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.
References in periodicals archive ?
Table 3 shows the association between selected PCB congeners and PCB groupings and metastatic prostate cancer in the Janus study.
7 years was estimated for dioxin congeners other than 2,3,7,8-TCDD in a study performed by Flesch-Janys and co-authors (1996).
In general, the lower and higher chlorinated PCB congeners were evenly distributed in all Eerika soils except Eerika-1982 and 1992, in which only PCB-194
This new information demonstrates 2,3,7,8 TCDD, the most toxic dioxin congener and one recognized as a carcinogen by the International Agency for Research on Cancer, is in fact present on the plant site, a fact previously unknown and unreported, although we reported this congener in the two sediment samples adjacent to the plant outfall in our original report.
These include the following SRMs: SRM 1493 (PCBs in 2,2,4-Trimethylpentane) [27], SRM 2262 (Chlorinated Biphenyl Congeners in 2,2,4-Trimethylpentane, Nominal Concentration 2 [micro]g [mL.
A third PBDE formulation, based on the fully brominated, or deca, congener known as BDE-209 isn't slated for a phaseout anywhere.
The scientists at Fargo are identifying routes of exposure and distribution of the 17 toxic congeners in animals being raised for food and how this affects our food supply.
This results in enhanced leaching and volatilisation of PCBs, particularly of the more water-soluble and volatile lower chlorinated congeners (Strek and Weber 1982), but reduces the rate of PCB biodegradation because of the lack of oxygen.
A hangover is caused by a combination of factors including dehydration and the action of impurities in alcohol called congeners.
Initially, we expected the deglycosylated congeners of digitoxin (i.
Only 17 of these congeners are considered to be toxicologically significant.