Ang et al.
The FEBS journal, 274(4), 928-939 (2007-02-03)
Aniline dioxygenase is a multicomponent Rieske nonheme-iron dioxygenase enzyme isolated from Acinetobacter sp. strain YAA. Saturation mutagenesis of the substrate-binding pocket residues, which were identified using a homology model of the alpha subunit of the terminal dioxygenase (AtdA3), was used
Metabolic activation of 2,4-xylidine and its mutagenic metabolite.
T Nohmi et al.
Biochemical pharmacology, 32(4), 735-738 (1983-02-15)
Huan Yu et al.
Journal of chromatography. B, Analytical technologies in the biomedical and life sciences, 878(21), 1746-1752 (2010-06-18)
A new method has been developed for determination and confirmation of amitraz and its main metabolite, 2,4-dimethylaniline, in food animal tissues using gas chromatography-electron capture detector (GC-ECD) and gas chromatography-mass spectrometry detector (GC-MS). This method is based on a new
Nilgun Tokman et al.
Journal of chromatography. A, 1216(15), 3138-3146 (2009-02-24)
A method has been developed for identification and quantification of the acaricide amitraz and its transformation products, 2,4-dimethylaniline (DMA), 2,4-dimethylformamidine (DMF) and N-2,4-dimethylphenyl-N-methylformamidine (DMPF) in pears. The analytes were extracted using ethyl acetate and anhydrous sodium sulphate. Analysis was performed
Magdalena Markowicz-Piasecka et al.
Pharmacological reports : PR, 67(6), 1230-1239 (2015-10-21)
Intravenous injection seems to be the most convenient way of administering drugs and contrast agents, which makes components of the blood the first and usually unwanted target of their action. Binding of intravenously administered compounds to erythrocytes, blood platelets and
Juan F García-Reyes et al.
Analytical chemistry, 79(1), 307-321 (2006-12-30)
The identification of transformation products of pesticides in foodstuffs is a crucial task difficult to tackle, due to the lack of standards and scarce information available. In this work, we describe a methodology for the identification and structural elucidation of
S Göb et al.
Water science and technology : a journal of the International Association on Water Pollution Research, 44(5), 339-345 (2001-11-07)
Among advanced oxidation processes (AOPs), the photochemically enhanced Fenton reaction may be considered as one of the most efficient for the degradation of contaminants in industrial wastewater. This process involves a series of complex reactions. Therefore, an empirical model based
B Przybojewska
Cancer letters, 147(1-2), 1-4 (2000-02-05)
The alkaline single cell gel electrophoresis (SCGE) or 'comet' assay under alkaline conditions was used to measure DNA damage in the liver cells of B6C3F1 male mice exposed to 2,4-dimethylaniline and 2,4,6-trimethylaniline. Cells embedded in agarose were lysed, subjected briefly
Stefan H Bossmann et al.
Chemphyschem : a European journal of chemical physics and physical chemistry, 3(5), 401-407 (2002-12-06)
TiO2-codoped [FeII(bpy)3]2+/zeolite Y systems are revealed to be efficient photocatalysts for photochemically enhanced Fenton processes. Preparation, characterization, and tests using 2,4-xylidine as a model pollutant are described, and a first mechanistic hypothesis explaining the rather high photochemical reactivity of the
R D Brimecombe et al.
Journal of agricultural and food chemistry, 54(23), 8799-8803 (2006-11-09)
2,4-Dimethylaniline is a recalcitrant degradant of the pesticide amitraz and is also an industrial pollutant which is genotoxic, teratogenic and carcinogenic. The biological degradation of 2,4-dimethylaniline was examined and monitored by cyclic voltammetry. Pseudomonas species isolated from cattle dip tanks
Ana M Amat et al.
Chemosphere, 57(9), 1123-1130 (2004-10-27)
The possibility of using zeolites containing the 2,4,6-triphenylpyrylium cation as photocatalysts for the degradation of pollutants has been tested on aqueous xylidine (2,4-dimethylaniline) solutions as models for contaminated wastewaters. The influence of the photocatalyst and substrate concentrations on xylidine oxidation
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