{"id":168,"date":"2013-10-14T11:23:35","date_gmt":"2013-10-14T10:23:35","guid":{"rendered":"http:\/\/wdb.ugr.es\/~fqm302\/blog\/?p=168"},"modified":"2013-10-14T11:23:35","modified_gmt":"2013-10-14T10:23:35","slug":"ultrasound-assisted-surfactant-enhanced-emulsification-microextraction-for-the-determination-of-carbamates-in-wines-by-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry","status":"publish","type":"post","link":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/?p=168","title":{"rendered":"Ultrasound-assisted surfactant-enhanced emulsification microextraction for the determination of carbamates in wines by ultra-high performance liquid chromatography\u2013tandem mass spectrometry"},"content":{"rendered":"<p>A new sensitive multiresidue method based on ultra-high performance  liquid chromatography\u2013tandem mass spectrometry (UHPLC\u2013MS\/MS) has been  developed for the detection, confirmation and quantification of twenty  five carbamates in wine samples. The separation was achieved in 5.5\u00a0min,  using a Zorbax Eclipse plus RRHD C<sub>18<\/sub> column (50\u00a0mm\u00a0\u00d7\u00a02.1\u00a0mm,  1.8\u00a0\u03bcm), with a mobile phase of water and methanol, both of them with  0.01% formic acid. The analytes were detected in positive mode with  multiple reaction monitoring mode. Ultrasound-assisted  surfactant-enhanced emulsification microextraction (UASEME), using a  low-density extraction solvent has been optimized for the satisfactory  extraction of carbamates and clean-up of extracts. The matrix effect was  studied, showing that the proposed procedure provides very clean  extracts. Under optimum conditions, recoveries for fortified wine  samples ranged from 74 to 102%, with relative standard deviations lower  than 6%. Limits of quantification ranged from 0.15 to 0.92\u00a0\u03bcg\u00a0l<sup>\u22121<\/sup>, showing the high sensitivity of this fast and simple method and its compliance with current requirements.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A new sensitive multiresidue method based on ultra-high performance liquid chromatography\u2013tandem mass spectrometry (UHPLC\u2013MS\/MS) has been developed for the detection, confirmation and quantification of twenty five carbamates in wine samples. The separation was achieved in 5.5\u00a0min, using a Zorbax Eclipse &hellip; <a href=\"https:\/\/wpd.ugr.es\/~fqm302\/blog\/?p=168\">Continue reading <span class=\"meta-nav\">&rarr;<\/span><\/a><\/p>\n","protected":false},"author":2,"featured_media":0,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[74,26,56,57,63],"tags":[97,101],"class_list":["post-168","post","type-post","status-publish","format-standard","hentry","category-carbamates","category-mass-spectrometry","category-uaseme","category-uhplc","category-wine","tag-hplc","tag-ms"],"_links":{"self":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts\/168","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=168"}],"version-history":[{"count":0,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts\/168\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=168"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=168"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=168"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}