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Grazioli C, Lanza E, Abate M, Bontempelli G, Dossi N. Lab-on kit: A 3D printed portable device for optical and electrochemical dual-mode detection. Talanta 2024; 275:126185. [PMID: 38705019 DOI: 10.1016/j.talanta.2024.126185] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2023] [Revised: 04/23/2024] [Accepted: 04/28/2024] [Indexed: 05/07/2024]
Abstract
The hyphenation of electrochemical methods and optical methods in a single portable device is expected to be a challenging combination to enhance the information which can be gained on complex chemical systems. In this paper, a low-cost spectrophotometric device based on low-cost electronics integrated with an electroanalytical cell equipped with a screen printed electrode (SPE) and assembled exploiting a DIY approach, is presented. This easy to use device allowed spectrophotometric and electroanalytical measurements to be performed simultaneously providing simultaneous information and enabling concomitant comparison and autovalidation of the results collected. The analytical robustness and precision of the proposed system was successfully tested on solutions containing mixtures of Patent Blue (E-131) and Brilliant Blue (Erioglaucine E-133), two food dyes displaying optical and redox properties very similar to each other.
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Affiliation(s)
- Cristian Grazioli
- Sustainable Analytical Instrumentation Laboratory (Sustain Lab), Department of Agrifood, Environmental and Animal Science, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Elisa Lanza
- Sustainable Analytical Instrumentation Laboratory (Sustain Lab), Department of Agrifood, Environmental and Animal Science, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Michele Abate
- Sustainable Analytical Instrumentation Laboratory (Sustain Lab), Department of Agrifood, Environmental and Animal Science, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Gino Bontempelli
- Sustainable Analytical Instrumentation Laboratory (Sustain Lab), Department of Agrifood, Environmental and Animal Science, University of Udine, via Cotonificio 108, I-33100 Udine, Italy
| | - Nicolò Dossi
- Sustainable Analytical Instrumentation Laboratory (Sustain Lab), Department of Agrifood, Environmental and Animal Science, University of Udine, via Cotonificio 108, I-33100 Udine, Italy.
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Lorenzetti AS, Lo Fiego MJ, Silva MF, Domini C, Gomez FJ. Water behavior study for tailoring fructose-citric acid based natural deep eutectic solvent properties towards antibiotics solubilization. J Mol Liq 2022. [DOI: 10.1016/j.molliq.2022.119917] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/30/2022]
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Elderderi S, Hilali S, Wils L, Chourpa I, Soucé M, Clément-Larosière B, Elbashir AA, Byrne HJ, Munnier E, Boudesocque-Delaye L, Bonnier F. Monitoring the water content in NADES extracts from spirulina biomass by means of ATR-IR spectroscopy. ANALYTICAL METHODS : ADVANCING METHODS AND APPLICATIONS 2022; 14:1973-1981. [PMID: 35531873 DOI: 10.1039/d2ay00234e] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/14/2023]
Abstract
Attenuated total reflectance-infrared spectroscopy (ATR-IR) coupled with partial least squares regression (PLSR) was evaluated as a rapid, label free and cost-effective tool to quantify water content in extracts obtained from spirulina wet biomass using a glucose glycerol natural deep eutectic solvent (NADES). NADESs are green, renewable and biodegradable solvents with unique properties outcompeting existing organic solvents, for instance, for plant or biomass extraction. The properties of NADESs depend critically on their water concentration, and therefore, it is essential to develop methods to monitor it, to ensure optimal extraction efficiency and experimental repeatability to achieve a better standardization of extraction protocols. First, Karl Fischer titration was performed on a set of 20 NADES extracts in order to obtain reference water concentrations. Secondly, ATR-IR spectra were collected and subjected to datamining to construct PLSR predictive models. An R2 value of 0.9996, a mean root mean square error of cross validation of 0.136% w/w and a root mean square error of prediction of 0.130% w/w highlight the feasibility and reliability to perform quantitative analysis using ATR-IR. Moreover, the mean relative error percentage achieved, ∼0.5%, confirms the high accuracy of water concentration determination in NADES extracts. This work demonstrates that powerful alternatives are available to provide more environmentally responsible analytical protocols. ATR-IR spectroscopy applied to NADES extracts does not require any sample preparation, reagents or solvents and has minimal requirements for single use consumables. The technique is consistent with current concerns to develop greener chemistry, especially in the field of extraction of natural compounds from plants which currently represents a major focus of interest in both research and industry.
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Affiliation(s)
- Suha Elderderi
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
- University of Gezira, Faculty of Pharmacy, Department of Pharmaceutical Chemistry, P.O. Box 20, Wad Madani 21111, Sudan
| | - Soukaina Hilali
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Laura Wils
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Igor Chourpa
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
| | - Martin Soucé
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
| | | | - Abdalla A Elbashir
- King Faisal University, College of Science, Department of Chemistry, P.O. Box 400, Al-Ahsa 31982, Saudi Arabia
- University of Khartoum, Faculty of Science, Department of Chemistry, P.O. Box 321, Khartoum 11115, Sudan
| | - Hugh J Byrne
- FOCAS Research Institute, TU Dublin, City Campus, Camden Row, Dublin 8, Ireland
| | - Emilie Munnier
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Leslie Boudesocque-Delaye
- Université de Tours, EA 7502 Synthèse et Isolement de Molécules BioActives (SIMBA), 31 Avenue Monge, Tours 37200, France
| | - Franck Bonnier
- Université de Tours, Faculté de pharmacie, EA 6295 Nanomédicaments et Nanosondes, 31 Avenue Monge, Tours 37200, France.
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