Folic acid capped Cu (II) nanocluster for solid phase extraction of lead from water and food samples

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F46747885%3A24620%2F25%3A00013355" target="_blank" >RIV/46747885:24620/25:00013355 - isvavai.cz</a>

Výsledek na webu

<a href="https://www.sciencedirect.com/science/article/pii/S0026265X25007295" target="_blank" >https://www.sciencedirect.com/science/article/pii/S0026265X25007295</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.microc.2025.113374" target="_blank" >10.1016/j.microc.2025.113374</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Folic acid capped Cu (II) nanocluster for solid phase extraction of lead from water and food samples

Popis výsledku v původním jazyce

This study describes the preparation of a green and efficient folic acid-capped Cu(II) nanocluster (FA-Cu(II)) using folic acid and copper sulfate as precursors. The FA-Cu(II) nanocluster was characterized through Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray analysis (EDX), X-ray Diffraction (XRD), Brunauer-Emmett-Teller (BET) and Fourier Transform Infrared (FT-IR) Spectrophotometry. It was then utilized as an adsorbent for solid-phase extraction of trace amounts of lead ions (Pb2+), followed by electrothermal atomic absorption spectrometry (ETAAS) as a detection instrument. The main factors affecting the extraction efficiency of Pb2+ were assessed and the results indicated that pH of 6, an adsorbent dosage of 6 mg, and an extraction time of 15 min yielded the highest recovery percentage for Pb2+ ions. Under the optimal conditions, the calibration curve showed a linearity in the range of 0.05 to 1.50 µg L-1 (R2 = 0.9982). The limit of detection (LOD) and limit of quantification (LOQ) calculated using 3Sb/m and 10Sb/m (where m represents the slope of the calibration curve), were 0.014 µg/L and 0.047 µg/L, respectively. The adsorption equilibrium data conformed to the Langmuir isotherm model (monolayer adsorption), yielding a maximum Pb2+ adsorption capacity of 270.3 mg/g. Moreover, the analysis of adsorption kinetic models showed that the pseudo first order kinetic model properly predicts the adsorption of Pb2+ onto the adsorbent. Finally, the synthesized adsorbent was successfully applied for measurement of Pb2+ in various water and food samples.

Název v anglickém jazyce

Folic acid capped Cu (II) nanocluster for solid phase extraction of lead from water and food samples

Popis výsledku anglicky

This study describes the preparation of a green and efficient folic acid-capped Cu(II) nanocluster (FA-Cu(II)) using folic acid and copper sulfate as precursors. The FA-Cu(II) nanocluster was characterized through Field Emission Scanning Electron Microscopy (FESEM), Energy Dispersive X-ray analysis (EDX), X-ray Diffraction (XRD), Brunauer-Emmett-Teller (BET) and Fourier Transform Infrared (FT-IR) Spectrophotometry. It was then utilized as an adsorbent for solid-phase extraction of trace amounts of lead ions (Pb2+), followed by electrothermal atomic absorption spectrometry (ETAAS) as a detection instrument. The main factors affecting the extraction efficiency of Pb2+ were assessed and the results indicated that pH of 6, an adsorbent dosage of 6 mg, and an extraction time of 15 min yielded the highest recovery percentage for Pb2+ ions. Under the optimal conditions, the calibration curve showed a linearity in the range of 0.05 to 1.50 µg L-1 (R2 = 0.9982). The limit of detection (LOD) and limit of quantification (LOQ) calculated using 3Sb/m and 10Sb/m (where m represents the slope of the calibration curve), were 0.014 µg/L and 0.047 µg/L, respectively. The adsorption equilibrium data conformed to the Langmuir isotherm model (monolayer adsorption), yielding a maximum Pb2+ adsorption capacity of 270.3 mg/g. Moreover, the analysis of adsorption kinetic models showed that the pseudo first order kinetic model properly predicts the adsorption of Pb2+ onto the adsorbent. Finally, the synthesized adsorbent was successfully applied for measurement of Pb2+ in various water and food samples.

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10406 - Analytical chemistry

Projekt

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Microchemical Journal>

ISSN

0026-265X

e-ISSN

—

Svazek periodika

212

Číslo periodika v rámci svazku

MAY

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

10

Strana od-do

—

Kód UT WoS článku

001449991800001

EID výsledku v databázi Scopus

2-s2.0-105000030084