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Advanced Analytical Techniques in Environmental Chemistry II

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

Deadline for manuscript submissions: 30 June 2024 | Viewed by 589

Special Issue Editor


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Guest Editor
INCDO-INOE 2000 Research Institute for Analytical Instrumentation Cluj-Napoca, Ploiesti, Romania
Interests: trace elements analysis in environmental samples using advanced analytical techniques; miniaturized spectrometric instrumentation; passive sampling using the diffusive gradients in thin-films (DGT) technique; development and validation of spectrometric methods for environmental applications; elements bioavailability in soil and water; materials characterization using spectrometric techniques
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Special Issue Information

Dear Colleagues,

We are pleased to announce the Second Edition of “Advanced Analytical Techniques in Environmental Chemistry”.

Environmental analysis covers soil, water, air, and biological matrices, while target analytes include naturally occurring substances and contaminants resulting from anthropogenic activities. Particular challenges in environmental matrix analysis are introduced by the very low concentrations at which some compounds should be measured, the different oxidation states in which analytes are found, and the forms in which particular analytes (which influence its mobility and bioavailability) are present. Another subject of interest in environmental analysis is the development of analytical protocols that correspond to the principles of “green chemistry”. This involves both sample preparation methodologies and instrumental detection. In terms of instrumentation, this refers mainly to miniaturization and automatization to reduce energy, reagent volumes, sample sizes, waste, and the use of multi-analyte or multi-parameter methods. In terms of sample preparation methodologies, reducing the pretreatment stages as much as possible, lowering the reagent volume, and avoiding or replacing toxic reagents are desirable. As a result, there is a continuous research interest in the development, validation, and application of new analytical techniques with improved performance characteristics for environmental quality characterization. There is a permanent demand to develop and use methods that ensure reliable and dependable analytical data. In order to achieve this, method validation is an essential component that laboratories should implement. Considering these aspects, this Special Issue is addressed to scientists working on the development, validation, and application of advanced analytical methods designed for environmental quality assessment. The main topics covered in this Special Issue are: (I) environmentally friendly sample preparation methodologies; (II) analytical instrumentation with improved performance parameters; (III) methodologies for element speciation; (III) methodologies for in situ analysis/monitoring; (IV) development and validation of analytical methods to ensure quality performance for environmental sample analysis; and (V) application of advanced analytical techniques for environmental quality assessment.

Dr. Marin Senila
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

  • advanced analytical instrumentation
  • speciation analysis
  • method validation
  • green analytical chemistry
  • environmental quality assessment
  • pollutant bioavailability
  • safe reagents
  • performance parameters

Published Papers (1 paper)

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Research

13 pages, 2336 KiB  
Article
Monitoring Ammonium Polyphosphate (APP) Biodegradation by Acinetobacter nosocomialis D-3 Using DAPI
by Xiangxiang Li, Yule Cai, Qiqing Qiu, Jiamin Wu, Jing Wang and Jieqiong Qiu
Molecules 2024, 29(11), 2667; https://doi.org/10.3390/molecules29112667 - 5 Jun 2024
Viewed by 314
Abstract
Ammonium polyphosphate (APP), a pivotal constituent within environmentally friendly flame retardants, exhibits notable decomposition susceptibility and potentially engenders ecological peril. Consequently, monitoring the APP concentration to ensure product integrity and facilitate the efficacious management of wastewater from production processes is of great significance. [...] Read more.
Ammonium polyphosphate (APP), a pivotal constituent within environmentally friendly flame retardants, exhibits notable decomposition susceptibility and potentially engenders ecological peril. Consequently, monitoring the APP concentration to ensure product integrity and facilitate the efficacious management of wastewater from production processes is of great significance. A fluorescent assay was devised to swiftly discern APP utilizing 4′,6′-diamino-2-phenylindole (DAPI). With increasing APP concentrations, DAPI undergoes intercalation within its structure, emitting pronounced fluorescence. Notably, the flame retardant JLS-PNA220-A, predominantly comprising APP, was employed as the test substrate. Establishing a linear relationship between fluorescence intensity (F-F0) and JLS-PNA220-A concentration yielded the equation y = 76.08x + 463.2 (R2 = 0.9992), with a LOD determined to be 0.853 mg/L. The method was used to assess the degradation capacity of APP-degrading bacteria. Strain D-3 was isolated, and subsequent analysis of its 16S DNA sequence classified it as belonging to the Acinetobacter genus. Acinetobacter nosocomialis D-3 demonstrated superior APP degradation capabilities under pH 7 at 37 °C, with degradation rates exceeding 85% over a four-day cultivation period. It underscores the sensitivity and efficacy of the proposed method for APP detection. Furthermore, Acinetobacter nosocomialis D-3 exhibits promising potential for remediation of residual APP through environmental biodegradation processes. Full article
(This article belongs to the Special Issue Advanced Analytical Techniques in Environmental Chemistry II)
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