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Showing 13 to 24 of 934 entries
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Dioxins from thermal and metallurgical processes: recent studies for the iron and steel industry.

Chemosphere

Buekens A, Stieglitz L, Hell K, Huang H, Segers P.
PMID: 11219699
Chemosphere. 2001 Feb-Mar;42(5):729-35. doi: 10.1016/s0045-6535(00)00247-2.

In thermal metallurgical processes such as iron ore sintering and metal smelting operations, large flows of off-gases are generated. Mainly due to residue recycling in such processes, chlorine and volatile organics are always present in the feed. As a...

Adsorption of PCDD/F on MWI fly ash.

Chemosphere

Mätzing H, Baumann W, Becker B, Jay K, Paur HR, Seifert H.
PMID: 11219706
Chemosphere. 2001 Feb-Mar;42(5):803-9. doi: 10.1016/s0045-6535(00)00254-x.

The removal of polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/F) from waste incinerator off-gas is a costly task, because a considerable part of the PCDD/F may exist in the gas phase (often 50-100% around 200 degrees C). The volatile fraction passes...

Polychlorinated Dibenzo-p-Dioxins and Dibenzofurans in Storm Water Outfalls Adjacent to Urban Areas and Petroleum Refineries in San Francisco Bay, California.

Archives of environmental contamination and toxicology

Wenning RJ, Mathur DB, Paustenbach DJ, Stephenson MJ, Folwarkow S, Luksemburg WJ.
PMID: 10473784
Arch Environ Contam Toxicol. 1999 Oct;37(3):290-302. doi: 10.1007/s002449900517.

Polychlorinated dibenzo-p-dioxins and dibenzofurans (PCDD/Fs) were analyzed in storm water collected from 15 outfalls in San Francisco Bay, California, considered representative of areas located adjacent to petroleum refineries and mixed urban/commercial/residential land uses. Storm water sampling was conducted hourly...

Development of a multiple-class high-resolution gas chromatographic relative retention time model for halogenated environmental contaminants.

Analytical chemistry

Rayne S, Ikonomou MG.
PMID: 12641222
Anal Chem. 2003 Mar 01;75(5):1049-57. doi: 10.1021/ac020406p.

A predictive model for the relative gas chromatographic retention times (GC-RRTs) of the following nine classes of halogenated environmental contaminants was developed: polybrominated diphenyl ethers (PBDEs); polychlorinated diphenyl ethers (PCDEs); polychlorinated biphenyls (PCBs); polychlorinated naphthalenes (PCNs); polychlorinated dibenzo-p-dioxins (PCDDs);...

Analysis of multimode effects in the free-propagation region of a silicon-on-insulator-based arrayed-waveguide grating demultiplexer.

Applied optics

Dai D, He S.
PMID: 12952331
Appl Opt. 2003 Aug 20;42(24):4860-6. doi: 10.1364/ao.42.004860.

Multimode effects in the free-propagation regions (FPRs) of an arrayed-waveguide grating (AWG) demultiplexer based on silicon-on-insulator are considered. Some undesired multimode effects, such as the increase of the insertion loss and the cross talk, are studied by use of...

Identification of surrogate compounds for the emission of PCdd/F (I-TEQ value) and evaluation of their on-line real-time detectability in flue gases of waste incineration plants by REMPI-TOFMS mass spectrometry.

Chemosphere

Blumenstock M, Zimmermann R, Schramm KW, Kettrup A.
PMID: 11219675
Chemosphere. 2001 Feb-Mar;42(5):507-18. doi: 10.1016/s0045-6535(00)00223-x.

Correlations between products of incomplete combustion (PIC), e.g., chloroaromatic compounds, can be used to characterise the emissions from combustion processes, like municipal or hazardous waste incineration. A possible application of such relationships may be the on-line real-time monitoring of...

Combustion of brominated flame retardants and behavior of its byproducts.

Chemosphere

Sakai S, Watanabe J, Honda Y, Takatsuki H, Aoki I, Futamatsu M, Shiozaki K.
PMID: 11219676
Chemosphere. 2001 Feb-Mar;42(5):519-31. doi: 10.1016/s0045-6535(00)00224-1.

The substance flow rate of PBDDs/DFs into flue gas and incineration residues from incineration of three types of waste samples containing brominated flame retardants were examined. The samples used consisted of PBDEs (a typical retardant), used TV casing materials...

Occupational exposure: Organochlorine compounds in blood plasma from potentially exposed workers. PCB, PCN, PCDD/PCDF, HCB and methylsulphonyl metabolites of PCB.

Environmental science and pollution research international

Weistrand C, Norén K, Nilsson A.
PMID: 19002410
Environ Sci Pollut Res Int. 1997;4(1):2-9. doi: 10.1007/BF02986256.

Concentrations of polychlorinated biphenyls (PCB), polychlorinated naphthalenes (PCN), polychlorinated dibenzo-p-dioxins (PCDD), polychlorinated dibenzofurans (PCDF), hexachlorobenzene and methylsulphonyl metabolites of PCB were determined in blood plasma from potentially exposed workers and controls. Three of the potentially exposed subjects had worked...

Origin of chlorinated dioxins.

Science (New York, N.Y.)

Carlson RE.
PMID: 17741074
Science. 1981 Sep 04;213(4512):1057-60. doi: 10.1126/science.213.4512.1057-b.

No abstract available.

A new chiral lanthanide NMR probe for the determination of the enantiomeric purity of alpha-hydroxy acids and the absolute configuration of alpha-amino acids in water.

Dalton transactions (Cambridge, England : 2003)

Dickins RS, Badari A.
PMID: 16786067
Dalton Trans. 2006 Jul 07;(25):3088-96. doi: 10.1039/b513814k. Epub 2006 Mar 13.

A water-soluble, enantiopure lanthanide complex, SSS-[Ln x L3], has been assessed as an effective chiral derivatizing agent for the determination of the enantiomeric purity of alpha-hydroxy acids in aqueous solution. The complex displays superior chemical shift non-equivalence (DeltaDeltadelta approximately...

Simultaneous determination of PCDDs, PCDFs, PCBs and PBDEs in food.

Talanta

Fernandes A, White S, D'Silva K, Rose M.
PMID: 18969544
Talanta. 2004 Aug 08;63(5):1147-55. doi: 10.1016/j.talanta.2004.05.039.

Established and comprehensively validated methodology for the analysis of PCDDs, PCDFs and polychlorinated biphenyls (PCBs) in food, animal feed and other matrices is presented. The method achieves the analytical standards of EU protocols (2002/69/EC and 2002/70/EC) that are used...

Analysis of thermal decomposition products arising from polyvinyl chloride analogs by supersonic jet/multiphoton ionization/mass spectrometry.

Talanta

Urabe T, Imasaka T.
PMID: 18968029
Talanta. 2000 Jul 31;52(4):703-9. doi: 10.1016/s0039-9140(00)00423-9.

Polyvinyl chloride (PVC) and chlorinated polyvinyl chloride (CPVC) were thermally decomposed at 200-500 degrees C, and the reaction products measured by supersonic jet/multiphoton ionization/mass spectrometry. No precursor molecules of dioxins, such as chlorobenzene, were observed from PVC, although benzene...

Showing 13 to 24 of 934 entries