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Title: The significance of sample mass in the analysis of steroid estrogens in sewage sludges and the derivation of partition coefficients in wastewaters
Authors: Chiu, TY
Kohb, YKK
Paterakis, N
Boobis, AR
Cartmell, E
Richards, KH
Lester, JN
Scrimshaw, MD
Keywords: Sewage sludge;Steroid estrogens;Removal;Modeling
Issue Date: 2009
Publisher: Elsevier
Citation: Journal of Chromatography A. 1216(24): 4923-4926
Abstract: Optimization of an analytical method for determination of steroid estrogens, through minimizing sample size, resulted in recoveries >84%, with relative standard deviations <3% and demonstrated the significance of sample size on method performance. Limits of detection were 2.1–5.3 ng/g. Primary sludges had estrogen concentrations of up to one order of magnitude less than those found in biological sludges (up to 994 ng/g). However, partition coefficients were higher in primary sludges (except estriol), with the most hydrophobic compound (ethinylestradiol) exhibiting the highest Kp value, information which may be of value to those involved in modeling removal during wastewater treatment.
ISSN: 0021-9673
Appears in Collections:Environment
Institute for the Environment

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