The interactions of paracetamol, caffeine and metazachlor with humic acids studied using surface plasmon resonance imaging

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F61988987%3A17310%2F25%3AA2603BNU" target="_blank" >RIV/61988987:17310/25:A2603BNU - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/61989100:27710/25:10259209

Výsledek na webu

<a href="https://linkinghub.elsevier.com/retrieve/pii/S014181302507847X" target="_blank" >https://linkinghub.elsevier.com/retrieve/pii/S014181302507847X</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1016/j.ijbiomac.2025.147290" target="_blank" >10.1016/j.ijbiomac.2025.147290</a>

Jazyk výsledku

angličtina

Název v původním jazyce

The interactions of paracetamol, caffeine and metazachlor with humic acids studied using surface plasmon resonance imaging

Popis výsledku v původním jazyce

The transport of micropollutants through soil is, inter alia, largely influenced by their interaction with humic acids (HAs). As chemically complex carbon molecules, HAs make part of natural organic matter and play a significant role in the retention of micropollutants in the environment. This study examines the interactions of pH-dependent HA fractions with metazachlor, paracetamol, and caffeine, using the surface plasmon resonance imaging (SPRi) method. Fluorescence spectroscopy and Fourier transform infrared spectroscopy were used as comparative methods in addition to the optical lab-on-a-chip sensor technique, which is certainly novel in the study of HAs. The results of the SPRi measurements demonstrate that the association (ka) and dissociation (kd) rate constants depend on the pH during the precipitation process. Paracetamol exhibited the highest ka (25.3–86.8 L mol−1 s−1) and kd (6.5–8.3 s−1). The equilibrium association constant KA was the highest (1170 L mol−1) in paracetamol and the lowest (273 L mol−1) in metazachlor. The study demonstrates that SPRi can be an effective tool to evaluate the potential sorption-desorption processes occurring in soils contaminated with organic micropollutants.

Název v anglickém jazyce

The interactions of paracetamol, caffeine and metazachlor with humic acids studied using surface plasmon resonance imaging

Popis výsledku anglicky

The transport of micropollutants through soil is, inter alia, largely influenced by their interaction with humic acids (HAs). As chemically complex carbon molecules, HAs make part of natural organic matter and play a significant role in the retention of micropollutants in the environment. This study examines the interactions of pH-dependent HA fractions with metazachlor, paracetamol, and caffeine, using the surface plasmon resonance imaging (SPRi) method. Fluorescence spectroscopy and Fourier transform infrared spectroscopy were used as comparative methods in addition to the optical lab-on-a-chip sensor technique, which is certainly novel in the study of HAs. The results of the SPRi measurements demonstrate that the association (ka) and dissociation (kd) rate constants depend on the pH during the precipitation process. Paracetamol exhibited the highest ka (25.3–86.8 L mol−1 s−1) and kd (6.5–8.3 s−1). The equilibrium association constant KA was the highest (1170 L mol−1) in paracetamol and the lowest (273 L mol−1) in metazachlor. The study demonstrates that SPRi can be an effective tool to evaluate the potential sorption-desorption processes occurring in soils contaminated with organic micropollutants.

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

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

International Journal of Biological Macromolecules

ISSN

0141-8130

e-ISSN

1879-0003

Svazek periodika

—

Číslo periodika v rámci svazku

2

Stát vydavatele periodika

NL - Nizozemsko

Počet stran výsledku

9

Strana od-do

—

Kód UT WoS článku

001571256600001

EID výsledku v databázi Scopus

2-s2.0-105015298688