OOIR: Observatory of International Research

Papers

(The TQCC of Separation and Purification Reviews is 11. 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 2021-12-01 to 2025-12-01.)

Article	Citations
Microbial Polyhydroxyalkanoates: Recovery Methods, Biopolymer Processing, Characterization, and Potential Applications	46
Critical Analysis of Various Strategies for the Effective and Economical Separation and Purification of Butanol from ABE Fermentation	37
Latest Development of Matrix Solid Phase Dispersion Extraction and Microextraction for Natural Products from 2015-2021	31
Fouling in Reverse Osmosis Desalination: Emphasis on Composite Fouling and Coprecipitation	30
Nanomaterials As Sorbents in Solid-Phase Extraction for Bioactive Compounds	28
Ionic Liquids-Assisted Solvent Extraction of Precious Metals from Chloride Solutions	27
Advancing Forward Osmosis Thin-Film Composite Membranes with Metal-Organic Framework: Strategies for Enhanced Performance and Efficiency	26
Green Extraction Methods for Isolation of Bioactive Substances from Coffee Seed and Spent	25
Eco-Friendly Extraction: Innovations, Principles, and Comparison with Traditional Methods	24
Separation Performance Enhancement of Gas-Solid Cyclone Separators by Flow Control and Coupling Physical Fields	24
Pressure Swing Distillation: Heat Integration and Economics	23
Pyrometallurgical and Electrochemical Routes for Synthesis and Refining of Metallic Vanadium	21
Integration of Semi-Packed Columns in Gas Chromatography, Optimization, and Performances	20
Advances in the Applications of Mixed Matrix Membranes for Desulfurization of Transportation Fuels	19
Separation Approaches and Practices for the Fractionation of Heavy Crude Oils and Residues: Where Do We Stand?	17
Exploring the Future of Solar Stills: Recent Breakthroughs in Performance Enhancement	16
Acridine Orange and Its Removal from Aqueous Solutions by Adsorption	15
Innovations in CO ₂ Separation Technologies Using Polyetherimide-Based Membranes	15
Direct Thin Layer Chromatographic Enantioseparation of Active Pharmaceutical Ingredients via Non-Covalent Diastereomers	15
Surface Functionalized SAPO-34 for Mixed Matrix Membranes in CO ₂ /CH ₄ and CO ₂ /N	14
Extraction and Purification Processes of Sinapic Acid Derivatives from Rapeseed and Mustard Seed By-Products	13
Purification Approaches of Biocatalyst Applied for Cellulosic Biomass Breakdown	12
Spillover Technique for Enhancement of Hydrogen Adsorption Capacity of Metal Organic Frameworks	11
Progress and Perspective for Carbon Quantum Dots and Analogous Carbon-Based Nanomaterials in Augmenting Forward Osmosis Performance	11
Diuron Removal from Water by Adsorption: Fundamentals, Mechanism, Desorption, and Future Perspectives	11

Adsorptive Membranes for Arsenic Removal – Principles, Progress and Challenges	11
Downstream Techniques for Lactic Acid Purification Produced from the Biorefinery Approach	11