Folic acid capped Cu (II) nanocluster for solid phase extraction of lead from water and food samples
The result's identifiers
Result code in 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>
Result on the web
<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>
Alternative languages
Result language
angličtina
Original language name
Folic acid capped Cu (II) nanocluster for solid phase extraction of lead from water and food samples
Original language description
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.
Czech name
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Czech description
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Classification
Type
J<sub>imp</sub> - Article in a specialist periodical, which is included in the Web of Science database
CEP classification
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OECD FORD branch
10406 - Analytical chemistry
Result continuities
Project
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Continuities
I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace
Others
Publication year
2025
Confidentiality
S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů
Data specific for result type
Name of the periodical
Microchemical Journal>
ISSN
0026-265X
e-ISSN
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Volume of the periodical
212
Issue of the periodical within the volume
MAY
Country of publishing house
NL - THE KINGDOM OF THE NETHERLANDS
Number of pages
10
Pages from-to
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UT code for WoS article
001449991800001
EID of the result in the Scopus database
2-s2.0-105000030084