It is our pleasure to invite you to read the selected papers from the Editor’s Choice Articles in 2022 listed below.

1. “Separation and Recycling Potential of Rare Earth Elements from Energy Systems: Feed and Economic Viability Review”
by Ajay B. Patil, Viktoria Paetzel, Rudolf P. W. J. Struis and Christian Ludwig
Separations 2022, 9(3), 56; https://doi.org/10.3390/separations9030056
Available online: https://www.mdpi.com/2297-8739/9/3/56

2. “Fractionation of Metal(loid)s in Three European Mine Wastes by Sequential Extraction”
by Chiamaka Belsonia Opara, Sabine Kutschke and Katrin Pollmann
Separations 2022, 9(3), 67; https://doi.org/10.3390/separations9030067
Available online: https://www.mdpi.com/2297-8739/9/3/67

3. “Carbon Dioxide Chemical Absorption Using Diamines with Different Types of Active Centers”
by Diego Gómez-Díaz, José Manuel Navaza and Antonio Rumbo
Separations 2022, 9(11), 343; https://doi.org/10.3390/separations9110343
Available online: https://www.mdpi.com/2297-8739/9/11/343

4. “Metabolomic and Proteomic Profile of Dried Hop Inflorescences (Humulus lupulus cv. Chinook and cv. Cascade) by SPME-GC-MS and UPLC-MS-MS”
by Paola Nezi, Vittoria Cicaloni, Laura Tinti, Laura Salvini, Matteo Iannone, Sara Vitalini and Stefania Garzoli
Separations 2022, 9(8), 204; https://doi.org/10.3390/separations9080204
Available online: https://www.mdpi.com/2297-8739/9/8/204

5. “The Evaluation of Amino Acid Profiles in Gluten-Free Mini Sponge Cakes Fortified with Broccoli By-Product”
by Natalia Drabińska
Separations 2022, 9(3), 81; https://doi.org/10.3390/separations9030081
Available online: https://www.mdpi.com/2297-8739/9/3/81

6. “Determination of Menbutone: Development and Validation of a Sensitive HPLC Assay according to the European Medicines Agency Guideline”
by Cristina López, Raquel Díez, José M. Rodríguez, Matilde Sierra, Juan J. García, Nélida Fernández, M. José Diez and Ana M. Sahagún
Separations 2022, 9(4), 84; https://doi.org/10.3390/separations9040084
Available online: https://www.mdpi.com/2297-8739/9/4/84

7. “Flavonoids Extraction Kinetics, Antimicrobial Activity and Radical Scavenging Potential of Bulgarian Woundwort (Solidago virgaurea L.)”
by Zvezdelina Yaneva, Evgeni Simeonov, Nikolina Rusenova, Donika Ivanova, Galina Nikolova, Yanka Karamalakova, Chavdar Chilev and Georgi Beev
Separations 2022, 9(2), 27; https://doi.org/10.3390/separations9020027
Available online: https://www.mdpi.com/2297-8739/9/2/27

8. “Phytochemical and Nutritional Profile Composition in Fruits of Different Sweet Chestnut (Castanea sativa Mill.) Cultivars Grown in Romania”
by Corina Teodora Ciucure, Elisabeta-Irina Geana, Claudia Sandru, Ovidiu Tita and Mihai Botu
Separations 2022, 9(3), 66; https://doi.org/10.3390/separations9030066
Available online: https://www.mdpi.com/2297-8739/9/3/66

9. “Adverse Effects of Arsenic Uptake in Rice Metabolome and Lipidome Revealed by Untargeted Liquid Chromatography Coupled to Mass Spectrometry (LC-MS) and Regions of Interest Multivariate Curve Resolution”
by Miriam Pérez-Cova, Romà Tauler and Joaquim Jaumot
Separations 2022, 9(3), 79; https://doi.org/10.3390/separations9030079
Available online: https://www.mdpi.com/2297-8739/9/3/79

10. “Comparative Study of Natural Antioxidants from Glycine max, Anethum graveolensand Pimpinella anisum Seed and Sprout Extracts Obtained by Ultrasound-Assisted Extraction”
by Fanica Balanescu, Anna Cazanevscaia Busuioc, Andreea Veronica Dediu Botezatu, Steluta Gosav, Sorin Marius Avramescu, Bianca Furdui and Rodica Mihaela Dinica
Separations 2022, 9(6), 152; https://doi.org/10.3390/separations9060152
Available online: https://www.mdpi.com/2297-8739/9/6/152

We would like to take this opportunity to thank all the research groups that submitted these exceptional papers for their contributions to Separations (ISSN: 2297-8739). We would greatly appreciate it if you could circulate this document among your colleagues or through your network.

If you would like to learn more about the contributions published in the Editor’s Choice Articles, please click on the following link: https://www.mdpi.com/journal/separations/editors_choice.