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4.8

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Journal of Multidisciplinary Applied Natural Science

e-ISSN: 2774-3047


v. 6 n. 1 (2026) Articles https://doi.org/10.47352/jmans.2774-3047.318

Optimization of Graphene Oxide-Based Dispersive Solid-Phase Extraction from Cassava Peel Using Response Surface Methodology for Determining Ciprofloxacin Antibiotic Residues

Rinawati Rinawati Elsa Fitrianingsih Dian Rifani Muthia Siti Salwa Khotijah Agung Abadi Kiswandono Widiarti Widiarti Achmad Gus Fahmi Tarmizi Taher

Informações do autor

Rinawati Rinawati

https://orcid.org/0000-0002-4245-1729
  • rinawati@fmipa.unila.ac.id
  • Departement of Chemistry, Universitas Lampung, Bandar Lampung-35145 (Indonesia)
  • Biografia não informada.

Informações do autor

Elsa Fitrianingsih

https://orcid.org/0000-0002-5375-352X

Informações do autor

Dian Rifani Muthia

https://orcid.org/0009-0003-0380-9702
  • dianrm910@gmail.com
  • Departement of Chemistry, Universitas Lampung, Bandar Lampung-35145 (Indonesia)
  • Biografia não informada.

Informações do autor

Siti Salwa Khotijah

https://orcid.org/0009-0005-2348-7231

Informações do autor

Agung Abadi Kiswandono

https://orcid.org/0000-0002-8145-1959

Informações do autor

Widiarti Widiarti

https://orcid.org/0000-0002-2579-8763
  • widiarti08@gmail.com
  • Department of Mathematics, Universitas Lampung, Bandar Lampung-35145 (Indonesia)
  • Biografia não informada.

Informações do autor

Achmad Gus Fahmi

https://orcid.org/0000-0002-6574-8963
  • achmad.fahmi@km.itera.ac.id
  • Cosmetic Engeneering Study Program, Sumatra Institute of Technology, Lampung Selatan-35635 (Indonesia)
  • Biografia não informada.

Informações do autor

Tarmizi Taher

https://orcid.org/0000-0002-3888-7730
  • tarmizi.taher@tl.itera.ac.id
  • Enviromental Engineering Study Program, Sumatra Institute of Technology, Lampung Selatan-35635 (Indonesia)
  • Biografia não informada.

Publicado em: novembro 02, 2025

[1]
R. Rinawati, “Optimization of Graphene Oxide-Based Dispersive Solid-Phase Extraction from Cassava Peel Using Response Surface Methodology for Determining Ciprofloxacin Antibiotic Residues”, J. Multidiscip. Appl. Nat. Sci., vol. 6, nº 1, p. 220–236, nov. 2025.

Resumo

Pharmaceutical waste containing antibiotics is a major contributor to water pollution. The widespread use of ciprofloxacin (CIP), an antibiotic, causes residues to accumulate in the environment, especially in aquatic habitats, causing ecological damage. A dispersive solid-phase extraction (DSPE) method was selected to trace CIP residues in the natural environment. Graphene oxide (GO) serves as an absorbent in the DSPE procedure. To achieve the best results, an evaluation is needed to identify the most favorable absorption conditions for CIP. This study used a modified Hummers method to produce GO from cassava peel waste, which contains a lot of carbon and cellulose. Then the GO was characterized by Fourier transform infrared (FTIR) spectroscopy, X-ray diffraction (XRD), Raman spectroscopy, and scanning electron microscopy (SEM). The response surface method (RSM) was based on a Box-Behnken Design (BBD). The CIP adsorption conditions were determined by considering the adsorbent dosage, pH, CIP concentration, and contact time. The adsorption capacity of 99.87% was achieved under the following conditions: pH 4.4; contact time of 35.2112 min; concentration of CIP 619.119 ppb; and adsorbent dosage 23.3237 mg. The method demonstrated linearities R2 of 0,9987 with a detection limit of 4.05 ppb and a quantification limit of 13.50 ppb, and %RSD in the range 3–5%, and recovery of 98.90%. It confirms that GO from cassava peel waste has the potential to be an adsorbent for the antibiotic CIP. This study provides a novel approach by employing cassava peel-derived GO for DSPE, achieving nearly complete CIP removal (99.87%), thereby offering a sustainable and highly sensitive method for environmental monitoring.

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