congener


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congener

[′kän·jə·nər]
(chemistry)
A chemical substance that is related to another substance, such as a derivative of a compound or an element belonging to the same family as another element in the periodic table.
McGraw-Hill Dictionary of Scientific & Technical Terms, 6E, Copyright © 2003 by The McGraw-Hill Companies, Inc.
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PCB congener # 87 (penta-CB) showed the highest concentration among the 19 PCBs congeners.
Levels and Distribution of Polychlorinated Biphenyls in Jeddah Coastal Sediments, Red Sea, Saudi Arabia
Katsoyiannis and Samara [12] found that more than 50% of the total seven indicator PCB congeners (PCB-28, 52, 101, 118, 138, 153, and 180) were absorbed in sludge and the concentration of the PCBs in wastewater was decreased from 1000 to 250ng/L after treatment (samples were from a WWTP in Thessaloniki, northern Greece).
Polychlorinated biphenyls in the centralized wastewater treatment plant in a chemical industry zone: source, distribution, and removal
Identification and quantification of 2,3,7,8-substituted congeners of PCDDs D[Fs.sup.-1] and dioxin-like PCBs (non-and mono-ortho-substituted congeners) was performed by using a (i) Shimadzu GC-14B gas chromatograph with AOC-1400 auto-sampler.
Dioxins and polychlorinated biphenyls concentrations in Larus dominicanus. Case study: Marambaia island, Sepetiba bay, Rio de Janeiro State, Brazil/Concentracoes de dioxinas e bifenilas policloradas em Larus dominicanus. Estudo de caso: ilha da Marambaia, baia de Sepetiba, Estado do Rio de Janeiro, Brasil
Prynocaria congener and Bemisia tabaci were obtained from stock colonies kept in a greenhouse at the Engineering Research Center of Biological Control, South China Agricultural University (SCAU) on poinsettia plants, Euphorbia pulcherrima Willd, which were grown in plastic pots (15 cm diameter).
Influence of the Entomopathogenic Fungus Beauveria bassiana on Prynocaria congener (Billberg) (Coleoptera: Coccinellidae) Under Laboratory Conditions
The level of PCB congeners found in milk samples are presented in Table I.
POLYCHLORINATED RESIDUES IN MILK OF LACTATING WOMEN FROM KARACHI, PAKISTAN
The list of congeners, which includes acetaldehyde and a variety of esters (particularly the ethyl esters of [C.sub.8] to [C.sub.12] fatty acids), is extensive.
Understanding congeners in wine: how does fusel oil form, and how important is it?
Congeners in alcohol may contribute to headaches, with red wine and other darker alcohols having the most effect.
Red wine headaches
(Fabaceae) as to provide evidence that competition for pollinators has influenced reproductive distinctions between the congeners. The congeners partially overlap in flowering period and share common pollinators.
Comparison of common factors affecting seed yield in the congeners, Baptisi alba and Baptisia bracteata
The new information that now confirms the previously and apparently unknown or unreported presence of 2,3,7,8-TCDD on the site supports our belief that the concentrations of this congener found in marine sediments near the plant outfall, and at a further site in Mississippi Sound, originated from the plant site.
Addendum to: dioxin and heavy-metal contamination of shellfish and sediments in St. Louis Bay, Mississippi and adjacent marine waters
A common application of this approach is when PCBs in environmental samples are identified by comparing the PCB congener distribution pattern present in the samples with those obtained from commercial Aroclors.
Standard Reference Materials (SRMs) for the calibration and validation of analytical methods for PCBs (as Aroclor mixtures)
PBDEs are molecules that can hold up to 10 bromine atoms in 209 different configurations, or congeners. Commercial mixtures of PBDEs used as flame retardants are typically dominated by congeners with a given number of bromines.
Days may be numbered for two fire retardants

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