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Separations
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Recent Advances in Green Sample Preparation Techniques
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Recent Advances in Green Sample Preparation Techniques

A special issue of Separations (ISSN 2297-8739). This special issue belongs to the section "Environmental Separations".

Deadline for manuscript submissions: closed (10 March 2023) | Viewed by 5001

Special Issue Editor

Dr. Krzysztof Goryński

E-Mail Website
Guest Editor
Bioanalysis Scientific Group, Faculty of Pharmacy, Nicolaus Copernicus University in Torun, Collegium Medicum in Bydgoszcz, Jurasza 2 Street, 85-089 Bydgoszcz, Poland
Interests: sample preparation; solid-phase microextraction; green extraction techniques; doping control; bioanalysis; 3D printing; mass spectrometry; method optimization

Special Issue Information

Dear Colleagues,

It is my pleasure to inform you that a new Separations Special Issue has been launched, titled “Recent Advances in Green Sample Preparation Techniques”.

Analytical tools presently applied enable rapid and throughput diagnosis, simultaneously with reduced use of organic solvent, utilization of natural sorptive materials or promotion of the production of reusable extraction devices. Most recently, a new frontier in analytical chemistry is so-called green analytical chemistry, emphasizing aspects such as reduction in organic solvent consumption, reduction in laboratory waste production, designs enabling biodegradation, and the use of materials originating from sustainable sources. Considering the above, do nevertheless keep in mind that the quality of sample preparation should not be sacrificed.

The scientific goal of this Special Issue is to improve the green metrics of sample preparation techniques suitable for environmental, food, and bioanalytical applications. I encourage and acknowledge all research groups working in the area of green chemistry, especially in the field of analytical chemistry, to contribute to this Special Issue of Separations. I strongly believe that your contribution to this Special Issue will have a significant influence on the scientific research community and provide environmentally friendly ideas and solutions to inspire readers in their everyday work and also, if possible, to implement greener sample preparation protocols and techniques.

Research articles, review articles, as well as short communications are invited.

Dr. Krzysztof Goryński
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Separations is an international peer-reviewed open access monthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2600 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • Microextraction techniques
  • Sample preparation
  • Green analytical chemistry (GAC)
  • Targeted and untargeted analysis
  • Bioanalysis
  • Mass spectrometry
  • Environmental analysis
  • Food analysis

Published Papers (2 papers)

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Research

12 pages, 946 KiB  
Article
Untargeted Metabolomics by Using UHPLC–ESI–MS/MS of an Extract Obtained with Ethyl Lactate Green Solvent from Salvia rosmarinus
by Grover Castañeta, Nicolas Cifuentes, Beatriz Sepulveda, Daniela Bárcenas-Pérez, José Cheel and Carlos Areche
Separations 2022, 9(11), 327; https://doi.org/10.3390/separations9110327 - 26 Oct 2022
Cited by 5 | Viewed by 1975
Abstract
Salvia rosmarinus (Lamiaceae), previously known as Rosmarinus officinalis, is a plant cultivated worldwide, native to the Mediterranean region. Its leaves are traditionally used for cooking. This species possesses numerous biological activities, including antioxidant, antimicrobial, anticancer, anti-inflammatory, and hepatoprotective properties. These biological properties [...] Read more.
Salvia rosmarinus (Lamiaceae), previously known as Rosmarinus officinalis, is a plant cultivated worldwide, native to the Mediterranean region. Its leaves are traditionally used for cooking. This species possesses numerous biological activities, including antioxidant, antimicrobial, anticancer, anti-inflammatory, and hepatoprotective properties. These biological properties are due to the presence of phenolic compounds, including rosmarinic acid and phenolic diterpenoids, such as carnosic acid and carnosol. In this study, we investigated the chemical composition of a green extract obtained by maceration with ethyl lactate for the first time. Seventy-five compounds were tentatively identified by UHPLC–ESI–MS/MS, including six organic acids, six cinnamic acid derivatives, five fatty acids, eighteen flavonoids, and thirty-eight terpenoids. Thus, abietane-type diterpenoids from the ethyl lactate extract were the predominant diterpenoids in the Chilean S. rosmarinus species, in contrast to the Chinese species, in which labdane and isopimarane-type diterpenoids were found for the first time. Finally, our study confirms that the extraction of S. rosmarinus with green ethyl lactate as a solvent is efficient and sustainable for the identification of flavonoids, phenols, and terpenoids from leaves. Full article
(This article belongs to the Special Issue Recent Advances in Green Sample Preparation Techniques)
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15 pages, 5838 KiB  
Article
Evaluation of New, Sputtered Carbon SPME Fibers with a Multi-Functional Group Test Mixture
by Dhananjay I. Patel, Tuhin Roychowdhury, Collin Jacobsen, Colton Myers, Jason S. Herrington and Matthew R. Linford
Separations 2021, 8(12), 228; https://doi.org/10.3390/separations8120228 - 23 Nov 2021
Cited by 1 | Viewed by 2406
Abstract
We report the first fabrication of sputtered carbon, solid-phase microextraction (SPME) fibers. These fibers have competitive extraction capabilities compared with the commercial carbon wide range (CWR) SPME fiber. This report also includes a demonstration of a newly developed SPME test mix that includes [...] Read more.
We report the first fabrication of sputtered carbon, solid-phase microextraction (SPME) fibers. These fibers have competitive extraction capabilities compared with the commercial carbon wide range (CWR) SPME fiber. This report also includes a demonstration of a newly developed SPME test mix that includes 15 different compounds with a wide range of functional groups and chemical properties. The fiber fabrication process involves sputtering carbon onto fused silica fibers, and the effects of throw distance on the morphology of the carbon coatings were studied. Four different carbon coating thicknesses were evaluated, with PDMS added as a stationary phase. These fibers were characterized with multiple analytical techniques, including scanning electron microscopy (SEM), X-ray photoelectron spectroscopy (XPS), water contact angle (WCA) goniometry, as well as headspace (HS) and direct immersion (DI)–SPME–GC–MS. The best (11.5 µm) sputtered carbon SPME fibers, with and without PDMS, were evaluated using the new evaluation mix and compared with the commercial CWR fiber and a previously sputtered/developed silicon fiber. The new probe mix helped elucidate differences among the fibers, which would have been missed by current commercial test mixes. The sputtered carbon SPME fibers showed similar functional group selectivity as commercial CWR fibers. However, the sputtered carbon fibers showed higher responses per volume compared with the commercial CWR fiber, indicating the porous morphology of the sputtered carbon has the ability to overcome large phase thickness/volume discrepancies and increase the relative recovery for various compounds. Full article
(This article belongs to the Special Issue Recent Advances in Green Sample Preparation Techniques)
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