Carbon/Alginate/Chitosan composite as a sorbent for solid-phase extraction and preconcentration of Cu(II)

Ahmad Akhib Ainul, Yaqin and Suherman, Suherman and Mudasir, Mudasir and Dwi, Siswanta (2022) Carbon/Alginate/Chitosan composite as a sorbent for solid-phase extraction and preconcentration of Cu(II). Indonesian Journal of Chemistry (Indones. J. Chem), 22 (6): 1. pp. 1469-1479. ISSN 1411-9420 e_ISSN: 2460-1578

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Abstract

Carbon/Alginate/Chitosan Composite (CAC) as a sorbent for solid-phase extraction of Cu(II) (pre-concentration) with atomic absorption spectrometry for analysis was successfully prepared. The sorbent was made with a mass ratio of chitosan:alginate:carbon = 1:1:1. CAC sorbents were characterized using FTIR for functional group analysis while SEM-EDX characterization was performed to determine surface morphology and percentage of elements. SPE parameters were optimized for adsorption-desorption efficiency under various conditions, i.e. of pH 5, Cu(II) concentration of 4 mg/L, the flow rate of Cu(II), and Na2EDTA eluent at 5 mL/min, the volume of Cu(II) sample and Na2EDTA eluent 25 mL and 1.0 M of Na2EDTA eluent concentration. Applying CAC-based SPE for Cu(II) analysis in water samples at optimum conditions gave 80.9–83.6% recovery. In bottled drinking water samples, a preconcentration factor of 2.5–5 times was obtained, and the Cu(II) concentration of 0.017– 0.020 mg/L was detected.

Item Type: Article
Additional Information: Validated by Sri Wulan
Uncontrolled Keywords: Alginates, Chitosan, Solid-phase extraction, Preconcentration, Cu(II), Solid phases, Copper
Subjects: Chemistry
Chemistry > Analytical Chemistry
Depositing User: - Een Rohaeni
Date Deposited: 17 Mar 2024 01:07
Last Modified: 17 Mar 2024 01:07
URI: https://karya.brin.go.id/id/eprint/22453

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