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Separations publishes Special Issues to create collections of papers on specific topics, with the aim of building a community of authors and readers to discuss the latest research and develop new ideas and research directions. Special Issues are led by Guest Editors, who are experts on the topic and all Special Issue submissions follow MDPI's standard editorial process. The journal’s Editor-in-Chief and/or designated Editorial Board Member will oversee Guest Editor appointments and Special Issue proposals, checking their content for relevance and ensuring the suitability of the material for the journal. The papers published in a Special Issue will be collected and displayed on a dedicated page of the journal’s website. Further information on MDPI's Special Issue polices and Guest Editor responsibilities can be found here. For any inquiries related to a Special Issue, please contact the Editorial Office.

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Comprehensive Separations of Complex Mixtures by Gas Chromatography/Mass Spectrometry (Volume II)

edited by

Bárbara Socas-Rodríguez

submission deadline 30 Jun 2024 | 1 articles | Viewed by 566

Keywords: comprehensive separation; food analysis; environmental analysis; biological analysis; gas chromatography– mass spectrometry

(This special issue belongs to the Section Chromatographic Separations)

Molecularly Imprinted Polymers for Separation and Purification

edited by Yang Cheng and Zhen Yan

submission deadline 30 Jun 2024 | Viewed by 365

Keywords: molecularly imprinted polymers; food samples; quantitative analysis; separation and extraction as well as purification; selectivity; high-performance liquid chromatography (HPLC) and related techniques; gas chromatography (GC) and related techniques as well as GC-MS; nanomaterials; chemosensors and fluorescence probe; high-performance liquid chromatography (HPLC) with mass spectrometry (HPLC-MS)

(This special issue belongs to the Section Materials in Separation Science)

Application of Chromatographic and Related Techniques in the Detection of Food Chemical Residues

edited by Silvia Valverde and María Teresa Martín

submission deadline 30 Jun 2024 | Viewed by 171

Keywords: chromatography; stationary phases; sample treatment; novel solvents; mass spectrometry; pesticides; fertilisers; emerging contaminants; food and supplements; green chemistry

(This special issue belongs to the Section Analysis of Food and Beverages)

Bioactive Compounds from Natural Sources: Extraction, Characterization, Evaluation and Application

edited by

Olivera Politeo

and Mejra Bektasevic

submission deadline 10 Jul 2024 | 5 articles | Viewed by 7095 | Submission Open

Keywords: natural products; secondary metabolites; isolation of natural compounds; gas chromatography; liquid chromatography; mass spectrometry; biological potential; biological application

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Separation and Recovery of Valuable Elements from Waste and Wastewater

edited by

Artin Hatzikioseyian

and

Pavlina Kousi

submission deadline 10 Jul 2024 | 3 articles | Viewed by 5903 | Submission Open

Keywords: separation; valuable elements; resources recovery; metal recovery; precious metals; critical elements; solid wastes; end-of-life products; valorisation; circular economy

(This special issue belongs to the Section Purification Technology)

Application of Magnetic Separation Technology in Green Production

edited by

Jiangang Ku

submission deadline 10 Jul 2024 | 2 articles | Viewed by 2478 | Submission Open

Keywords: magnetic separation; magnetic separator; magnetic flocculation; separation modeling; high gradient; quartz purification; Kaolin purification; non-metallic ore purification; lithium iron mica utilization; red mud utilization

(This special issue belongs to the Section Separation Engineering)

Carbon-Based Materials as Effective Adsorbents

edited by Bijay P. Chhetri

submission deadline 10 Jul 2024 | Viewed by 184 | Submission Open

Keywords: green chemistry; nanotechnology; innovation; water purification; catalyst development; materials sciences; environment pollution remediation; electrochemical separation; eco-friendly; natural-derived materials; chromatography

(This special issue belongs to the Section Materials in Separation Science)

Ion Exchange Mastery: Targeting Cationic and Anionic Species for Their Efficient Separations from Various Samples

edited by Irinel Adriana Badea and

Rodica Olar

submission deadline 10 Jul 2024 | Viewed by 115 | Submission Open

Keywords: ion exchange equilibrium; new synthetic resins; smart ion exchangers; chelating resins; mixed-mode stationary phases; ion exchange membranes; functionalized cyclodextrins; host-guest interactions; eco-friendly stationary phases; natural ion exchangers (i.e.; wool; chitosan; walnut shells); nanomaterials; carbon dots; contemporary environmental challenges; water treatment; desalination; nuclear technology; pharmaceutical field; innovative nanovectorized therapeutic systems; biomarkers; food; beverage; and chemical industries

(This special issue belongs to the Section Materials in Separation Science)

Advanced Functional Materials for Wastewater Treatment and Purification

edited by Tengyao Jiang and Wei Huang

submission deadline 20 Jul 2024 | 4 articles | Viewed by 6571 | Submission Open

Keywords: wastewater treatments; heavy metals; organic contaminants; porous materials; adsorption; composites

(This special issue belongs to the Section Materials in Separation Science)

SPME Procedures for GC-MS Analysis of Foods Contaminants and/or Packaging Materials

edited by

Nicoletta De Vietro

and

Antonella Maria Aresta

submission deadline 20 Jul 2024 | 1 articles | Viewed by 1863 | Submission Open

Keywords: SPME; GC– MS; food contaminants; food safety; packaging; shelf-life

(This special issue belongs to the Section Chromatographic Separations)

Isolation of Natural Compounds—Emphasis on Antioxidants' Purification

edited by

Aleksandar Shkondrov

submission deadline 20 Jul 2024 | 1 articles | Viewed by 1064 | Submission Open

Keywords: separation; antioxidant activity; chromatography; isolation; purification; extracts; phytochemistry; chemistry of natural compounds; extracts; biological activity; radical scavenging; pharmacognosy

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Forensic Toxicology: Biological Sampling and Development of Analytical Techniques

edited by

Luigi Tonino Marsella

submission deadline 20 Jul 2024 | 1 articles | Viewed by 602 | Submission Open

Keywords: GC-MS; LC-MS/MS; forensic toxicology; HRMS; chain of custody; specimen collection; alternative matrices; heavy metals; biological samples; drug seizures

(This special issue belongs to the Section Forensics/Toxins)

Removal and Recovery of Nitrogen and Phosphorus from Wastewater

edited by Qian **

submission deadline 30 Jul 2024 | 2 articles | Viewed by 3584 | Submission Open

Keywords: nutrient removal; resource recovery; biological wastewater treatment; chemical precipitation; electrochemistry; physical treatment; phosphorus release and recovery

(This special issue belongs to the Section Environmental Separations)

Extraction and Characterization of Bioactive Compounds from Plant and Natural Sources

edited by

José Manuel Romero-Márquez

and

Alfonso Varela-López

submission deadline 30 Jul 2024 | Viewed by 326 | Submission Open

Keywords: extraction; characterization; bioactive compounds; natural sources; nutraceutical; plant materia

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Analysis, Isolation and Biological Activities of Polyphenols from Terrestrial and Marine Sources

edited by

José Cheel

submission deadline 31 Jul 2024 | 4 articles | Viewed by 5707 | Submission Open

Keywords: antioxidants; bioactivity; conventional extraction; LC/MS; HPLC; flavonoids; structural elucidation; unconventional extraction; separation; polyphenols; liquid-liquid chromatography (CCC/CPC)

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Application of Deep Eutectic Solvents in Green Separation Chemistry

edited by Bušić Valentina and

Maja Molnar

submission deadline 10 Aug 2024 | 2 articles | Viewed by 3839 | Submission Open

Keywords: green separation process; DESs in extraction processes; chromatographic separation techniques; organic synthesis in DESs; DESs in industrial scales; molecular dynamics studies

(This special issue belongs to the Section Purification Technology)

Peptide Synthesis, Separation and Purification

edited by

Othman Al Musaimi

submission deadline 10 Aug 2024 | 2 articles | Viewed by 1891 | Submission Open

Keywords: hydrophobicity; retention time prediction; solubility; retention behavior; peptide separation; purification; denaturation

(This special issue belongs to the Section Chromatographic Separations)

Novel Methods for the Analysis of Active and Toxic Components in Food

edited by

Lorena González-Gómez

and

Sonia Morante Zarcero

submission deadline 10 Aug 2024 | Viewed by 143 | Submission Open

Keywords: food analysis; toxic compounds; bioactive compounds; micro-extractive methods; chromatography; food safety and quality; mass spectrometry; sample preparation; validated analytical methods; green methodologies

(This special issue belongs to the Section Analysis of Food and Beverages)

Separation Technology for Metals Recovery

edited by Katarzyna Leszczyńska-Sejda and Andrzej Chmielarz

submission deadline 10 Aug 2024 | Viewed by 105 | Submission Open

Keywords: hydrometallurgy; analytical technology; solvent extraction; ion exchange; membrane techniques; electrochemistry; pyrometallurgy

(This special issue belongs to the Section Purification Technology)

Adsorption and Remediation of Emerging Pollutants from Water and Soil

edited by **aoying Guo

submission deadline 20 Aug 2024 | 3 articles | Viewed by 1726 | Submission Open

Keywords: novel adsorbents; removal of emerging pollutants; emerging pollutant detection; remediation of water and soil pollution; environmental risks of emerging pollutants

(This special issue belongs to the Section Environmental Separations)

Bioelectrochemical Treatment and Purification of Wastewater

edited by Nuan Yang and Fei Guo

submission deadline 20 Aug 2024 | 1 articles | Viewed by 599 | Submission Open

Keywords: bioelectrochemical systems; bioelectrochemical treatment; wastewater treatment and purification; electrodes and reactor design; electricity generation; nitrogen removal; electroactive bacteria; conductive materials; biofilm formation

(This special issue belongs to the Section Purification Technology)

Photocatalytic Materials for Pollutant Removal by Degradation

edited by Antonietta Mancuso

submission deadline 20 Aug 2024 | Viewed by 173 | Submission Open

Keywords: photocatalysis; water treatment; air treatment; emerging pollutants; semiconductor materials; visible light; photocatalytic degradation

(This special issue belongs to the Section Environmental Separations)

Green Extraction Techniques of Bioactive Compounds from Natural Sources

edited by Liliana Mihalcea and

Mona Elena Popa

submission deadline 20 Aug 2024 | Viewed by 129 | Submission Open

Keywords: natural sources; bioactive compounds; supercritical extraction; subcritical water extraction; chromatography; spectrometry; ultrasound-assisted extraction; microwave-assisted extraction; pressurized liquid extraction; enzyme-assisted extraction; bioeconomy

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Advanced Research on Extraction and Analysis of Plant Extracts

edited by

Lina Raudonė

submission deadline 31 Aug 2024 | 4 articles | Viewed by 5102 | Submission Open

Keywords: phytochemistry; extraction; profiles; analytical markers; chromatography; plant extracts

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Advanced Nitrogen Removal Process in Adsorption and Removal of Pollutants

edited by **nyue Zhao and Li Lixin

submission deadline 31 Aug 2024 | 2 articles | Viewed by 4018 | Submission Open

Keywords: pollutant removal; advanced nitrogen removal; biological-based denitrification; microbial community; physicochemical technologies; pollutant monitoring

(This special issue belongs to the Section Environmental Separations)

Adsorption and Solar-Powered Decomposition for Removing Pollutants

edited by **ngming Ning

submission deadline 31 Aug 2024 | 1 articles | Viewed by 1182 | Submission Open

Keywords: organic pollutants; adsorption decomposition; solar energy; electrochemical separations; separation and decomposition technology; ecological environment purification

(This special issue belongs to the Section Environmental Separations)

Determination and Analysis of Volatiles by Solid-Phase Microextraction–Gas Chromatography

edited by

Marisabel Mecca

and

Maurizio D’Auria

submission deadline 31 Aug 2024 | Viewed by 138 | Submission Open

Keywords: extractives; VOCs; GC-MS; chemical characterization; SPME; on-fiber derivatization; on-site sampling

(This special issue belongs to the Section Chromatographic Separations)

Pollutant Removal and Nutrient/Energy Recovery from Wastewater

edited by Hongwei Sun

submission deadline 31 Aug 2024 | Viewed by 78 | Submission Open

Keywords: wastewater; contaminants; purification; nutrients; recovery; energy; oxidation; adsorption; membrane separation; catalysis

(This special issue belongs to the Section Environmental Separations)

Research Progress in Separation and Extraction of Ferrous and Non-ferrous Metals

edited by Wei Zhang, Juhua Zhang, Xuefeng She and Yun Li

submission deadline 10 Sep 2024 | 3 articles | Viewed by 4415 | Submission Open

Keywords: separation; extraction; ferrous metal; non-ferrous metal; physical chemistry

(This special issue belongs to the Section Purification Technology)

Research Progress for Isolation of Plant Active Compounds

edited by

Huaxiang Li

and Yi Li

submission deadline 10 Sep 2024 | 3 articles | Viewed by 3452 | Submission Open

Keywords: plants; active compounds; extraction; isolation; identification; molecular structure; chromatography; mass spectrometry; nuclear magnetic resonance analysis; biological activity

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Emerging Analytical Methods for Detection and Separation of Environmental Pollutants and Food Contaminants

edited by

Marios G. Kostakis

, Niki Maragou and

Natasa Kalogiouri

submission deadline 10 Sep 2024 | Viewed by 177 | Submission Open

Keywords: persisent organic pollutants; emerging contaminants; high-resolution mass spectrometry; low-resolution mass spectrometry; tandem mass spectrometry; food analysis; environmental analysis; liquid chromatography; gas chromatography; sample preparation techniques

(This special issue belongs to the Section Chromatographic Separations)

Isolation and Identification of Biologically Active Natural Compounds

edited by Iulia Varzaru and

Arabela Elena Untea

submission deadline 10 Sep 2024 | Viewed by 170 | Submission Open

Keywords: plants; by-products; bioactive compounds; isolation methods; chromatography; antioxidant activity; antimicrobial activity; bioavailable compounds; nutraceuticals

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

New Extraction Systems for the Separation of Natural Compounds

edited by Ying Zhang

submission deadline 10 Sep 2024 | Viewed by 65 | Submission Open

Keywords: antioxidants; functional foods; bioactive components; separation engineering; biological activities

(This special issue belongs to the Section Separation Engineering)

Chromatography for the Separation and Detection of Metabolites

edited by

Emanuela Salviati

and Manuela Giovanna Basilicata

submission deadline 20 Sep 2024 | 1 articles | Viewed by 629 | Submission Open

Keywords: chromatography (LC; GC); mass spectrometry; hyphenated techniques; LC-MS; GC-MS; metabolomics; lipidomics; natural products; chemical finger-printing; pharmaceutical applications

(This special issue belongs to the Section Chromatographic Separations)

Impact of Liquid Chromatography in Pharmaceutical Research and Beyond

edited by W John Lough

submission deadline 20 Sep 2024 | Viewed by 167 | Submission Open

Keywords: LC biochemical analysis; LC-MS; LC drug bioanalysis; LC chiral separations; api analysis by LC; LC drug product analysis; LC of biologicals

(This special issue belongs to the Section Analysis of Natural Products and Pharmaceuticals)

Membranes Used in Water Purification

edited by

Kayo Santana Barros

and

Valentín Pérez-Herranz

submission deadline 20 Sep 2024 | Viewed by 83 | Submission Open

Keywords: microfiltration; ultrafiltration; nanofiltration; reverse osmosis; forward osmosis; pressure-retarded osmosis; membrane distillation; electrodialysis; fouling; water purification

(This special issue belongs to the Section Purification Technology)

New and Modified Polymers for Detection and Removal of Pollutants from Water and Air

edited by Aleksandra Nastasović and

Bojana Marković

submission deadline 20 Sep 2024 | Viewed by 70 | Submission Open

Keywords: polymers and composites; molecularly imprinted polymers; adsorption mechanism; thermodynamic and kinetic analysis of adsorption; quantum modeling and simulation; radionuclides; organic and inorganic pollutants; CO2 capture; gas separation

(This special issue belongs to the Section Materials in Separation Science)

Green Separation and Purification Technology

edited by

Shun Yao

submission deadline 20 Sep 2024 | Viewed by 65 | Submission Open

Keywords: greeness; separations; solvents; materials; assessments

(This special issue belongs to the Section Separation Engineering)

Research on New Technology and Equipment of Multiphase Flow Separation

edited by Chencan Du and Yubin Wang

submission deadline 20 Sep 2024 | Viewed by 60 | Submission Open

Keywords: multiphase flow; separation technology; equipment design; process intensification; fluid dynamics; computational modeling; mass transfer; sustainable processes; environmental impact

(This special issue belongs to the Section Separation Engineering)

Separation Technology for Solid Waste Treatment and Recycling

edited by Ying Huang and Kazuyuki Oshita

submission deadline 30 Sep 2024 | Viewed by 224 | Submission Open

Keywords: solid waste; recycling; rare metals; crude oil; separation techniques

(This special issue belongs to the Section Separation Engineering)

Application of Membrane Materials for Gas/Chemical Separation

edited by Zhihao Si

submission deadline 30 Sep 2024 | Viewed by 133 | Submission Open

Keywords: membrane fabrication; membrane modification; membrane characterization; membrane application; membrane process

(This special issue belongs to the Section Separation Engineering)

Application of Advanced Oxidation Technology in Wastewater Purification

edited by

Daniela Šojić Merkulov

Nina L. Finčur

and

Predrag Putnik

submission deadline 30 Sep 2024 | Viewed by 94 | Submission Open

Keywords: environmental protection; advanced oxidation technology; photocatalysis; sonophotocatalysis; sonolysis; nanomaterials; sustainable synthesis; sources of irradiation; organic pollutants

(This special issue belongs to the Section Purification Technology)

Chemical Product Separation and Energy Conversion Research

edited by

Weisong Li

submission deadline 30 Sep 2024 | Viewed by 71 | Submission Open

Keywords: microwave catalysis; reforming; H2 production; energy conversion; selective heating; pyrolysis; carbon nanomaterials

(This special issue belongs to the Section Analysis of Energies)

Removal of Organic Pollutants from Aqueous Systems

edited by Li Yan

submission deadline 10 Oct 2024 | Viewed by 63 | Submission Open

Keywords: organic pollutants; PFAS; adsorption; degradation; mechanisms; modeling; aquatic chemistry; interfacial processes; advanced materials; water treatment

(This special issue belongs to the Section Environmental Separations)

Applications of Chromatography in Pharmaceutical Analysis and Forensic Toxicology

edited by

Sara Casati

and

Marica Orioli

submission deadline 10 Oct 2024 | Viewed by 53 | Submission Open

Keywords: liquid chromatography; drug analysis; forensic analysis; toxicological analysis; sample preparation; method validation; method developement; biological matrices; pharmaceutical preparation

(This special issue belongs to the Section Forensics/Toxins)

Application of Biosorbents in Environmental Purification

edited by

Ventura Castillo Ramos

and

Manuel Sánchez-Polo

submission deadline 15 Oct 2024 | 1 articles | Viewed by 964 | Submission Open

Keywords: biosorbent; biomass-derived material; water treatment; air purification; gas separation; soil remediation; pollutant removal; sorption

(This special issue belongs to the Section Environmental Separations)

Application of Liquid Chromatography in Pharmaceutical and Toxicological Analysis

edited by

Maria Nieddu

and

Elena Baralla

submission deadline 20 Oct 2024 | 4 articles | Viewed by 6838 | Submission Open

Keywords: liquid chromatography; drug analysis; forensic analysis; toxicological analysis; residues analysis; sample preparation; method validation; biological matrices; pharmaceutical preparation

(This special issue belongs to the Section Chromatographic Separations)

Application of Biochar in Degradation and Purification

edited by Bo Zhang

submission deadline 20 Oct 2024 | Viewed by 164 | Submission Open

Keywords: novel bioremediation techniques about both organic pollutants and heavy metals in soils; biochar-mediated bacterial biofilms; evolution of soil microbes under different stress in soils; interactions between the virus and bacteria in soils; enhancement of soil fertility

(This special issue belongs to the Section Environmental Separations)

Separation and Purification of Functional Components of Foods and Herbs

edited by Huafeng Zhang

submission deadline 20 Oct 2024 | Viewed by 112 | Submission Open

Keywords: separation and purification; functional components; bioactive substances; green extraction; quantitative analysis; health benefits; biological activities

(This special issue belongs to the Section Analysis of Food and Beverages)

Chemical and Contaminant Residue Analysis via Chromatography

edited by

Evangelia Tzanetou

and

Konstantinos M. Kasiotis

submission deadline 20 Oct 2024 | Viewed by 43 | Submission Open

Keywords: liquid chromatography; gas chromatography; contaminants; residues; volatile organic compounds; mass spectrometry; food; environment; biological fluids; regulatory compliance; risk assessment

(This special issue belongs to the Section Chromatographic Separations)

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