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Separations
Special Issues
Applications of Chromatographic Methods in Environmental Analysis
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Applications of Chromatographic Methods in Environmental Analysis

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

Deadline for manuscript submissions: closed (30 June 2016) | Viewed by 5881

Special Issue Editor

Dr. Todd Mlsna

E-Mail Website
Guest Editor
Chemistry Department, Mississippi State University, Starkville, MS 39762, USA
Interests: biofuels; chemical sensors; environmental monitoring

Special Issue Information

Dear Colleagues,

Environmental topics, such as global warming, air and water pollution, pesticides, pharmaceuticals, and conservation, are in the news and affect us all. The challenges associated with responsible management of chemicals in the environment are complicated, and cross many disciplines, from chemistry to biology to toxicology to political science.  Frequently, the first key step is identifying and quantifying the extent of the problem. Chromatographic separations of complex environmental matrices are a required step in many environmental analytical methods. This Special Issue invites contributions that highlight the latest research and advancements in Chromatographic Methods in Environmental Analysis, and demonstrate the range of applications and fields for which its use is particularly beneficial.

Dr. Todd Mlsna
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

  • chromatography
  • pollutant
  • contaminant
  • monitoring
  • environment
  • method development

Published Papers (1 paper)

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Research

2753 KiB  
Article
Effects of Growth Parameters on the Analysis of Aspergillus flavus Volatile Metabolites
by Dongdi Sun, Jinyan She, Julie L. Gower, C. Elizabeth Stokes, Gary L. Windham, Richard E. Baird and Todd E. Mlsna
Separations 2016, 3(2), 13; https://doi.org/10.3390/separations3020013 - 6 May 2016
Cited by 12 | Viewed by 5437
Abstract
Aspergillus flavus produces dangerous secondary metabolites known as aflatoxins, which are toxic and carcinogenic, and their contamination of agricultural products results in health issues and economic hardships in the U.S. and around the world. Early identification of aflatoxigenic isolates of A. flavus is [...] Read more.
Aspergillus flavus produces dangerous secondary metabolites known as aflatoxins, which are toxic and carcinogenic, and their contamination of agricultural products results in health issues and economic hardships in the U.S. and around the world. Early identification of aflatoxigenic isolates of A. flavus is the key in the management of these fungi. An emerging detection method for specific fungi identification involves the analysis of microbial volatile organic compounds (MVOCs) released by the fungi. Complicating this approach is the understanding that many factors influence metabolic production, including growth parameters, such as growth media, temperature, spore counts and oxidation stress. In addition, analytical and data analysis methods can also influence the results. Several growth and analysis methods were evaluated and optimized in order to better understand the effect of the methods on fungi MVOC signatures. The results indicate that carboxen/polydimethylsiloxane (CAR/PDMS) has the best extraction efficiency for the MVOCs emitted by A. flavus. Both chemical defined agar (CDA) and chemical defined liquid (CDL) are suitable growth media for MVOC emission studies. The highest MVOC production was found at 30 °C. Log transformation was considered one of the best data pretreatment methods when analyzing MVOC data and resulted in the best principal component analysis (PCA) clustering in the experiments with different growth media. This study aims to elucidate fungal volatile organic compounds (VOCs) differences due to variations in growth parameters as a first step in the development of an analytical method for the monitoring of aflatoxigenic A. flavus contamination in crop storage facilities. Full article
(This article belongs to the Special Issue Applications of Chromatographic Methods in Environmental Analysis)
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