HPLC-EC Analysis of Estrogenic Compounds: A Comparison of Diamond and Tetrahedral Amorphous Carbon Electrode Performance

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F00216208%3A11310%2F18%3A10391749" target="_blank" >RIV/00216208:11310/18:10391749 - isvavai.cz</a>

Výsledek na webu

<a href="https://onlinelibrary.wiley.com/doi/full/10.1002/elan.201800261" target="_blank" >https://onlinelibrary.wiley.com/doi/full/10.1002/elan.201800261</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1002/elan.201800261" target="_blank" >10.1002/elan.201800261</a>

Jazyk výsledku

angličtina

Název v původním jazyce

HPLC-EC Analysis of Estrogenic Compounds: A Comparison of Diamond and Tetrahedral Amorphous Carbon Electrode Performance

Popis výsledku v původním jazyce

High pressure liquid chromatography (HPLC) with amperometric detection was used to quantify estrogenic compounds in water samples. The main goal was to compare the detection figures of merit for boron-doped diamond thin-film (BDD) and nitrogen-incorporated tetrahedral amorphous carbon (ta-C : N) thin-film electrodes. The target analytes were estrone, estradiol, and estriol. The BDD and ta-C : N electrodes were investigated because of their excellent properties, which include a wide potential window, low background current, microstructural stability at high potentials, low limits of detection, weak molecular adsorption, fouling resistance and response reproducibility. ta-C : N electrodes have not yet been investigated extensively in electroanalysis and are receiving increasing interest because they exhibit many of the excellent electrochemical properties of BDD electrodes and they can be deposited at room temperature by physical vapor deposition. The results reveal as low or lower background current and noise for the ta-C:N electrode, as compared to the BDD electrode, and comparable or superior analytical detection figures of merit for all three emerging pollutants. The linear dynamic range for both electrodes was from 0.2 to 100 μmol L-1 for estriol, and 0.4 to 100 μmol L-1 for estradiol and estrone, and the sensitivity ranged from 9.1 to 11.2 mA mol L-1. For all three analytes, the limit of detection (S/N=3) ranged from 0.16-0.35 μmol L-1 (45-95 ppb) for BDD and 0.20-0.34 μmol L-1 (58-95 ppb) for ta-C:N.

Název v anglickém jazyce

HPLC-EC Analysis of Estrogenic Compounds: A Comparison of Diamond and Tetrahedral Amorphous Carbon Electrode Performance

Popis výsledku anglicky

High pressure liquid chromatography (HPLC) with amperometric detection was used to quantify estrogenic compounds in water samples. The main goal was to compare the detection figures of merit for boron-doped diamond thin-film (BDD) and nitrogen-incorporated tetrahedral amorphous carbon (ta-C : N) thin-film electrodes. The target analytes were estrone, estradiol, and estriol. The BDD and ta-C : N electrodes were investigated because of their excellent properties, which include a wide potential window, low background current, microstructural stability at high potentials, low limits of detection, weak molecular adsorption, fouling resistance and response reproducibility. ta-C : N electrodes have not yet been investigated extensively in electroanalysis and are receiving increasing interest because they exhibit many of the excellent electrochemical properties of BDD electrodes and they can be deposited at room temperature by physical vapor deposition. The results reveal as low or lower background current and noise for the ta-C:N electrode, as compared to the BDD electrode, and comparable or superior analytical detection figures of merit for all three emerging pollutants. The linear dynamic range for both electrodes was from 0.2 to 100 μmol L-1 for estriol, and 0.4 to 100 μmol L-1 for estradiol and estrone, and the sensitivity ranged from 9.1 to 11.2 mA mol L-1. For all three analytes, the limit of detection (S/N=3) ranged from 0.16-0.35 μmol L-1 (45-95 ppb) for BDD and 0.20-0.34 μmol L-1 (58-95 ppb) for ta-C:N.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

S - Specificky vyzkum na vysokych skolach<br>I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2018

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název periodika

Electroanalysis

ISSN

1040-0397

e-ISSN

—

Svazek periodika

30

Číslo periodika v rámci svazku

7

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

8

Strana od-do

1575-1582

Kód UT WoS článku

000461952300001

EID výsledku v databázi Scopus

2-s2.0-85054731377