{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,5,15]],"date-time":"2025-05-15T11:03:43Z","timestamp":1747307023096},"reference-count":0,"publisher":"Oxford University Press (OUP)","issue":"6","license":[{"start":{"date-parts":[[2011,11,1]],"date-time":"2011-11-01T00:00:00Z","timestamp":1320105600000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/journals\/pages\/open_access\/funder_policies\/chorus\/standard_publication_model"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2011,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n               <jats:p>A new method is presented for simultaneous preconcentration of trace Fe(III) and Cr(III) by using polyacrylic acid-alumina as a sorbent. The separation\/preconcentration conditions of analytes were investigated, including effect of pH, flow rate, elution conditions, sample volume, and interfering ions. At pH 4, the maximum sorption capacities of Fe3+ and Cr3+ were 8.0 and 13.0 mg\/g, respectively, by the column method. The linearity was maintained in the concentration range of 0.175\u20136.0 \u00d7 103 ng\/mL for iron and 0.175\u20138.0 \u00d7 103 ng\/mL for chromium in the original solution. The RSD values under optimum conditions were \u00b11.73 and \u00b11.28% for 2.0 \u03bcg\/mL Fe and Cr, respectively. The preconcentration factor was 400 for both of the elements, and detection limits were 0.025 and 0.023 ng\/mL for Fe and Cr in the original solutions. The proposed method was successfully applied to the determination of trace amounts of Fe and Cr in plant samples.<\/jats:p>","DOI":"10.5740\/jaoacint.10-483","type":"journal-article","created":{"date-parts":[[2011,12,12]],"date-time":"2011-12-12T15:02:47Z","timestamp":1323702167000},"page":"1918-1924","source":"Crossref","is-referenced-by-count":2,"title":["Polyacrylic Acid-Modified Alumina for Solid-Phase Extraction and Preconcentration of Trace Iron and Chromium from Plant Samples"],"prefix":"10.1093","volume":"94","author":[{"given":"Fatemeh","family":"Sabermahani","sequence":"first","affiliation":[{"name":"Shahid Bahonar University of Kerman, Department of Chemistry, Kerman, Iran Payame Noor University of Kerman, Department of Chemistry, Kerman, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Mohammad Ali","family":"Taher","sequence":"additional","affiliation":[{"name":"Shahid Bahonar University of Kerman, Department of Chemistry, Kerman, Iran"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"286","published-online":{"date-parts":[[2019,11,27]]},"container-title":["Journal of AOAC INTERNATIONAL"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/academic.oup.com\/jaoac\/article-pdf\/94\/6\/1918\/32421933\/jaoac1918.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"syndication"},{"URL":"http:\/\/academic.oup.com\/jaoac\/article-pdf\/94\/6\/1918\/32421933\/jaoac1918.pdf","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2020,7,17]],"date-time":"2020-07-17T14:06:44Z","timestamp":1594994804000},"score":1,"resource":{"primary":{"URL":"https:\/\/academic.oup.com\/jaoac\/article\/94\/6\/1918\/5655534"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2011,11,1]]},"references-count":0,"journal-issue":{"issue":"6","published-online":{"date-parts":[[2019,11,27]]},"published-print":{"date-parts":[[2011,11,1]]}},"URL":"https:\/\/doi.org\/10.5740\/jaoacint.10-483","relation":{},"ISSN":["1060-3271","1944-7922"],"issn-type":[{"value":"1060-3271","type":"print"},{"value":"1944-7922","type":"electronic"}],"subject":[],"published-other":{"date-parts":[[2011,11,1]]},"published":{"date-parts":[[2011,11,1]]}}}