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Advanced Analysis of Contaminants of Emerging Concern: Volume II
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Advanced Analysis of Contaminants of Emerging Concern: Volume II

A special issue of Molecules (ISSN 1420-3049). This special issue belongs to the section "Analytical Chemistry".

Deadline for manuscript submissions: closed (31 July 2024) | Viewed by 1867

Special Issue Editor

Prof. Dr. Simone Morais

E-Mail Website
Guest Editor
REQUIMTE/LAQV, ISEP, Polytechnic of Porto, Rua Dr. António Bernardino de Almeida, 4249-015 Porto, Portugal
Interests: (bio)sensors; application of functional nanostructured materials; green technologies; new methodologies for (electro)analysis; environmental chemistry; monitoring/biomonitoring
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Contaminants of emerging concern (CECs) are receiving increasing interest from the scientific community and regulatory authorities. They are chemical substances not currently included in routine monitoring programs but can be candidates for future regulation depending on their (eco)toxicity, potential health effects, and presence in environmental and food matrices. CECs may also be substances for which the maximum levels have been laid down but which require revision. CECs include (but are not limited to) several types of chemicals, namely pharmaceuticals and personal care products, including human-prescribed drugs (e.g., antibiotics, psychiatric drugs, analgesics/anti-inflammatory drugs, etc.), over-the-counter medications (e.g., ibuprofen), and veterinary medicines (such as antibiotics, anti-fungals, growth promoters and hormones), to name some of the most relevant groups. The occurrence patterns of CECs are varied, with very limited information concerning their environmental compartments and other complex matrices. Thus, considering their bioactivity, including the endocrine disrupting activity and bioaccumulation potential of several of these compounds, the development, validation, and application of reliable and fit-for-purpose methods for analyzing CECs is an appropriate objective to strive for.

The aim of this Special Issue is to disseminate original research and review studies that address advances, trends, challenges and future perspectives concerning tools for CEC analysis. Real applications also deserve special attention.

Prof. Dr. Simone Morais
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. Molecules is an international peer-reviewed open access semimonthly 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 2700 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

  • contaminants of emerging concern
  • advanced analytical techniques
  • sample preparation techniques
  • hyphenated techniques
  • chromatographic techniques
  • sensors and biosensors
  • multiresidue analysis
  • real sample analysis

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Related Special Issue

Published Papers (2 papers)

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Research

13 pages, 7735 KiB  
Article
Determination and Ecological Risk Assessment of Quinolone Antibiotics in Drinking and Environmental Waters Using Fully Automated Disk-Based SPE Coupled with UPLC–MS/MS
by Hongmei Hu, Xingyu Da, Zhenhua Li, Tiejun Li, Xiaoning Zhang, Tianbin Bian, Yanjian Jin, Kaida Xu and Yuanming Guo
Molecules 2024, 29(19), 4611; https://doi.org/10.3390/molecules29194611 - 28 Sep 2024
Viewed by 857
Abstract
Quinolone antibiotics (QNs) contamination in the aquatic environment is a global public health issue considering their resistance and mobility. In this study, a simple, efficient, and sensitive method was developed for the accurate quantification of fifteen QNs in water using automated disk-based solid-phase [...] Read more.
Quinolone antibiotics (QNs) contamination in the aquatic environment is a global public health issue considering their resistance and mobility. In this study, a simple, efficient, and sensitive method was developed for the accurate quantification of fifteen QNs in water using automated disk-based solid-phase extraction (SPE) coupled with ultra-performance liquid chromatography–tandem mass spectrometry (UPLC–MS/MS). By utilizing a 3M SDB-XC disk to enrich QNs from a 1000 mL water sample, the detection limits were improved to 0.008–0.055 ng/L due to the satisfactory enrichment factors of 897−1136, but only requiring about 60 min per six samples. The linearity of the method ranged from 0.05 to 100 μg/L for the 15 QNs, with correlation coefficients of 0.9992–0.9999, and the recoveries were in the range of 81–114%, with relative standard deviations of 0.2–13.3% (n = 6). The developed method was applicable for the quantification of trace QNs at low ng/L levels in drinking and environmental waters. The results showed that no QNs were detected in tap water, while three and four QNs were detected in the river water of Zhoushan and the seawater of Daiquyang and Yueqing Bay, East China, respectively, with a total concentration of 1.600–8.511 ng/L and 1.651–16.421 ng/L, respectively. Among the detected QNs, ofloxacin (OFL) was the predominant compound in river water, while enrofloxacin (ENR) was predominant in seawater. The risk quotient (RQ) results revealed that QNs posed a low risk to crustaceans and fish, but a low-to-medium risk to algae, and OFL presented the main ecological risk factor in river water, while ENR and CIP in seawater. Overall, the proposed automated disk-based SPE–UPLC–MS/MS method is highly efficient and sensitive, making it suitable for routine analysis of QNs in drinking and environmental waters. Full article
(This article belongs to the Special Issue Advanced Analysis of Contaminants of Emerging Concern: Volume II)
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18 pages, 3022 KiB  
Article
Biosorption Ability of Pharmaceutically Active Compounds by Anabaena sp. and Chroococcidiopsis thermalis
by Jerzy Pogrzeba and Anna Poliwoda
Molecules 2024, 29(18), 4488; https://doi.org/10.3390/molecules29184488 - 21 Sep 2024
Viewed by 648
Abstract
Drug overuse harms the biosphere, leading to disturbances in ecosystems’ functioning. Consequently, more and more actions are being taken to minimise the harmful impact of xenopharmaceuticals on the environment. One of the innovative solutions is using biosorbents—natural materials such as cells or biopolymers—to [...] Read more.
Drug overuse harms the biosphere, leading to disturbances in ecosystems’ functioning. Consequently, more and more actions are being taken to minimise the harmful impact of xenopharmaceuticals on the environment. One of the innovative solutions is using biosorbents—natural materials such as cells or biopolymers—to remove environmental pollutants; however, this focuses mainly on the removal of metal ions and colourants. Therefore, this study investigated the biosorption ability of selected pharmaceuticals—paracetamol, diclofenac, and ibuprofen—by the biomass of the cyanobacteria Anabaena sp. and Chroococcidiopsis thermalis, using the LC-MS/MS technique. The viability of the cyanobacteria was assessed by determining photosynthetic pigments in cells using a UV–VIS spectrophotometer. The results indicate that both tested species can be effective biosorbents for paracetamol and diclofenac. At the same time, the tested compounds did not have a toxic effect on the tested cyanobacterial species and, in some cases, stimulated their cell growth. Furthermore, the Anabaena sp. can effectively biotransform DCF into its dimer. Full article
(This article belongs to the Special Issue Advanced Analysis of Contaminants of Emerging Concern: Volume II)
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