View in EDS

S-quinolin-2-yl-methyldithiocarbazate-based magnetic adsorbent for magnetic solid-phase extraction of heavy metals from water samples.

Saved in:
Bibliographic Details
Title: S-quinolin-2-yl-methyldithiocarbazate-based magnetic adsorbent for magnetic solid-phase extraction of heavy metals from water samples.
Authors: Abdul Rahman, Ahmad Jazmi1 (AUTHOR), Fiona, How N.-F2 (AUTHOR), Mohd Nasir, Mohd Hamzah3,4 (AUTHOR), Mohamad, Sharifah5 (AUTHOR), Yahaya, Noorfatimah6 (AUTHOR), Jajuli, Maizatul Najwa1 (AUTHOR), Miskam, Mazidatulakmam1 (AUTHOR) mazidatul@usm.my
Source: International Journal of Environmental Analytical Chemistry. Dec 2021, Vol. 101 Issue 14, p2069-2086. 18p.
Subjects: Solid phase extraction, Water sampling, Heavy metals, Field emission electron microscopy, Energy dispersive X-ray spectroscopy, Magnetic nanoparticles
Abstract: New S-quinolin-2-yl-methyl-dithiocarbazate-based magnetic adsorbent (MNP-SQ2MDTC) for magnetic solid phase extraction (MSPE) was developed for the determination of Cd2+ and Cu2+ in water samples. The surface of MNP was first coated with (3-aminopropyl) triethoxysilane (APTES) as cross-linker and then SQ2MDTC incorporated covalently to the coated MNP. The newly prepared MNP-SQ2MDTC was analysed by Fourier Transform infrared (FT-IR), X-ray diffractometer (XRD), energy dispersive X-ray spectroscopy (EDX), vibrating-sample magnetometry (VSM), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET). Under optimal MSPE conditions (20 mg adsorbent dispersed in 25 mL of sample which adjusted to pH 6.0 and sonicated for 10 min, before desorbed in 0.5 mL of 1 M HClO4 and sonicated for 5 min), the validation method revealed a good linearity (0.1–5.0 µg mL−1) with the coefficient of determination (R2) in the range of 0.995–0.996 for the samples. The limits of detection (LOD) of the developed method for Cd2+ and Cu2+ were found to be 0.054 and 0.040 µg mL−1, and limit of quantification (LOQ) were 0.180 and 0.134 µg mL−1, respectively. The recoveries of Cd2+ ranged from 75.6% to 93.9% and from 81.5% to 98.7% for Cu2+. To the best of our knowledge, this is the first study that have investigated the use of magnetic nanoparticles coated SQ2MDTC for determination of Cd2+ and Cu2+ in water samples analysis based on complexation of the metal ions to the surface of amino groups. [ABSTRACT FROM AUTHOR]
Copyright of International Journal of Environmental Analytical Chemistry is the property of Taylor & Francis Ltd and its content may not be copied or emailed to multiple sites without the copyright holder's express written permission. Additionally, content may not be used with any artificial intelligence tools or machine learning technologies. However, users may print, download, or email articles for individual use. This abstract may be abridged. No warranty is given about the accuracy of the copy. Users should refer to the original published version of the material for the full abstract. (Copyright applies to all Abstracts.)
Database: Engineering Source
Description
Abstract:New S-quinolin-2-yl-methyl-dithiocarbazate-based magnetic adsorbent (MNP-SQ2MDTC) for magnetic solid phase extraction (MSPE) was developed for the determination of Cd2+ and Cu2+ in water samples. The surface of MNP was first coated with (3-aminopropyl) triethoxysilane (APTES) as cross-linker and then SQ2MDTC incorporated covalently to the coated MNP. The newly prepared MNP-SQ2MDTC was analysed by Fourier Transform infrared (FT-IR), X-ray diffractometer (XRD), energy dispersive X-ray spectroscopy (EDX), vibrating-sample magnetometry (VSM), field emission scanning electron microscopy (FESEM), transmission electron microscopy (TEM) and Brunauer-Emmett-Teller (BET). Under optimal MSPE conditions (20 mg adsorbent dispersed in 25 mL of sample which adjusted to pH 6.0 and sonicated for 10 min, before desorbed in 0.5 mL of 1 M HClO4 and sonicated for 5 min), the validation method revealed a good linearity (0.1–5.0 µg mL−1) with the coefficient of determination (R2) in the range of 0.995–0.996 for the samples. The limits of detection (LOD) of the developed method for Cd2+ and Cu2+ were found to be 0.054 and 0.040 µg mL−1, and limit of quantification (LOQ) were 0.180 and 0.134 µg mL−1, respectively. The recoveries of Cd2+ ranged from 75.6% to 93.9% and from 81.5% to 98.7% for Cu2+. To the best of our knowledge, this is the first study that have investigated the use of magnetic nanoparticles coated SQ2MDTC for determination of Cd2+ and Cu2+ in water samples analysis based on complexation of the metal ions to the surface of amino groups. [ABSTRACT FROM AUTHOR]
ISSN:03067319
DOI:10.1080/03067319.2019.1692827