Determination of trace metal ions in water and plant samples using polyurethane foam modified with 2-aminothiazole

Autor:	N. Burham, Mohamed F. El-Shahat, S.M. Abdel-Azeem, Sayed R. Abdel-Hafeez
Rok vydání:	2014
Předmět:	Detection limit Sorbent Chemistry Metal ions in aqueous solution Analytical chemistry Infrared spectroscopy Ocean Engineering Sorption Pollution chemistry.chemical_compound Elemental analysis Trace metal Water Science and Technology Polyurethane
Zdroj:	Desalination and Water Treatment. :1-12
ISSN:	1944-3986 1944-3994
DOI:	10.1080/19443994.2014.965220
Popis:	2-Aminothiazole (AT) was covalently bonded to polyurethane foam (PUF) via –N=N–NH– group and used for preconcentration/separation of Ni(II), Zn(II), and Cd(II) from water, black tea, and plant leaves prior to flame atomic absorption spectrometry determination. The resulting AT–PUF sorbent was characterized by density measurement, elemental analysis, UV–vis, and IR spectroscopy. The optimum sorption of these elements was achieved at sample pH 5–6. The sorption capacity was found to be 461 ± 1.4, 341 ± 1.3, and 435 ± 2.4 μg g−1 and limit of detection (3σ) was 2.0, 3.0, and 3.0 μg L−1 for Ni(II), Zn(II), and Cd(II), respectively. The preconcentration factor was 100 for all elements. The developed method was successfully applied for determination of these elements in tap and lake water, spinach and parsley leaves, and black tea samples and the corresponding relative standard deviation values were less than 10%.
Databáze:	OpenAIRE
Externí odkaz:	https://explore.openaire.eu/search/publication?articleId=doi_________::27636d0d5b46c25e5bc807116fcf167a https://doi.org/10.1080/19443994.2014.965220 Zobrazit plný text záznamu