Search Results - "Koenig, Brenda G."

Distribution of acidic and neutral drugs in surface waters near sewage treatment plants in the lower Great Lakes, Canada by Metcalfe, Chris D., Miao, Xiu-Sheng, Koenig, Brenda G., Struger, John

“…Prescription and nonprescription drugs have been detected in rivers and streams in Europe and the United States. Sewage treatment plants (STPs) are an…”
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Analysis of acidic drugs in the effluents of sewage treatment plants using liquid chromatography–electrospray ionization tandem mass spectrometry by Miao, Xiu-Sheng, Koenig, Brenda G, Metcalfe, Chris D

“…A liquid chromatography–electrospray ionization tandem mass spectrometry (LC–ESI-MS–MS) method was developed and validated for simultaneous analysis of nine…”
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Occurrence of neutral and acidic drugs in the effluents of Canadian sewage treatment plants by Metcalfe, Chris D., Koenig, Brenda G., Bennie, Don T., Servos, Mark, Ternes, Thomas A., Hirsch, Roman

“…Samples of influent (untreated) and effluent (treated) from 18 sewage treatment plants (STPs) in 14 municipalities in Canada were analyzed for residues of…”
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Estrogenic potency of chemicals detected in sewage treatment plant effluents as determined by in vivo assays with Japanese medaka (Oryzias latipes) by Metcalfe, Chris D., Metcalfe, Tracy L., Kiparissis, Yiannis, Koenig, Brenda G., Khan, Colin, Hughes, Richard J., Croley, Timothy R., March, Raymond E., Potter, Thomas

“…Gonadal intersex and high prevalences of the female phenotype have been observed in fish populations in urbanized areas. Environmental estrogens discharged in…”
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Mass spectrometry applied to the analysis of estrogens in the environment by Croley, Timothy R., Hughes, Richard J., Koenig, Brenda G., Metcalfe, Chris D., March, Raymond E.

“…Environmental analytical chemistry has recently changed focus from analysis of non‐polar, persistent contaminants (e.g. polychlorinated biphenyls and dioxins)…”
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Mass spectrometric study of persistent acid metabolites of nonylphenol ethoxylate surfactants by Hao, Chunyan, Croley, Timothy R., March, Raymond E., Koenig, Brenda G., Metcalfe, Chris. D.

“…A mass spectrometric study was carried out on two nonylphenoxycarboxylic acids, NP1EC and NP2EC (where 1 and 2 indicate the number of ethoxylate units attached…”
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ESTROGENIC POTENCY OF CHEMICALS DETECTED IN SEWAGE TREATMENT PLANT EFFLUENTS AS DETERMINED BY IN VIVO ASSAYS WITH JAPANESE MEDAKA (ORYZIAS LATIPES) by Metcalfe, Chris D., Metcalfe, Tracy L., Kiparissis, Yiannis, Koenig, Brenda G., Khan, Colin, Hughes, Richard J., Croley, Timothy R., March, Raymond E., Potter, Thomas

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