Solid-phase extraction and fluorimetric determination of Zn (II) in natural water using novel adsorbent based on silica modified with polyhexamethylene guanidine and Ferron
Novel silica-based adsorbent layer-by-layer modified with polyhexamethylene guanidine and 7-iodine-8-hydroxyquinoline-5-sulphonic acid (Ferron) was used for preconcentration and adsorption-fluorimetric determination of Zn(II). A simple and express method for adsorbent preparation is described in the...
| Published in: | International Journal of Environmental Analytical Chemistry |
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| Main Authors: | , , |
| Other Authors: | |
| Format: | Article in Journal/Newspaper |
| Language: | unknown |
| Published: |
2019
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| Subjects: | |
| Online Access: | https://www.tandfonline.com/doi/full/10.1080/03067319.2019.1674846 http://elib.sfu-kras.ru/handle/2311/142721 https://doi.org/10.1080/03067319.2019.1674846 |
| Summary: | Novel silica-based adsorbent layer-by-layer modified with polyhexamethylene guanidine and 7-iodine-8-hydroxyquinoline-5-sulphonic acid (Ferron) was used for preconcentration and adsorption-fluorimetric determination of Zn(II). A simple and express method for adsorbent preparation is described in the present work. The prepared adsorbent extracts Zn(II) from solutions with pH of 5.0–7.0, with the formation of a luminescent complex λlum = 500 nm (λex = 380 nm) on the surface. An adsorption-fluorimetric method was developed for determination of Zn(II) in natural water using adsorbent sequentially modified with polyhexamethylene guanidine and Ferron; detection limit was 4 µg L−1. The procedure was used for the analysis of water from rivers and artesian wells of the Krasnoyarsk Krai (Russia). |
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