| Title: | Dynamic gas extraction of iodine in combination with a silver triangular nanoplate-modified paper strip for colorimetric determination of iodine and of iodine-interacting compounds |
| Author(s): | Gorbunova MO; Baulina AA; Kulyaginova MS; Apyari VV; Furletov AA; Volkov PA; Bochenkov VE; Starukhin AS; Dmitrienko SG; |
| Address: | "Department of Chemistry, Southern Federal University, Zorge St., 7, 344090, Rostov-on-Don, Russia. Pharmaceutical Faculty, Rostov State Medical University of the Ministry of Healthcare of Russian Federation, Nakhichevansky lane, 29, 344022, Rostov-on-Don, Russia. Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, 1/3, 119991, Moscow, Russia. apyari@mail.ru. Department of Chemistry, Lomonosov Moscow State University, Leninskie gory, 1/3, 119991, Moscow, Russia. Scientific-Research Institute of Chemical Reagents and Special Purity Chemicals of National Research Center 'Kurchatov Institute', Bogorodsky Val St., 3, 107076, Moscow, Russia. B.I. Stepanov Institute of Physics, National Academy of Science of Belarus, Nezalezhnasti Ave., 68-2, 220072, Minsk, Belarus" |
| DOI: | 10.1007/s00604-019-3300-5 |
| ISSN/ISBN: | 1436-5073 (Electronic) 0026-3672 (Linking) |
| Abstract: | "A method is described for sensitive and selective detection of iodine by using a paper strip modified with silver triangular nanoplates (AgTNPs). It is based on the extraction of iodine from a solution into a flow of air via dynamic gas extraction and transferring it through a reactive paper modified with AgTNPs. The interaction of AgTNPs with iodine results in a color change from blue to white. This can be visually detected and monitored by digital colorimetry. The dynamic gas extraction is highly selective for volatile compounds so that a sample pretreatment is minimal. Due to the sensitivity of AgTNPs for iodine, the limit of its detection is as low as 7 mug L(-1), and the analytical range is of 20-200 mug L(-1). The method also was applied in a new approach for determination of organic compounds that can interact with iodine. The organic compound is exposed to an excess of iodine, and this is followed by detection of residual iodine as described above. The method was applied to the determination of ascorbic acid, caffeine and the drug metamizole. Graphical abstract Schematic representation of a procedure of organic iodine-interacting compounds (Org.) determination. It is based on their iodination followed by gas extraction of the residual iodine, its interaction with silver triangular nanoplates and colorimetric detection with a scanner" |
| Keywords: | Ascorbic acid Caffeine Digital colorimetry Iodination Membraneless separation Nanoparticles Pharmaceuticals Scanner Surface plasmon resonance; |
| Notes: | "PubMed-not-MEDLINEGorbunova, Marina O Baulina, Anastasiya A Kulyaginova, Margarita S Apyari, Vladimir V Furletov, Aleksei A Volkov, Pavel A Bochenkov, Vladimir E Starukhin, Aleksandr S Dmitrienko, Stanislava G eng 18-53-00014-Bel_a/Russian Foundation for Basic Research/International F18R-237/Belarusian Republican Foundation for Fundamental Research/International Research Support, Non-U.S. Gov't Austria 2019/02/17 Mikrochim Acta. 2019 Feb 15; 186(3):188. doi: 10.1007/s00604-019-3300-5" |
