Search results for "Chlorophenol"
showing 10 items of 64 documents
POPs and organic polysufides in sediments of Lake Ladoga
2007
Abstract The study included one station close to a pollution source (depth 59 m) and another far from polluted areas (depth 40 m). Samples were analysed for organic chlorine, bromine and sulfur compounds. Samples taken with a corer were sliced to the layers of 0–1, 1–4, 4–7 cm etc. down to the depth of 34 cm. The dating was made with two independent methods, the 210Po method and with the soot particle counting method. The analyses were made with a multiresidue method. Gas chromatography was connected to low resolution mass spectrometry (LRMS) or to high resolution mass spectrometry (HRMS). A different extraction was applied to screen the possible occurrence of polysulfides. Typical chloroph…
Organochlorines as Environmental Tainting Substances: Taste Panel Study and Chemical Analyses of Incubated Mussels
1992
Lake mussels (Anodonta piscinalis) incubated in freshwater stations upstream and downstream of a large pulp mill were studied for tainting by a panel of 18 persons. The tasted animal muscle and tissue water samples, and composites of other simultaneously incubated mussels were analyzed for organochlorine compounds. Bad taste scores were obtained for mussels from the nearest station downstream to the pulp mill and were significantly (p < 0.001 **) higher than those from other stations. A similar difference was observed for the measured chlorophenol, chloroanisole and chloroveratrole, chlorocymene and PCB contents. Chloroanisoles and chloroveratroles were indicated to form the main tai…
Lipid-containing semipermeable membrane devices (SPMDs) as concentrators of toxic chemicals in the lower Fraser River, Vancouver, British Columbia.
1998
Abstract Semipermeable membrane devices (SPMDs) were deployed in the water column and in the sediments of the Lower Fraser River (B.C., Canada) to compare the levels and the congener profiles of polychlorinated dibenzo- p -dioxins (PCDDs), dibenzofurans (PCDFs) and non- ortho -chlorinated biphenyls (N-o,o′-PCBs) against those sampled by an Infiltrex resin column water sampler. Also the relationship between what was present in the ecosystem as sampled by SPMDs and what was accumulated in the tissue of resident benthic-feeding fish was explored. Only the lipid portion of the SPMDs was prepared for analysis, due to some technical difficulties in cleaning the polyethene tubing. The calculated w…
Infrared bandshapes of intramolecularly H-bonded systems—III. Vibrational dephasing of vs (OH) in 2,6-dichlorophenol
1987
Abstract The shape of the v s (OH) absorption band of intramolecularly H-bonded 2,6-dichlorophenol was measured in a series of solvents of increasing polarity and quantitatively analyzed. A distinct dependence of band positions, shape parameters, band moments, integrated intensities, correlation functions and correlation times on the polarity of solvent has been found. Vibrational dephasing due to dipole—dipole interactions seems to be an important relaxation pathway determining the bandshape in the studied systems.
Effects of pentachlorophenol in forest soil: a microcosm experiment for testing ecosystem responses to anthropogenic stress
1996
Changes in the structure and function of a soil decomposer community and growth of birch (Betula pendula) due to chemical contamination were studied in laboratory microcosms. Sodium pentachlorophenate (PCP) was added to the humus layer of a simulated forest soil at three nominal concentrations (0, 50 and 500 mg kg-1 dry mass). After two growing periods (48 weeks), there were more small soft-bodied mites, but less collembolans and microbial biomass, in the higher PCP concentration treatment than in the other treatments. Number of enchytraeids were significantly reduced and fungal-feeding nematodes became extinct in the soil with the higher PCP concentration. Soil respiration did not change d…
CCDC 921246: Experimental Crystal Structure Determination
2014
Related Article: Ashok Sasmal, Eugenio Garribba, Carlos J. Gómez-García, Cédric Desplanches, Samiran Mitra|2014|Dalton Trans.|43|15958|doi:10.1039/C4DT01699H
CCDC 1919135: Experimental Crystal Structure Determination
2020
Related Article: Julie Echaubard, Asmae Bousfiha, Mathieu Berthelot, Julien Roger, Paul Fleurat-Lessard, Hélène Cattey, Sophie Fournier, Charles H. Devillers, Dominique Lucas|2020|Eur.J.Inorg.Chem.|2020|551 |doi:10.1002/ejic.201900849
CCDC 921247: Experimental Crystal Structure Determination
2014
Related Article: Ashok Sasmal, Eugenio Garribba, Carlos J. Gómez-García, Cédric Desplanches, Samiran Mitra|2014|Dalton Trans.|43|15958|doi:10.1039/C4DT01699H
CCDC 884690: Experimental Crystal Structure Determination
2012
Related Article: M.Clemente-Leon, E.Coronado, M.Lopez-Jorda, J.C.Waerenborgh|2011|Inorg.Chem.|50|9122|doi:10.1021/ic201293f
CCDC 998898: Experimental Crystal Structure Determination
2015
Related Article: Alexandre Abherve, Miguel Clemente-Leon, Eugenio Coronado, Carlos J. Gomez-Garcia, Martin Verneret|2014|Inorg.Chem.|53|12014|doi:10.1021/ic5016803