{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,20]],"date-time":"2026-05-20T10:11:04Z","timestamp":1779271864370,"version":"3.51.4"},"reference-count":31,"publisher":"Wiley","license":[{"start":{"date-parts":[[2023,1,17]],"date-time":"2023-01-17T00:00:00Z","timestamp":1673913600000},"content-version":"unspecified","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"DOI":"10.13039\/501100008973","name":"University of Kurdistan","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100008973","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Journal of Analytical Methods in Chemistry"],"published-print":{"date-parts":[[2023,1,17]]},"abstract":"<jats:p>In this study, a magnetic metal-organic framework (MOF) was synthesized based on magnetic Fe3O4, Cu(II), and benzene-1,3,5-tricarboxylic acid (Cu-BTC) as a sorbent for solid phase extraction (SPE) of trace amounts of Pb(II) in water and lettuce samples. Pb(II) ion was adsorbed on the magnetic MOF and easily separated by a magnet; therefore, no filtration or centrifugation was necessary. The analyte ions were eluted by HCl 0.5\u2009mol\u00b7L\u22121 and analyzed via graphite furnace atomic absorption spectroscopy. The prepared sorbent was characterized by scanning electron microscopy (SEM), energy-dispersive spectroscopy (EDS), and Fourier transform-infrared (FT-IR) spectroscopy. Under optimal experimental conditions, the method had a linear range of 0.1\u201350\u2009\u03bcg\u00b7L\u22121. The limits of detection and quantitation for lead were found to be 0.026 and 0.08\u2009\u03bcg\u00b7L\u22121, respectively. The results showed that the prepared sorbent has high selectivity for Pb2+ even in the presence of other interfering metal ions.<\/jats:p>","DOI":"10.1155\/2023\/5424221","type":"journal-article","created":{"date-parts":[[2023,1,17]],"date-time":"2023-01-17T20:06:41Z","timestamp":1673986001000},"page":"1-10","source":"Crossref","is-referenced-by-count":13,"title":["Preconcentration of Pb(II) by Magnetic Metal-Organic Frameworks and Analysis Using Graphite Furnace Atomic Absorption Spectroscopy"],"prefix":"10.1155","volume":"2023","author":[{"given":"Arman","family":"Sharifi","sequence":"first","affiliation":[{"name":"Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-7952-7248","authenticated-orcid":true,"given":"Rahman","family":"Hallaj","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran"},{"name":"Research Center for Nanotechnology, University of Kurdistan, Sanandaj 66177-15175, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6469-2806","authenticated-orcid":true,"given":"Soleiman","family":"Bahar","sequence":"additional","affiliation":[{"name":"Department of Chemistry, University of Kurdistan, Sanandaj 66177-15175, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","reference":[{"issue":"1","key":"1","doi-asserted-by":"crossref","first-page":"157","DOI":"10.1016\/j.cej.2010.10.046","article-title":"Supported hydrophobic ionic liquid on nano-silica for adsorption of lead","volume":"166","author":"M. E. Mahmoud","year":"2011","journal-title":"Chemical Engineering Journal"},{"key":"2","volume-title":"Casarett & Doull\u2019s Toxicology: The Basic Science of Poisons","author":"J. Liu","year":"2008"},{"key":"3","doi-asserted-by":"publisher","DOI":"10.1021\/acs.analchem.6b01291"},{"key":"4","doi-asserted-by":"publisher","DOI":"10.1039\/c2an15939b"},{"key":"5","doi-asserted-by":"publisher","DOI":"10.1016\/j.foodchem.2010.12.159"},{"key":"6","doi-asserted-by":"publisher","DOI":"10.1016\/j.cej.2015.03.104"},{"key":"7","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhazmat.2007.05.001"},{"key":"8","doi-asserted-by":"publisher","DOI":"10.1016\/j.chroma.2010.09.060"},{"key":"9","doi-asserted-by":"publisher","DOI":"10.1039\/c4an01421a"},{"key":"10","doi-asserted-by":"publisher","DOI":"10.1016\/j.talanta.2018.05.100"},{"key":"11","doi-asserted-by":"publisher","DOI":"10.1016\/s0304-386x(03)00179-8"},{"key":"12","doi-asserted-by":"publisher","DOI":"10.1039\/c4ay02926g"},{"key":"13","doi-asserted-by":"publisher","DOI":"10.1016\/0003-2670(94)00509-k"},{"key":"14","doi-asserted-by":"publisher","DOI":"10.1016\/j.aca.2008.09.039"},{"key":"15","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhazmat.2009.03.028"},{"key":"16","doi-asserted-by":"publisher","DOI":"10.1039\/c4cc00113c"},{"key":"17","doi-asserted-by":"publisher","DOI":"10.1021\/ja507269n"},{"key":"18","doi-asserted-by":"publisher","DOI":"10.1021\/cr200304e"},{"key":"19","doi-asserted-by":"publisher","DOI":"10.1126\/science.1067208"},{"key":"20","doi-asserted-by":"publisher","DOI":"10.1039\/c0jm01770a"},{"key":"21","doi-asserted-by":"publisher","DOI":"10.1039\/c4cs00395k"},{"key":"22","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhazmat.2012.01.005"},{"key":"23","doi-asserted-by":"publisher","DOI":"10.1016\/j.jhazmat.2014.09.046"},{"key":"24","doi-asserted-by":"publisher","DOI":"10.1007\/s00604-013-0952-4"},{"key":"25","doi-asserted-by":"publisher","DOI":"10.1016\/j.jmmm.2010.09.009"},{"key":"26","doi-asserted-by":"publisher","DOI":"10.1039\/c4cc03728f"},{"key":"27","doi-asserted-by":"publisher","DOI":"10.1016\/j.foodchem.2015.02.080"},{"key":"28","doi-asserted-by":"publisher","DOI":"10.1007\/s00604-014-1223-8"},{"issue":"3","key":"29","first-page":"1185","article-title":"Combined cloud-point extraction and spectrophotometric detection of lead and cadmium in honey samples using a new ligand","volume":"10","author":"Z. A. A. Khammas","year":"2012","journal-title":"International Journal of Chemical Sciences"},{"key":"30","doi-asserted-by":"publisher","DOI":"10.1100\/2012\/640437"},{"key":"31","doi-asserted-by":"publisher","DOI":"10.1016\/j.jfca.2020.103661"}],"container-title":["Journal of Analytical Methods in Chemistry"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/jamc\/2023\/5424221.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/jamc\/2023\/5424221.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/jamc\/2023\/5424221.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,1,17]],"date-time":"2023-01-17T20:06:45Z","timestamp":1673986005000},"score":1,"resource":{"primary":{"URL":"https:\/\/www.hindawi.com\/journals\/jamc\/2023\/5424221\/"}},"subtitle":[],"editor":[{"given":"Luca","family":"Tortora","sequence":"additional","affiliation":[],"role":[{"role":"editor","vocabulary":"crossref"}]}],"short-title":[],"issued":{"date-parts":[[2023,1,17]]},"references-count":31,"alternative-id":["5424221","5424221"],"URL":"https:\/\/doi.org\/10.1155\/2023\/5424221","relation":{},"ISSN":["2090-8873","2090-8865"],"issn-type":[{"value":"2090-8873","type":"electronic"},{"value":"2090-8865","type":"print"}],"subject":[],"published":{"date-parts":[[2023,1,17]]}}}