Special Issue "Liquid Membranes for Chemical Speciation and Fractionation"

A special issue of ChemEngineering (ISSN 2305-7084).

Deadline for manuscript submissions: closed (27 March 2019)

Special Issue Editor

Department of Analytical Chemistry, Faculty of Marine and Environmental Sciences, University of Cádiz, 11510 Puerto Real, Cádiz, Spain
Interests: membrane separation; heavy metal pollution; sample preparation; toxic metals; solvent extraction; environ-mental pollution
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

The International Union of Pure and Applied Chemistry defines “speciation” of an element as the “distribution of an element amongst defined chemical species in a system” and “speciation analysis” as the “analytical activities of identifying and/or measuring the quantities of one or more individual chemical species in a sample”. From a wider point of view, fractionation is defined as the “process of classification of an analyte or a group of analytes from a certain sample according to physical (e.g., size, solubility) or chemical (e.g., bonding, reactivity) properties”. [1]

Both fractionation and speciation studies are of interest to many scientists doing research on different fields (chemists, biologists, geologists, environmentalists, etc.), and mainly in environmental studies. Thus, knowledge on chemical species is required, for example, to stablish the characteristics and behavior of ecosystems, or to study the effects of toxic elements on animals and plants.

Most speciation studies require the application of separation methodologies together with appropriate detection techniques. At this moment, many speciation analyses may be performed by using the combination of chromatographic separation approaches and sensitive detection techniques, such as atomic or ionic spectroscopy. However, the development of non-chromatographic sample preparation methodologies has powered the interest for its application to fractionation and chemical speciation. Among them, liquid membranes may be used as a valuable tool to selectively separate chemical species from real samples, since they allow performing very simple and low aggressive extraction processes maintaining the inalterability of the samples during chemical separation.  

The publication of this Special Issue will introduce recent advances in this interesting application of liquid membranes and will review the state-of-the-art and future perspectives.

[1] Templeton, D.M.; Ariese, F.; Cornelis, R.; Danielsson, L.G.; Muntau, H.;  van Leenwen, H.P.; Lobinski, R. Guidelines for terms related to chemical speciation and fractionation of elements. Definitions, structural aspects, and methodological approaches. Pure Appl. Chem. 2000, 72, 1453–1470.

Prof. Dr. Carlos Moreno
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. ChemEngineering 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 1500 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.


  • Liquid Membranes
  • Separation Techniques
  • Chemical Speciation
  • Fractionation
  • Trace Elements

Published Papers

There is no accepted submissions to this special issue at this moment.
Back to TopTop