OOIR: Observatory of International Research

Papers

(The TQCC of Separation and Purification Reviews is 13. The table below lists those papers that are above that threshold based on CrossRef citation counts [max. 250 papers]. The publications cover those that have been published in the past four years, i.e., from 2022-05-01 to 2026-05-01.)

Article	Citations
Latest Development of Matrix Solid Phase Dispersion Extraction and Microextraction for Natural Products from 2015-2021	49
Microbial Polyhydroxyalkanoates: Recovery Methods, Biopolymer Processing, Characterization, and Potential Applications	42
Critical Analysis of Various Strategies for the Effective and Economical Separation and Purification of Butanol from ABE Fermentation	41
Ionic Liquids-Assisted Solvent Extraction of Precious Metals from Chloride Solutions	40
Fouling in Reverse Osmosis Desalination: Emphasis on Composite Fouling and Coprecipitation	35
Nanomaterials As Sorbents in Solid-Phase Extraction for Bioactive Compounds	32
Advancing Forward Osmosis Thin-Film Composite Membranes with Metal-Organic Framework: Strategies for Enhanced Performance and Efficiency	30
Pressure Swing Distillation: Heat Integration and Economics	27
Separation Performance Enhancement of Gas-Solid Cyclone Separators by Flow Control and Coupling Physical Fields	23
Adsorption-Based Separation of Rare Earth Elements Using Metal-Organic Frameworks: Sustainable Critical Material Recovery	23
Pyrometallurgical and Electrochemical Routes for Synthesis and Refining of Metallic Vanadium	20
Eco-Friendly Extraction: Innovations, Principles, and Comparison with Traditional Methods	20
Integration of Semi-Packed Columns in Gas Chromatography, Optimization, and Performances	19
Advances in the Applications of Mixed Matrix Membranes for Desulfurization of Transportation Fuels	18
Exploring the Future of Solar Stills: Recent Breakthroughs in Performance Enhancement	18
Separation Approaches and Practices for the Fractionation of Heavy Crude Oils and Residues: Where Do We Stand?	18
Innovations in CO ₂ Separation Technologies Using Polyetherimide-Based Membranes	16
Acridine Orange and Its Removal from Aqueous Solutions by Adsorption	16
Direct Thin Layer Chromatographic Enantioseparation of Active Pharmaceutical Ingredients via Non-Covalent Diastereomers	15
Purification Approaches of Biocatalyst Applied for Cellulosic Biomass Breakdown	14
Engineering Thin-Film Nanocomposite Membranes with 2D Nanomaterials for Water Purification: Progress, Challenges, and Future Perspectives	14
Surface Functionalized SAPO-34 for Mixed Matrix Membranes in CO ₂ /CH ₄ and CO ₂ /N	13
Progress and Perspective for Carbon Quantum Dots and Analogous Carbon-Based Nanomaterials in Augmenting Forward Osmosis Performance	13
Spillover Technique for Enhancement of Hydrogen Adsorption Capacity of Metal Organic Frameworks	13
Diuron Removal from Water by Adsorption: Fundamentals, Mechanism, Desorption, and Future Perspectives	13

Adsorptive Membranes for Arsenic Removal – Principles, Progress and Challenges