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Separations, Volume 11, Issue 5

2024 May - 29 articles

Cover Story: Due to the coexistence of Al3+ and RE3+ and their similar properties, their separation is difficult. In this study, electrochemically regulated hydrolysis was used to separate Al3+ from the rare earth chloride solution. By controlling the current density, the rate of hydroxyl ion production was regulated, and the selective separation was achieved according to the precipitation order. By altering the temperature, current density, pH, and other parameters, the removal rate of aluminum reached 88.35%, and the loss rate of rare earth was only 5.99%. Compared with the traditional neutralization hydrolysis, this new process showed higher efficiency and lower rare earth loss rate. No reagent was consumed for the new process, which made it more efficient and cleaner, providing a new idea for removing aluminum from rare earth solutions. View this paper
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Articles (29)

  • Article
  • Open Access
15 Citations
5,554 Views
19 Pages

Polyphenols from Sage Leaves (Salvia officinalis L.): Environmentally Friendly Extraction under High Hydrostatic Pressure and Application as a Corrosion Inhibitor for Tinplate

  • Maja Dent,
  • Regina Fuchs-Godec,
  • Sandra Pedisić,
  • Dorotea Grbin,
  • Verica Dragović-Uzelac,
  • Damir Ježek and
  • Tomislav Bosiljkov

Due to the diversity of organic molecular structures present in sage extract, sage extract is a promising potential source of a cheap and effective biodegradable green corrosion inhibitor for tinplate in 3% NaCl solution, which was evaluated in this...

(This article belongs to the Special Issue Bioactive Compounds from Natural Sources: Extraction, Characterization, Evaluation and Application)
  • Article
  • Open Access
10 Citations
4,234 Views
10 Pages

Characterization and Quantitation of Anthocyanins of the Pigmented Tea Cultivar TRI 2043 (Camellia sinensis L.) from Sri Lanka

  • Philipp Hopfstock,
  • Pitumpe Appuhamilage Nimal Punyasiri,
  • Mats Kiene,
  • Jeevan Dananjava Kottawa-Arachchi,
  • Recep Gök and
  • Peter Winterhalter

Tea leaves are rich in diverse bioactive compounds. The tea accession TRI 2043 is unique due to its pigmented leaves caused by anthocyanins, clonal origin, resistance to blister blight disease, and high pubescence density. Because of its peculiarity,...

(This article belongs to the Special Issue Bioactive Compounds in Foods: Separation, Extraction and Application)
  • Article
  • Open Access
3 Citations
5,018 Views
18 Pages

Efficient Quality Control of Peptide Pools by UHPLC and Simultaneous UV and HRMS Detection

  • Gaby Bosc-Bierne,
  • Shireen Ewald,
  • Oliver J. Kreuzer and
  • Michael G. Weller

Peptide pools consist of short amino acid sequences and have proven to be versatile tools in various research areas in immunology and clinical applications. They are commercially available in many different compositions and variants. However, unlike...

(This article belongs to the Special Issue Peptide Synthesis, Separation and Purification)
  • Communication
  • Open Access
2 Citations
3,423 Views
10 Pages

Coordination Ion Spray for Analysis of the Growth Hormones Releasing Peptides in Urine—An Application Study

  • Azamat Temerdashev,
  • Elina Gashimova,
  • Alice Azaryan,
  • Yu-Qi Feng and
  • Sanka N. Atapattu

In this article, a comparison of ionization techniques is provided and discussed. Conventional liquid chromatography with an electrospray ionization source shows higher robustness and repeatability in comparison with liquid chromatography coupled wit...

(This article belongs to the Topic Application of Liquid Chromatography-Mass Spectrometry and Related Techniques)
  • Article
  • Open Access
3 Citations
5,325 Views
11 Pages

Atorvastatin (ATV) is a well-established lipid-lowering agent. ATV has two stereogenic centers, and of the four possible stereoisomers, only the (3R,5R) form is used therapeutically. The European Pharmacopoeia (EP) monograph 2022 for ATV calcium salt...

(This article belongs to the Special Issue Application of Liquid Chromatography in Pharmaceutical and Toxicological Analysis)
  • Article
  • Open Access
3 Citations
2,196 Views
11 Pages

Exercise reduces the risk of inflammatory diseases by modulating different tissue and cell types, including those within the gastrointestinal tract. Obtaining a more comprehensive understanding of pathophysiology requires monitoring of dynamic change...

(This article belongs to the Section Materials in Separation Science)
  • Review
  • Open Access
7 Citations
4,699 Views
20 Pages

Essential oils (EOs) are vital secondary metabolites in plants. They have garnered substantial attention owing to their distinct flavors and desirable attributes, including potent antioxidant, antibacterial, and antitumor properties. Nevertheless, th...

(This article belongs to the Section Analysis of Natural Products and Pharmaceuticals)
  • Article
  • Open Access
12 Citations
7,422 Views
16 Pages

Feasibility of Different Methods for Separating n-Hexane and Ethanol

  • Aleksandra Sander,
  • Ana Petračić,
  • Marko Rogošić,
  • Mirela Župan,
  • Leonarda Frljak and
  • Matija Cvetnić

Conventional distillation methods cannot effectively separate the components of an azeotropic mixture since both phases have the same composition, thereby preventing further separation. Additional techniques such as pressure swing distillation or dis...

(This article belongs to the Section Purification Technology)
  • Article
  • Open Access
7 Citations
3,227 Views
16 Pages

Characterization of the SPIRITAS: A Disposable Sampling Setup for Volatile Organic Compound Collection and Analysis

  • David J. Mager,
  • Yoni E. van Dijk,
  • Özgü Varan,
  • Susanne J. H. Vijverberg,
  • Suzanne W. J. Terheggen-Lagro,
  • Anke-Hilse Maitland-van der Zee,
  • Hettie M. Janssens and
  • Paul Brinkman

Analyzing exhaled breath for volatile organic compounds (VOCs) using thermal desorption–gas chromatography–mass spectrometry (TD-GC-MS) offers a non-invasive diagnostic approach for various diseases. Despite its promise, the method faces...

(This article belongs to the Section Chromatographic Separations)
  • Article
  • Open Access
5 Citations
5,795 Views
17 Pages

Aluminum Removal from Rare Earth Chloride Solution through Regulated Hydrolysis via Electrochemical Method

  • Yaoyao Zhu,
  • Jian Li,
  • Dongyue Xie,
  • Hui Zhang,
  • Man Li,
  • Binfeng Xu,
  • Xuxia Zhang,
  • Yangyang Xie and
  • Tao Qi

Due to the coexistence of Al3+ and RE3+ and their similar properties, the separation of aluminum from rare earths is difficult. In this study, selective precipitation was used to separate aluminum from rare earth chloride solution via electrochemical...

(This article belongs to the Section Purification Technology)
  • Article
  • Open Access
6 Citations
1,836 Views
16 Pages

A Study of the Elemental Profiles of Wines from the North-Eastern Coast of the Black Sea

  • Lev A. Oganesyants,
  • Alexandr L. Panasyuk,
  • Dmitriy A. Sviridov,
  • Olesya S. Egorova,
  • Dilyara R. Akbulatova,
  • Mikhail Y. Ganin,
  • Aleksey A. Shilkin and
  • Alexandr A. Il’in

Due to the increasing consumer interest in wines with a controlled place of origin, PGI (Protected Geographical Indication) and PDO (Protected Designation of Origin), the most acute question is how to identify them. One of the most effective ways to...

(This article belongs to the Section Analysis of Food and Beverages)
  • Article
  • Open Access
6 Citations
3,519 Views
12 Pages

In order to further develop the commercial use of Melaleuca bracteata (F. Muell), this report studied the extraction of essential oil from Melaleuca bracteata (F. Muell) leaves using ultrasonic pretreatment, cellulase-inorganic salt soaked and combin...

(This article belongs to the Topic Discovery of Bioactive Compounds from Natural Organisms and Their Molecular Mechanisms against Diseases)
  • Article
  • Open Access
22 Citations
7,599 Views
16 Pages

Traditional lithium hydroxide production techniques, like lithium sulfate and lithium carbonate causticizing methods, suffer from drawbacks including high specific energy consumption, time-consuming processes, and low recovery rates. The conversion o...

(This article belongs to the Section Purification Technology)
  • Article
  • Open Access
23 Citations
5,348 Views
16 Pages

In this study, eleven kinds of flavonoids were identified from F. tataricum bran (FTB) by UPLC-Q-TOF-MS, and HPLC-DAD analysis revealed that four compounds, including rutin, quercetin, kaempferol, and nicotiflorin, were the most significant component...

(This article belongs to the Special Issue Extraction and Analysis of Chemical Compositions of Natural Products and Plants)
  • Article
  • Open Access
5 Citations
2,688 Views
16 Pages

Levofloxacin (LFX), which is difficult to degrade effectively due to its molecular stability, has become an problem that needs to be solved urgently. The advanced oxidation technology of persulfate has received increasing attention from researchers....

(This article belongs to the Section Environmental Separations)
  • Article
  • Open Access
5 Citations
2,330 Views
13 Pages

Aqueous two-phase extraction (APTE) stands out as an environmentally friendly technique for the separation of metal ions. The separation of Re (VII) and Mo (VI) in an aqueous solution was investigated using a novel aqueous two-phase system (ATPS) con...

(This article belongs to the Topic Advanced Processes and Technologies for Wastewater: Collection, Treatment, and Resource)
  • Review
  • Open Access
14 Citations
9,219 Views
24 Pages

Cyclodextrin–based porous materials have been widely applied in removing various organic pollutants from water environments, due to their unique physical and chemical properties, like the size–matching effect and hydrophobic interaction....

(This article belongs to the Section Environmental Separations)
  • Article
  • Open Access
7 Citations
3,580 Views
18 Pages

Decoding the Volatile Profile of White Romanian Fetească Wines

  • Fulvia-Ancuța Manolache,
  • Denisa-Eglantina Duță,
  • Gabriela Daniela Criveanu-Stamatie,
  • Teodora-Alexandra Iordache and
  • Maria-Cristina Todașcă

The wine’s volatilome, most of the time, defines not only its aroma, but also, its major attributes. In the case of wines, the authentication process has become imperative, in light of increased production of alcoholic beverages; consequently,...

(This article belongs to the Topic Advances in Analysis of Food and Beverages)
  • Article
  • Open Access
2 Citations
8,736 Views
15 Pages

Background: LC-MS is an ever-increasingly used methodology for clinical applications. Due to the superior selectivity and sensitivity, in certain situations, it can offer an advantage or be the only option for diagnostics and biomonitoring applicatio...

(This article belongs to the Special Issue Analysis and Bioanalysis of Pharmaceuticals: Sample Preparation and Chromatography)
  • Article
  • Open Access
3 Citations
3,852 Views
12 Pages

Fertilizers’ Impact on Grassland in Northeastern Romania

  • Otilia A. Culicov,
  • Doina Tarcau,
  • Inga Zinicovscaia,
  • Octavian G. Duliu,
  • Mihai Stavarache and
  • Vasile Vintu

In order to obtain more data concerning the influence of fertilizers (organic and mineral) on different forage plants in the northeastern Romanian grassland, the mass fractions of 14 essential, enzymatic, or toxic elements were determined by instrume...

(This article belongs to the Section Analysis of Food and Beverages)
  • Article
  • Open Access
6 Citations
3,262 Views
11 Pages

Low P-containing wastewaters (LPWs) exhibit huge P recovery potential, considering their larger volume. P recovery via CaP crystallization using apatite as seed is documented as being potentially well suited for LPWs. However, its responsible mechani...

(This article belongs to the Section Environmental Separations)
  • Article
  • Open Access
6 Citations
4,588 Views
17 Pages

Formation Mechanism of Deposits in Rotary Kiln during Steelmaking Dust Carbothermic Recycling

  • Xiaobo Min,
  • Luyu Huang,
  • Maixin Yu,
  • Yunyan Wang,
  • Yong Ke,
  • Cong Peng,
  • Xu Yan,
  • Qingyu Huang and
  • Yun Li

Rotary kiln has been widely used in hazardous waste treatment because of its strong adaptability to raw materials, high productivity, and simple processing technology. However, the formation of deposits reduces its performance period and profitabilit...

(This article belongs to the Section Separation Engineering)
  • Article
  • Open Access
5 Citations
4,208 Views
18 Pages

Multiplex Detection of Seven Staphylococcal Enterotoxins Using Liquid Chromatography–Mass Spectrometry Combined with a Novel Capture Molecule

  • Jing Lv,
  • Tingting Liu,
  • Xinyu Fang,
  • Songyang Han,
  • Lina Dong,
  • Jiaxin Li,
  • Jing Wang,
  • Jinglin Wang,
  • Shan Gao and
  • Wenwen Xin
  • + 1 author

Food poisoning caused by Staphylococcal enterotoxins (SEs) is prevalent globally, making efficient detection of these toxins very important. Traditionally, liquid chromatography–mass spectrometry required immunosorbent enrichment by magnetic be...

(This article belongs to the Topic Application of Liquid Chromatography-Mass Spectrometry and Related Techniques)
  • Article
  • Open Access
7 Citations
4,088 Views
15 Pages

Exploring Varied (Green) Extraction Methods to Optimize Galia Melon Peel Antioxidant Potential

  • Vassileios Dimtsas,
  • Anastasia Douma,
  • Dimitra Soukia,
  • Theodoros Chatzimitakos,
  • Vassilis Athanasiadis,
  • Konstantina Kotsou,
  • Eleni Bozinou and
  • Stavros I. Lalas

Cucumis melo L. (C. melo), commonly known as the melon, is a widely cultivated tropical fruit associated with nutritional benefits and bioactive properties. With global production reaching 40 million tons annually, the fruit processing industry gener...

(This article belongs to the Section Purification Technology)
  • Article
  • Open Access
1 Citations
5,056 Views
12 Pages

Pomegranate Juice Clarification Using Ultrafiltration: Influence of the Type of Variety and Degree of Ripeness

  • Asunción M. Hidalgo,
  • José A. Macario,
  • Marta Abellán-Baeza,
  • Teresa Sánchez-Moya,
  • Rubén López-Nicolás and
  • Fulgencio Marín-Iniesta

Fruit consumption guarantees the supply of most of the necessary nutrients for a complete and balanced diet, as it is a relevant source of vitamins, minerals, and antioxidants. In particular, pomegranate has very interesting medicinal properties, suc...

(This article belongs to the Section Analysis of Natural Products and Pharmaceuticals)
  • Review
  • Open Access
19 Citations
7,351 Views
19 Pages

Phthalates: The Main Issue in Quality Control in the Beverage Industry

  • Alessia Iannone,
  • Cristina Di Fiore,
  • Fabiana Carriera,
  • Pasquale Avino and
  • Virgilio Stillittano

Phthalate esters (PAEs) are a group of chemicals used to improve the flexibility and durability of plastics. The chemical properties and the resistance to high temperatures promote their degradation and release into the environment. Food and beverage...

(This article belongs to the Section Analysis of Food and Beverages)
  • Article
  • Open Access
2,563 Views
18 Pages

Metabolite Profiling and Molecular Network Shows Kinkeloids as Promoting of Collagen Synthesis from Combretum micranthum

  • Souhila Messaili,
  • Doha Haggouch,
  • Mikaela Bignard,
  • Pierre-Eric Campos,
  • Emilie Destandau and
  • Eldra Delannay

Combretum micranthum, a plant native to Africa, has a well-documented traditional use in the treatment of various ailments such as fever, diabetes, and malaria. Its pharmaceutical benefits include nephroprotective, anti-inflammatory, antioxidant, and...

(This article belongs to the Special Issue Bioactive Compounds from Natural Sources: Extraction, Characterization, Evaluation and Application)
  • Article
  • Open Access
5 Citations
3,773 Views
15 Pages

Comparative Kinetic Analysis of Triclosan Degradation under UV-C and Simulated Solar Irradiation

  • Lázaro Adrián González-Fernández,
  • Myriam Chems,
  • Nahum Andrés Medellín-Castillo,
  • Ventura Castillo-Ramos,
  • Manuel Sánchez-Polo,
  • Javier E. Vilasó-Cadre and
  • Raúl Ocampo-Pérez

This research delves deeply into the intricate degradation kinetics of triclosan, employing two distinct methodologies: UV and simulated solar irradiation. Through a comprehensive comparative analysis, the study endeavors to elucidate the efficacy of...

(This article belongs to the Section Environmental Separations)
  • Review
  • Open Access
33 Citations
16,091 Views
16 Pages

Magnetic separation technology is a physical separation method that uses the differences in magnetism between matter to separate them from each other by different motion behaviors in a non-uniform magnetic field. It is highly efficient, green, and en...

(This article belongs to the Section Separation Engineering)
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Separations - ISSN 2297-8739