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Separations
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Analysis of Organic Micropollutants
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Analysis of Organic Micropollutants

A special issue of Separations (ISSN 2297-8739).

Deadline for manuscript submissions: closed (20 November 2020) | Viewed by 8202

Special Issue Editor

Dr. Emmanuelle Vulliet

E-Mail Website
Guest Editor
Institute of Analytical Sciences—UMR 5280, 5 rue de la Doua, 69100 Villeurbanne, France
Interests: sample preparation; gas chromatography; high-performance liquid chromatography; high-resolution mass spectrometry; trace analysis; quantification; organic micropollutants; metabolomics
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,                

If the presence of a large panel of organic micropollutants in our environment is now a proven fact, their analysis remains an analytical challenge for several reasons. These compounds, in native or metabolite forms, are numerous and belong to many physicochemical families, which makes their multiresidue analysis difficult and sometimes requires specific methods. On the other hand, it is still challenging to implement nontargeted methods for screening samples. Environmental, food or biological matrices are complex and sometimes available in very small quantities. Finally, the harmful effects of micropollutants on ecosystem balance or human health are observed or suspected at ultratrace levels.

The aim of this Special Issue is to provide an overview of analytical advances for the sample preparation, detection, identification, quantification, and screening of organic micropollutants in complex matrices.

Dr. Emmanuelle Vulliet
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

  • Sample preparation
  • Separation
  • Gaz and liquid chromatography
  • Mass spectrometry
  • Development of analytical methods
  • Quantification
  • Screening

Published Papers (2 papers)

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Research

12 pages, 947 KiB  
Article
Development and Application of a Multi-Residue Method to Determine Pesticides in Agricultural Water Using QuEChERS Extraction and LC-MS/MS Analysis
by Nho-Eul Song, Young Sung Jung, Ji Yeon Choi, Minseon Koo, Hyo-Kyoung Choi, Dong-Ho Seo, Tae-Gyu Lim and Tae Gyu Nam
Separations 2020, 7(4), 52; https://doi.org/10.3390/separations7040052 - 02 Oct 2020
Cited by 14 | Viewed by 4373
Abstract
Agricultural water is closely linked to surface and ground water as well as soil; hence, ensuring its safety is an important endeavor. We used the “quick, easy, cheap, effective, rugged, and safe” (QuEChERS) method to analyze multi-residue pesticides in agricultural water by using [...] Read more.
Agricultural water is closely linked to surface and ground water as well as soil; hence, ensuring its safety is an important endeavor. We used the “quick, easy, cheap, effective, rugged, and safe” (QuEChERS) method to analyze multi-residue pesticides in agricultural water by using a combined-sorbent-based clean-up procedure. Among the various sorbents examined, clean-up using ENVI-Carb combined with a primary secondary amine sorbent delivered the highest recovery of multi-residue pesticides (>93.9%). While the developed method showed satisfactory linearity (R2 > 0.9991), precision, and specificity, recovery was low for pyrazolate (29.1%) and thidiazuron (59.2%). The limits of detection and quantification for the 55 pesticides targeted in this study were in 0.02–3.0 μg L−1 and 0.1–9.9 μg L−1, respectively. The developed method was used to identify and quantify multi-residue pesticides during sample analysis. The results suggest that the QuEChERS method employing a combination of ENVI-Carb and another sorbent can be applied for the effective analysis of multi-residue pesticides in agricultural water. Full article
(This article belongs to the Special Issue Analysis of Organic Micropollutants)
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12 pages, 1137 KiB  
Article
Screening of Contaminants of Emerging Concern in Microalgae Food Supplements
by Isabel Martín-Girela, Beatriz Albero, Brijesh K. Tiwari, Esther Miguel and Ramón Aznar
Separations 2020, 7(2), 28; https://doi.org/10.3390/separations7020028 - 20 May 2020
Cited by 10 | Viewed by 3411
Abstract
The frenetic lifestyle in the developed countries has driven us to be deficient in some nutrients, which may be overcome by supplements. Microalgae, like spirulina (Arthrospira platensis) and chlorella (Chlorella ssp.) are widely used as supplements due to their high [...] Read more.
The frenetic lifestyle in the developed countries has driven us to be deficient in some nutrients, which may be overcome by supplements. Microalgae, like spirulina (Arthrospira platensis) and chlorella (Chlorella ssp.) are widely used as supplements due to their high contents of macro- and micronutrients. Chlorella and spirulina can be grown naturally in a range of water bodies, showing their high adaptability to harsh environments. They are mainly produced in countries with poor water quality and sometimes inexistent water legislation, which can be a vector of micropollutant introduction into the food chain. Thus, a method for the simultaneous determination of 31 emerging contaminants commonly found as micropollutants in freshwater (pharmaceutical and personal care products, hormones, flame retardants and biocides) in two microalgae is presented. Target contaminants were extracted from the microalgae employing ultrasound-assisted matrix solid-phase dispersion followed by gas chromatography-mass spectrometry analysis. The method was validated for chlorella and spirulina with recoveries ranging from 70% to 111% at concentrations of 25 and 100 ng·g−1, and good linearity in the range from 5 to 400 ng·g−1 with limits of detection below 2.5 ng·g−1, in both microalgae. The method validated was applied to a range of microalgae supplement foods and the results proved that the compounds studied were below limits of detection. Full article
(This article belongs to the Special Issue Analysis of Organic Micropollutants)
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