Professor Rachel Gomes' Outputs (66)

The fate of steroid estrogens: Partitioning during wastewater treatment and onto river sediments (2010)
Journal Article
Gomes, R. L., Scrimshaw, M. D., Cartmell, E., & Lester, J. N. (2010). The fate of steroid estrogens: Partitioning during wastewater treatment and onto river sediments. Environmental Monitoring and Assessment, 175, 431–441. https://doi.org/10.1007/s10661-010-1541-1

The partitioning of steroid estrogens in wastewater treatment and receiving waters is likely to influence their discharge to, and persistence in, the environment. This study investigated the partitioning behaviour of steroid estrogens in both laborat... Read More about The fate of steroid estrogens: Partitioning during wastewater treatment and onto river sediments.

Fate of conjugated natural and synthetic steroid estrogens in crude sewage and activated sludge batch studies (2009)
Journal Article
Gomes, R. L., Scrimshaw, M. D., & Lester, J. N. (2009). Fate of conjugated natural and synthetic steroid estrogens in crude sewage and activated sludge batch studies. Environmental Science and Technology, 43(10), 3612–3618. https://doi.org/10.1021/es801952h

Steroids are excreted from the human body in the conjugated form but are present in sewage influent and effluent as the free steroid, the major source of estrogenic activity observed in water courses. The fate of sulfate and glucuronide conjugated st... Read More about Fate of conjugated natural and synthetic steroid estrogens in crude sewage and activated sludge batch studies.

Simultaneous determination of natural and synthetic steroid estrogens and their conjugates in aqueous matrices by liquid chromatography/mass spectrometry (2005)
Journal Article
Gomes, R. L., Birkett, J. W., Scrimshaw, M. D., & Lester, J. N. (2005). Simultaneous determination of natural and synthetic steroid estrogens and their conjugates in aqueous matrices by liquid chromatography/mass spectrometry. International Journal of Environmental Analytical Chemistry, 85(1), 1-14. https://doi.org/10.1080/03067310512331324745

An analytical method for the simultaneous determination of nine free and conjugated steroid estrogens was developed with application to environmental aqueous matrices. Solid-phase extraction (SPE) was employed for isolation and concentration, with de... Read More about Simultaneous determination of natural and synthetic steroid estrogens and their conjugates in aqueous matrices by liquid chromatography/mass spectrometry.

Steroid-estrogen determination in sediment and sewage sludge: A critique of sample preparation and chromatographic/mass spectrometry considerations, incorporating a case study in method development (2004)
Journal Article
Gomes, R. L., Avcioglu, E., Scrimshaw, M. D., & Lester, J. N. (2004). Steroid-estrogen determination in sediment and sewage sludge: A critique of sample preparation and chromatographic/mass spectrometry considerations, incorporating a case study in method development. Trends in Analytical Chemistry, 23(10-11), 737-744. https://doi.org/10.1016/j.trac.2004.08.006

An assessment of the bioaccumulation of estrone in Daphnia magna (2004)
Journal Article
Gomes, R. L., Deacon, H. E., Lai, K. M., Birkett, J. W., Scrimshaw, M. D., & Lester, J. N. (2004). An assessment of the bioaccumulation of estrone in Daphnia magna. Environmental Toxicology and Chemistry, 23(1), 105-108. https://doi.org/10.1897/02-613

The bioaccumulation of estrone by Daphnia magna was determined. Direct uptake via the aqueous medium occurred within the first 16 h. A bioconcentration factor of 228 was established over all temporal periods. Ingestion via Chlorella vulgaris gave a p... Read More about An assessment of the bioaccumulation of estrone in Daphnia magna.

Determination of endocrine disrupters in sewage treatment and receiving waters (2003)
Journal Article
Gomes, R. L., Scrimshaw, M. D., & Lester, J. N. (2003). Determination of endocrine disrupters in sewage treatment and receiving waters. Trends in Analytical Chemistry, 22(10), 697-707. https://doi.org/10.1016/S0165-9936%2803%2901010-0

The presence of numerous endocrine-disrupting compounds (EDCs) in surface waters and sediment has been primarily attributed to their incomplete removal in the sewage-treatment process. Determination of these chemicals is required in order to assess t... Read More about Determination of endocrine disrupters in sewage treatment and receiving waters.