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Special Issue "Modern Analytical Techniques Applied for Qualitative and Quantitative Analysis of Ingredients and Inspect of Composition of Dietary Supplements"

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

Deadline for manuscript submissions: closed (15 November 2020).

Special Issue Editor

Prof. Dr. Tomasz Tuzimski
E-Mail Website
Guest Editor
Department of Physical Chemistry, Medical University of Lublin, Chodźki 4a, 20-093 Lublin, Poland
Interests: theory and application of liquid chromatography; modern extraction techniques (eg., QuEChERS); detection techniques (DAD, FLD, MS, MS/MS); method development and validation; optimisation of chromatographic systems for separation and quantitative analysis of xenobiotics and others (multicomponent mixtures) in food, environmental and biological samples
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Special Issue Information

Dear Colleagues,

A food supplement is a foodstuff whose purpose is to supplement a normal diet and is a concentrated source of vitamins, minerals or other substances with nutritional or other physiological effects, single or complex, placed on the market in a dosage form.
The dietary supplement may be introduced in the form of capsules, tablets, dragees and other similar forms, powder pods, liquid ampoules, dropper bottles and other similar forms of liquids and powders intended for consumption in small, measured unit quantities.
The maximum level of vitamins and minerals and other substances with a nutritional or other physiological effect ensures that the typical use of the dietary supplement in accordance with the information provided in the label will be safe for human health and life.
On the other hand, contaminations of dietary supplements, e.g., by pesticides or heavy metals, may pose a threat to a wide range of consumers. Therefore, it is extremely important to precisely control the composition of dietary supplements: The quality and quantity of ingredients, and whether their composition complies with the manufacturer's declarations.
Many modern analytical techniques are used to precisely inspect the composition of dietary supplements. The method selected depends on the complexity of the sample, the nature of the matrices and the analytes, and the analytical techniques available. The most efficient approach to analyte identification and quantitative analysis involves the use of chromatographic methods.
The following chromatographic methods are most frequently applied to determination of components of dietary supplements: High-performance liquid chromatography (HPLC), ultrahigh-performance liquid chromatography (UPLC), and gas chromatography (GC). These methods are used for quantitative analysis of complex mixtures of compounds in different forms of dietary supplements.
This Special Issue is planned as a topic that presents, in a properly structured manner, up-to-date, state-of-the-art information on the very important field of modern analytical techniques, including high-performance chromatographic techniques coupled with appropriate/sensitive detection techniques (e.g., DAD, FLD, mass spectrometry (MS) or tandem mass spectrometry (MS/MS)).

I warmly invite colleagues to submit their original contributions to this Special Issue, which will be of interest to a wide range of readers!

I would be delighted if you could respond to confirm your contribution and the proposed title by 15 July 2020 to assist in planning the whole project. In the cases of review articles, an additional brief (1–2 pages) description of the topic including a draft index is required. This preliminary step is essential to avoid overlapping of topics. The degree of novelty and the significance of the research will be scrutinized prior to peer-reviewing process.

Dr. Tomasz Tuzimski (Ph.D., Adjunct Professor)
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at 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 papers will be 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 2000 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.


  • dietary supplements:
    • supplements containing vitamins and minerals;
    • supplements containing plant ingredients and various plant extracts;
    • supplements containing essential fatty acids;
    • supplements containing dietary fiber;
    • supplements containing in their composition probiotics and prebiotics;
    • supplements containing amino acids;
    • supplements supporting slimming;
    • supplements that support the immune system;
    • supplements influencing the movement organs;
    • supplements that affect the delay of aging processes;
    • supplements affecting the nervous system, concentration, and also strengthening vitality;
    • supplements affecting the cardiovascular system;
    • supplements supporting the digestive system;
    • supplements supporting the proper vision process;
    • supplements affecting the condition of skin, mucous membranes, hair and nails;
    • supplements used to reduce the risk of osteoporosis;
    • supplements for athletes;
  • extraction techniques
  • analytical techniques
  • chromatographic methods (HPLC, UPLC, GC, others)
  • detection techniques (DAD, FLD, MS, MS/MS, and others).

Published Papers (1 paper)

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Mineral Constituents Profiling of Ready-To-Drink Nutritional Supplements by Inductively Coupled Plasma Optical Emission Spectrometry
Molecules 2020, 25(4), 851; - 14 Feb 2020
Viewed by 665
Nutritional drinks (NDs) are medicinal food products intended for people with different health issues constricting nutrients provision. Eight varieties of milkshake style NDs were analyzed in this work. Prior to element analysis, they were freeze-dried, and concentrations of twenty macro- and microelements in [...] Read more.
Nutritional drinks (NDs) are medicinal food products intended for people with different health issues constricting nutrients provision. Eight varieties of milkshake style NDs were analyzed in this work. Prior to element analysis, they were freeze-dried, and concentrations of twenty macro- and microelements in analyzed samples were simultaneously measured by ICP-OES after their mineralization in a closed-vessel microwave-assisted digestion system. Results of this analysis indicated that these NDs must be considered as nutrient-dense foods, taking into account mineral constituents. Consumption of two bottles of such NDs per day provides very a high amount or even an excess of human daily requirements set as Recommended Dietary Allowances (RDAs). Generally, concentrations of determined elements in examined NDs were consistent with data given on the labels—most of differences did not exceed 30% (median: −5.91%, standard deviation: 14%). Discovered very strong and moderate positive correlations between concentrations of major and essential elements (Ca, Mg, P, Cu, Fe, Mn, Zn) were likely due to their incorporation into formulations of analyzed NDs. However, relationships between contents of trace elements were the result of concomitance of these elements in substrates used for examined products production or contamination of substrates. Full article
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