2014
DOI: 10.4136/ambi-agua.1346
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Determinação simultânea de estriol, -estradiol, 17etinilestradiol e estrona empregando-se extração em fase sólida (SPE) e cromatografia líquida de alta eficiência (HPLC)

Abstract: RESUMOOs hormônios β-Estradiol, estrona, estriol e 17α-etinilestradiol vêm sendo detectados em efluentes principalmente porque os atuais processos de tratamento de esgotos são incapazes de removê-los, sendo uma parte descartada em corpos receptores. Estas substâncias causam danos à saúde humana e ambientais (organismos aquáticos e terrestres) por isso o seu monitoramento é necessário. No presente trabalho, empregou-se extração em fase sólida (SPE) utilizando cartuchos adsorventes de octadecil sílica (C 18 ) e … Show more

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Cited by 7 publications
(3 citation statements)
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“…A high-performance liquid chromatography (HPLC) method was developed for the determination of estrogens following the instructions provided by Snyder et al (1997) and using as a starting point the study by Daniel and Lima (2014) automatic injector, a column furnace, OpenLAB revision A.01.05 data acquisition software, and a diode network detection system (DAD) were used to perform this work, with a Phenomenex kinetex C18 column (30 mm x 2,1 mm x 5 μm). The parameters of the method were as follows: isocratic mode, mobile phase 50:50 v/v acidified water with orthophosphoric acid (PA, LabSynth) (20 μl of acid / L ultrapure water) and acetonitrile (HPLC grade, JT Baker), flow 1,0 mL min -1 , injection volume of 5 μL, temperature of 40°C, reading in λ = 280 nm, as described by Daniel and Lima (2014). In the same proportion of the mobile phase, stock solutions of estriol (E3), estrone (E1), 17α-ethinylestradiol (EE2), β-estradiol (E2), mestranol MeEE2) and progesterone (PROG) (all from Sigma Aldrich) were prepared in acetonitrile and water, in the concentration of 50 mg L -1 .…”
Section: Methodsmentioning
confidence: 99%
“…A high-performance liquid chromatography (HPLC) method was developed for the determination of estrogens following the instructions provided by Snyder et al (1997) and using as a starting point the study by Daniel and Lima (2014) automatic injector, a column furnace, OpenLAB revision A.01.05 data acquisition software, and a diode network detection system (DAD) were used to perform this work, with a Phenomenex kinetex C18 column (30 mm x 2,1 mm x 5 μm). The parameters of the method were as follows: isocratic mode, mobile phase 50:50 v/v acidified water with orthophosphoric acid (PA, LabSynth) (20 μl of acid / L ultrapure water) and acetonitrile (HPLC grade, JT Baker), flow 1,0 mL min -1 , injection volume of 5 μL, temperature of 40°C, reading in λ = 280 nm, as described by Daniel and Lima (2014). In the same proportion of the mobile phase, stock solutions of estriol (E3), estrone (E1), 17α-ethinylestradiol (EE2), β-estradiol (E2), mestranol MeEE2) and progesterone (PROG) (all from Sigma Aldrich) were prepared in acetonitrile and water, in the concentration of 50 mg L -1 .…”
Section: Methodsmentioning
confidence: 99%
“…Usually, analyses using gas chromatography-mass spectrometry or liquid chromatography with mass spectrometry are used to determine endocrine compounds in water at ng/L to μg/L levels. Daniel and de Lima [22] reported the determination of 17β-estradiol and estrone in natural water using solid-phase extraction and high-performance liquid chromatography (HPLC), obtaining a limit of detection of 1.62 and 1.57 μg/L for β-estradiol and estrone, respectively. Manickum, John, and Mlambo [23] using gas chromatography and mass spectrometric detection obtained a limit of detection of 5 ng/L for estrone and 5 ng/L for 17β-estradiol in ultrapure water matrix, respectively.…”
Section: Response Of the Cantilever Nanobiosensormentioning
confidence: 99%
“…A high-performance liquid chromatography (HPLC) method was developed for the determination of estrogens following the instructions provided by Snyder et al (1997) and using as a starting point the study by Daniel and Lima (2014 , injection volume of 5 μL, temperature of 40°C, reading in λ = 280 nm, as described by Daniel and Lima (2014). In the same proportion of the mobile phase, stock solutions of estriol (E3), estrone (E1), 17α-ethinylestradiol (EE2), β-estradiol (E2), mestranol MeEE2) and progesterone (PROG) (all from Sigma Aldrich) were prepared in acetonitrile and water, in the concentration of 50 mg L -1…”
Section: Methodsmentioning
confidence: 99%