{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,24]],"date-time":"2026-03-24T15:00:42Z","timestamp":1774364442679,"version":"3.50.1"},"reference-count":33,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2010,1,20]],"date-time":"2010-01-20T00:00:00Z","timestamp":1263945600000},"content-version":"vor","delay-in-days":19,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"name":"Spanish Ministry of Education and Science"},{"name":"European Regional Development Funds","award":["GCL2007-66687-C02-01"],"award-info":[{"award-number":["GCL2007-66687-C02-01"]}]},{"name":"Food Safety Platform Programme of the Conselleria de Sanitat of the Generalitat Valenciana","award":["PLAT2008-A-004"],"award-info":[{"award-number":["PLAT2008-A-004"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["J of Separation Science"],"published-print":{"date-parts":[[2010,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>A method based on pressurized liquid extraction and LC\u2010MS\/MS has been developed for determining nine benzoylureas (BUs) in fruit, vegetable, cereals, and animal products. Samples (5\u2009g) were homogenized with diatomaceous earth and extracted in a 22\u2009mL cell with 22\u2009mL of ethyl acetate at 80\u00b0C and 1500\u2009psi. After solvent concentration and exchange to methanol, BUs were analyzed by LC\u2010MS\/MS using an IT mass analyzer, which achieved several transitions of precursor ions that increase selectivity providing identification. LOQs were between 0.002 and 0.01\u2009mg\/kg, which are equal or lower than maximum residue limits established by the Codex Alimentarius. Excellent linearity was achieved over a range of concentrations from 0.01 to 1\u2009mg\/kg with correlation coefficients 0.995\u20130.999 (<jats:italic>n<\/jats:italic>=7). Validation of the total method was performed by analyzing in quintuplicate seven different commodities (milk, eggs, meat, rice, lettuce, avocado, and lemon) at three concentration levels (0.01, 0.1, and 1\u2009mg\/kg). The recoveries ranged from 58 to 97% and the RSDs from 5 to 19% depending on the compound and the commodity. The combination of pressurized liquid extraction with LC\u2010MS\/MS provides a sensitive and selective method for the determination of BUs in food.<\/jats:p>","DOI":"10.1002\/jssc.200900314","type":"journal-article","created":{"date-parts":[[2010,1,20]],"date-time":"2010-01-20T12:36:39Z","timestamp":1263990999000},"page":"1-10","source":"Crossref","is-referenced-by-count":102,"title":["Determination of benzoylurea insecticides in food by pressurized liquid extraction and LC\u2010MS"],"prefix":"10.1002","volume":"33","author":[{"given":"Monia","family":"Brutti","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cristina","family":"Blasco","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Yolanda","family":"Pic\u00f3","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2010,1,20]]},"reference":[{"key":"e_1_2_6_2_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.talanta.2008.07.052"},{"key":"e_1_2_6_3_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.talanta.2008.04.052"},{"key":"e_1_2_6_4_2","doi-asserted-by":"publisher","DOI":"10.1002\/ps.812"},{"key":"e_1_2_6_5_2","doi-asserted-by":"publisher","DOI":"10.1365\/s10337-007-0380-x"},{"key":"e_1_2_6_6_2","doi-asserted-by":"publisher","DOI":"10.1016\/j.bmcl.2008.12.020"},{"key":"e_1_2_6_7_2","doi-asserted-by":"publisher","DOI":"10.1021\/jf048561n"},{"key":"e_1_2_6_8_2","first-page":"1379","volume":"34","author":"He H. 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