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@article{1672037,
author = {Siegel, Jan and Wangmo, Chimi and Cuhorka, Jiri and Otoupalíková, Alena and Bittner, Michal},
article_location = {Amsterdam},
article_number = {February 2020},
doi = {http://dx.doi.org/10.1016/j.eti.2019.100584},
keywords = {Reverse osmosis; Estrogens; Sample enrichment; LC/MS analysis},
language = {eng},
issn = {2352-1864},
journal = {Environmental Technology and Innovation},
title = {Mathematical modeling of enrichment of estrogens in water samples using reverse osmosis device},
url = {https://www.sciencedirect.com/science/article/pii/S2352186419303694?via%3Dihub},
volume = {17},
year = {2020}
}
TY - JOUR
ID - 1672037
AU - Siegel, Jan - Wangmo, Chimi - Cuhorka, Jiri - Otoupalíková, Alena - Bittner, Michal
PY - 2020
TI - Mathematical modeling of enrichment of estrogens in water samples using reverse osmosis device
JF - Environmental Technology and Innovation
VL - 17
IS - February 2020
SP - 1-10
EP - 1-10
PB - Elsevier
SN - 23521864
KW - Reverse osmosis
KW - Estrogens
KW - Sample enrichment
KW - LC/MS analysis
UR - https://www.sciencedirect.com/science/article/pii/S2352186419303694?via%3Dihub
L2 - https://www.sciencedirect.com/science/article/pii/S2352186419303694?via%3Dihub
N2 - Estrogens that constitute some of the potent endocrine disruptors are present in the water environment in very low concentrations (below ng/L) requiring sample enrichment to increase its concentration prior to an analytical determination. Currently, solid-phase extraction is the most commonly used enrichment method, but reverse osmosis (RO) may provide a promising alternative with the advantage of maintaining whole water sample including hydrophilic constituents such as humic substances. Subsequent in vitro assessment of such complex samples can provide more realistic information on their estrogenicity. Therefore, a novel experimental enrichment device employing the RO process using a flat-sheet membrane was developed for sample enrichment. In the current study, we aim to develop a mathematical model describing the RO enrichment process using the novel device. The mathematical model was created in MATLAB-Simulink software and validated with experimental results. NaCl at 0.2 and 2 g/L and tap water spiked with 17 alpha-ethynylestradiol (EE2) at concentrations of 10 and 50 ng/L were used as model compounds. A mean relative error between the model and experimental results were 1.5 and 0.9 % for NaCl samples, and 17.3 and 14.4 % for E2, respectively. These results suggest the usefulness of the model for describing the RO system and suitability of the RO device for the enrichment of estrogens prior to instrumental or in vitro analysis.
ER -
SIEGEL, Jan, Chimi WANGMO, Jiri CUHORKA, Alena OTOUPALÍKOVÁ and Michal BITTNER. Mathematical modeling of enrichment of estrogens in water samples using reverse osmosis device. \textit{Environmental Technology and Innovation}. Amsterdam: Elsevier, 2020, vol.~17, February 2020, p.~1-10. ISSN~2352-1864. Available from: https://dx.doi.org/10.1016/j.eti.2019.100584.
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