{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,28]],"date-time":"2026-07-28T03:51:09Z","timestamp":1785210669151,"version":"3.55.0"},"reference-count":17,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2013,10,29]],"date-time":"2013-10-29T00:00:00Z","timestamp":1383004800000},"content-version":"vor","delay-in-days":301,"URL":"http:\/\/creativecommons.org\/licenses\/by\/3.0\/"}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["The Scientific World Journal"],"published-print":{"date-parts":[[2013,1]]},"abstract":"<jats:p>The control of levels of anticoccidial feed additives in targeted feeds plays an important role in the assurance of efficiency of animal treatment, prevention of drug resistance, and food safety. The robust and labour\u2010efficient method for the simultaneous determination of six ionophore coccidiostats (lasalocid, maduramicin, monensin, narasin, salinomycin, and semduramicin) in targeted feed has been developed. Properly grinded and homogenized feed sample was spiked with internal standard (monesin methyl ester) and extracted with methanol. The extract was analysed with reversed phase HPLC without any further purification. The separation of the analytes with conventional C18 and core\u2010shell columns was compared. Lasalocid was analysed with fluorescence detection, whereas other ionophores were detected with UV\u2010Vis detector after derivatisation with vanillin in the presence of sulfuric acid. Fortified samples and targeted feeds at authorized levels were used for method validation. Recovery was in the range of 85\u2013110%, depending on the analyte. The within\u2010laboratory reproducibility did not exceed the target value from Horwitz equation. The results of the proficiency tests (<jats:italic>z<\/jats:italic>\u2010scores in the range of \u22121.0 to 1.9) confirmed the reliability of the developed protocol.<\/jats:p>","DOI":"10.1155\/2013\/763402","type":"journal-article","created":{"date-parts":[[2013,10,29]],"date-time":"2013-10-29T22:27:25Z","timestamp":1383085645000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":12,"title":["The Determination of Six Ionophore Coccidiostats in Feed by Liquid Chromatography with Postcolumn Derivatisation and Spectrofotometric\/Fluorescence Detection"],"prefix":"10.1155","volume":"2013","author":[{"ORCID":"https:\/\/orcid.org\/0000-0003-2106-2473","authenticated-orcid":false,"given":"Ma\u0142gorzata","family":"Olejnik","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Piotr","family":"Jedziniak","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Teresa","family":"Szprengier-Juszkiewicz","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2013,10,29]]},"reference":[{"key":"e_1_2_6_1_2","unstructured":"European Union Register of Feed Additives pursuant to Regulation (EC) No 1831\/2003 Edition 157 2013."},{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1039\/an9851001283"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1080\/02652030802225973"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1093\/jaoac\/80.4.693"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpba.2011.11.017"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.5740\/jaoacint.11-023"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpba.2010.06.011"},{"key":"e_1_2_6_8_2","doi-asserted-by":"publisher","DOI":"10.1002\/rcm.4533"},{"key":"e_1_2_6_9_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.jpba.2008.03.005"},{"key":"e_1_2_6_10_2","doi-asserted-by":"publisher","DOI":"10.1093\/jaoac\/89.5.1229"},{"key":"e_1_2_6_11_2","unstructured":"Animal feeding stuffs Determination of monensin narasin and salinomycin contents. Liquid chromatographic method using post-column derivatisation ISO 14183 2005."},{"key":"e_1_2_6_12_2","unstructured":"Animal feeding stuffs Determination of maduramicin-ammonium by reversed-phase HPLC using post-column derivatisation EN 15781 2009."},{"key":"e_1_2_6_13_2","unstructured":"Animal feeding stuffs Determination of semduramicin content. Liquid chromatographic method using a \u201ctree\u201d analytical approach EN 16158 2012."},{"key":"e_1_2_6_14_2","doi-asserted-by":"publisher","DOI":"10.1039\/b000282h"},{"key":"e_1_2_6_15_2","doi-asserted-by":"publisher","DOI":"10.1351\/pac200274050835"},{"key":"e_1_2_6_16_2","first-page":"8","article-title":"Commission Decision 2002\/675\/EC of 12 August 2002 implementing Council Directive Directive 96\/23\/EC concerning the performance of analytical methods and the interpretation of results","volume":"221","year":"2002","journal-title":"Official Journal of the European Communities"},{"key":"e_1_2_6_17_2","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(99)00044-8"}],"container-title":["The Scientific World Journal"],"original-title":[],"language":"en","link":[{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2013\/763402.pdf","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"http:\/\/downloads.hindawi.com\/journals\/tswj\/2013\/763402.xml","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1155\/2013\/763402","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2024,7,6]],"date-time":"2024-07-06T14:41:48Z","timestamp":1720276908000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1155\/2013\/763402"}},"subtitle":[],"editor":[{"given":"Z.","family":"Guo","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"editor"}]},{"given":"D. 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