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Separations, Volume 10, Issue 2

February 2023 - 82 articles

Cover Story: Nowadays, in order to reduce pollution, it is essential to find a second life for waste. In this work, a sorbent has been prepared starting from wastepaper to which graphene oxide and Fe2O3 have been added. Using a carbothermal reaction, a nanocomposite sorbent based on rG-activated carbon-Fe3O4 was obtained to be used as a sorbent in the magnetic dispersive solid-phase extraction of antibiotics from human plasma. The morphological and structural features of the prepared “rG-AC-Fe3O4” samples were investigated via thermal analysis, X-ray diffraction, Raman spectroscopy, and scanning electron microscopy. Parameters affecting magnetic dispersive solid-phase extraction were optimized one variable at a time (OVAT). Finally, a UHPLC-PDA method was developed and applied for the determination of antibiotics. View this paper
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Articles (82)

  • Article
  • Open Access
3 Citations
3,346 Views
14 Pages

20 February 2023

The isomeric metabolites τ- and π-methylhistidine (formerly referred to as 3- and 1-methylhistidine) are known biomarkers for muscle protein breakdown and meat protein intake, frequently used in studies involving humans and animals. In the pre...

  • Review
  • Open Access
14 Citations
5,350 Views
27 Pages

19 February 2023

The present work deals with the continuous flow systems based on renewable resource biosorbents towards the green removal of various categories of chemical pollutants from aqueous media. The opening discussions are focused on: (a) renewable resources...

  • Review
  • Open Access
8 Citations
3,959 Views
23 Pages

Contaminant Cocktails of High Concern in Honey: Challenges, QuEChERS Extraction and Levels

  • Mariana Lamas,
  • Francisca Rodrigues,
  • Maria Helena Amaral,
  • Cristina Delerue-Matos and
  • Virgínia Cruz Fernandes

18 February 2023

Environmental pollution is a crucial problem in our society, having nowadays a better understanding of its consequences, which include the increase of contaminant cocktails present in the environment. The contamination of honeybees can occur through...

  • Article
  • Open Access
7 Citations
3,902 Views
13 Pages

Chemical Profiling of Significant Antioxidant and Phytotoxic Microwave-Extracted Essential Oil from Araucaria heterophylla Resin

  • Ahmed M. Abd-ElGawad,
  • Ibrahim Saleh,
  • Mohamed H. Abd El-Razek,
  • Asmaa S. Abd Elkarim,
  • Yasser A. El-Amier,
  • Tarik A. Mohamed,
  • Abd El-Nasser G. El Gendy,
  • Sherif M. Afifi,
  • Tuba Esatbeyoglu and
  • Abdelsamed I. Elshamy

18 February 2023

Due to the various hazards of using synthetic chemical compounds in pharmaceutics, agriculture, and industry, scientists and researchers do their best to explore and assess new green natural compounds from natural resources with potent activity. The...

  • Article
  • Open Access
2 Citations
2,073 Views
11 Pages

18 February 2023

The direct use of nanosorbents for water purification is limited due to their aggregation and the lack of techniques for their recovery from natural waters. To overcome these problems, the affixation of nanomaterials onto bulk, non-mobile supports ha...

  • Review
  • Open Access
7 Citations
3,968 Views
16 Pages

Condensed Phase Membrane Introduction Mass Spectrometry: A Direct Alternative to Fully Exploit the Mass Spectrometry Potential in Environmental Sample Analysis

  • Veronica Termopoli,
  • Maurizio Piergiovanni,
  • Davide Ballabio,
  • Viviana Consonni,
  • Emmanuel Cruz Muñoz and
  • Fabio Gosetti

17 February 2023

Membrane introduction mass spectrometry (MIMS) is a direct mass spectrometry technique used to monitor online chemical systems or quickly quantify trace levels of different groups of compounds in complex matrices without extensive sample preparation...

  • Article
  • Open Access
11 Citations
3,159 Views
14 Pages

A Validated, Stability-Indicating, Eco-Friendly HPTLC Method for the Determination of Cinnarizine

  • Mohammed H. Alqarni,
  • Faiyaz Shakeel,
  • Ahmed I. Foudah,
  • Tariq M. Aljarba,
  • Wael A. Mahdi,
  • Fatma M. Abdel Bar,
  • Sultan Alshehri and
  • Prawez Alam

17 February 2023

The eco-friendly high-performance thin-layer chromatographic (HPTLC) approaches for measuring cinnarizine (CIN) are scant in reported databases. As a result, the current work has developed and validated an eco-friendly HPTLC technique for assessing C...

  • Article
  • Open Access
16 Citations
3,669 Views
15 Pages

Effect of Hydrothermal Conditions on Kenaf-Based Carbon Quantum Dots Properties and Photocatalytic Degradation

  • Nabilah Saafie,
  • Nonni Soraya Sambudi,
  • Mohd Dzul Hakim Wirzal and
  • Suriati Sufian

17 February 2023

The development of biomass-based CQD is highly attentive to enhancing photocatalytic performance, especially in secondary or ternary heterogeneous photocatalysts by allowing for smooth electron-hole separation and migration. In this study, kenaf-base...

  • Article
  • Open Access
6 Citations
3,212 Views
13 Pages

Green Automated Solid Phase Extraction to Measure Levofloxacin in Human Serum via Liquid Chromatography with Fluorescence Detection for Pharmacokinetic Study

  • Hager Ebrahim,
  • Heba Sonbol,
  • Monika Malak,
  • Ahmed Ali,
  • Yasmine Aboulella,
  • Ghada Hadad,
  • Walaa Zarad,
  • Samy Emara and
  • Lamyaa Bazan

17 February 2023

A simple, selective, rapid, sensitive and less costly green automated solid phase extraction bio-analytical high-performance liquid chromatographic-based technique with fluorescence detection (Aut-SPE-BA-HPLC-FL) for the quantification of levofloxaci...

  • Article
  • Open Access
2 Citations
2,558 Views
16 Pages

16 February 2023

In this study, the formation of natural gas liquid in gas distribution lines, particularly at regional stations, service boxes, customer installations, and gas meters, was investigated. The study aims to address the problems associated with natural g...

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Separations - ISSN 2297-8739