Zobrazeno 1 - 10 of 57 pro vyhledávání: '"D E Wells"'
1
Studies on the barker (neonatal respiratory distress) syndrome in the pig
Autor: A E, Wrathall, J, Bailey, D E, Wells, C N, Hebert
Publikováno v: The Cornell veterinarian. 67(4)
A carrier boar was mated with 6 carrier sows to produce a total of 88 piglets (9 litters), 29.5% of which were 'barkers'. Analysis of these results implicated a recessive gene in the inheritance of the syndrome. Affected piglets were of normal size b
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=pmid________::9fabb4ed21dce6c58d663f40f46e081d
https://pubmed.ncbi.nlm.nih.gov/25087304
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2
QUASIMEME laboratory performance study of the biological effects of tributyltin (imposex and intersex) on two marine gastropod molluscs
Autor: B. Bauer, Ian M. Davies, M. J. H. Harding, A. Minchin, D. E. Wells
Publikováno v: Journal of Environmental Monitoring. 1:233-238
The disruption of the endocrine systems of gastropod molluscs and consequential physiological changes (imposex and intersex) are used as biomarkers for environmental contamination by tributyltin compounds. The first international laboratory performan
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::e4610c1916ec8ef66bbcb40ac46d569b
https://doi.org/10.1039/a902797a
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3
Multivariate analysis applied to the study of the distribution of chlorobiphenyls (CBs), including the non-ortho-CBs, in fish and sea mammals
Autor: Cristina Nerín, J.I. Cacho, I. Echarri, D. E. Wells, Celia Domeño
Publikováno v: The Analyst. 123:421-427
Twenty-one individual chlorobiphenyls (CBs), including the most toxic non-ortho-CBs, were determined in 52 samples of sea mammals, harbour porpoise (Phoceana phoceana), dabs (Limanda limanda), seals (Phoca vitulina) and dolphins (Tursiops truncatus).
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9610f8f0e99b20b9a4c8f1bf6dee92d4
https://doi.org/10.1039/a705203k
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6
Determination of Pentachlorophenol by Exhaustive Methylation and Capillary Gas Chromatography in Sewage Sludge, Contaminated Water and Suspended Particulates
Autor: D. E. Wells, I. Cruz
Publikováno v: International Journal of Environmental Analytical Chemistry. 48:101-113
A method for the determination of pentachlorophenol (PCP) in large volumes of sea water and suspended particulate matter is described. PCP is methylated using methyl iodide in the presence of tetra-butylammonium hydroxide (TBA). The methyl derivative
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::93acf5984ea379e6093fd222c682fb03
https://doi.org/10.1080/03067319208027044
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7
Determination of Individual Chlorobiphenyls (CBs), Including Non-Ortho, and Mono-Ortho Chloro Substituted CBs in Marine Mammals from Scottish Waters
Autor: D. E. Wells, I. Echarri
Publikováno v: International Journal of Environmental Analytical Chemistry. 47:75-97
Twenty individual chlorobiphenyls (CBs) have been determined in marine mammals. The more toxic non-ortho and mono-ortho CBs have been separated from di and tri-ortho CBs using a pyrenyl silica HPLC column prior to the final determination by capillary
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::fbdf5e434a6db9a0b7a36e876d8dee1c
https://doi.org/10.1080/03067319208027021
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8
Development in the Analysis of Chlorobiphenyls in Environmental Matrices for Certification Purposes
Autor: B. Griepink, E. A. Maier, D. E. Wells
Publikováno v: International Journal of Environmental Analytical Chemistry. 46:265-275
The development of methods for the determination of chlorobiphenyls in environmental matrices for the certification of Reference Materials has recently concentrated on improving chromatographic separation techniques, chemical ionization-negative ion
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::f9d71efeccf2a95284023c6608755233
https://doi.org/10.1080/03067319208032567
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9
Calibrants and Calibration for Chlorobiphenyl Analysis
Autor: B. Griepink, D. E. Wells, E. A. Maier
Publikováno v: International Journal of Environmental Analytical Chemistry. 46:255-264
Guidelines are given for the preparation of calibration solutions and the calibration of the capillary gas chromatograph for the determination of chlorobiphenyls (CBs) and ways in which errors may be reduced to produce comparable data in the analysis
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::e7201577a4c69f530abc82a2da0ac65f
https://doi.org/10.1080/03067319208032566
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10
Certified reference materials chlorobiphenyls (IUPAC nos 28, 52, 101, 118, 153 and 180) in dried sewage sludge ? CRM 392
Autor: E. A. Maier, D. E. Wells, Herbert Muntau, B. Griepink
Publikováno v: Fresenius' Journal of Analytical Chemistry. 339:173-180
Six chlorinated biphenyls — CB IUPAC nos 28, 52, 101, 118, 153 and 180 — have been certified in a dried sewage sludge of a mainly residential area. After a thorough preparation the material has been studied for the “within-” and “between bo
Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::263a4b80be5a6e9e64b001beb41191d5
https://doi.org/10.1007/bf00324406
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