{"id":107,"date":"2011-11-23T18:26:12","date_gmt":"2011-11-23T17:26:12","guid":{"rendered":"http:\/\/wdb.ugr.es\/~fqm302\/blog\/?p=107"},"modified":"2011-11-23T18:26:12","modified_gmt":"2011-11-23T17:26:12","slug":"determination-of-carbamates-at-trace-levels-in-water-and-cucumber-by-capillary-liquid-chromatography","status":"publish","type":"post","link":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/?p=107","title":{"rendered":"Determination of carbamates at trace levels in water and cucumber by capillary liquid chromatography"},"content":{"rendered":"<p>A sensitive and reliable method using capillary HPLC with UV-diode array  detection (DAD) has been developed and validated for trace  determination of carbamate pesticides in cucumber and environmental  water samples. The analytes, including carbofuran, carbaryl, methiocarb,  promecarb, benthiocarb and fenoxycarb, present legal residue levels  regulated by the EU Council Directive 98\/83\/EC on drinking water and by  the Regulation (EC) No. 396\/2005 on vegetables. A previous off-line  solid-phase extraction (SPE) procedure was required for preconcentration  and sample clean-up. The separation was achieved using a C<sub>18<\/sub> column (150\u2009mm\u2009\u00d7\u20090.5\u2009mm I.D, 5\u2009\u00b5m particle size) and a mobile phase  consisting of ACN\u2009:\u2009water using gradient mode, with a flow rate of 10\u2009\u00b5l  min<sup>\u22121<\/sup>. Taking advantages of the characteristics of capillary  HPLC, low volume of sample and solvents were required, achieving limits  of detection for the studied compounds ranged from 10.0\u201329.6\u2009ng l<sup>\u22121<\/sup> for water samples and 1.8\u20135.6\u2009\u00b5g kg<sup>\u22121<\/sup> for cucumber, using UV-detection. Recoveries studies for fortified  samples, at three different concentration levels, were carried out  obtaining recoveries ranging from 70.0 to 111.1% and relative standard  deviations (RSDs) lower than 10.6%.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>A sensitive and reliable method using capillary HPLC with UV-diode array detection (DAD) has been developed and validated for trace determination of carbamate pesticides in cucumber and environmental water samples. The analytes, including carbofuran, carbaryl, methiocarb, promecarb, benthiocarb and fenoxycarb, &hellip; <a href=\"https:\/\/wpd.ugr.es\/~fqm302\/blog\/?p=107\">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":[73,74,9,17,33,88,58,61,62],"tags":[],"class_list":["post-107","post","type-post","status-publish","format-standard","hentry","category-capillary-hplc","category-carbamates","category-chromatography","category-food","category-pesticides","category-spe","category-uv-vis","category-vegetables-food","category-water"],"_links":{"self":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts\/107","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=107"}],"version-history":[{"count":0,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts\/107\/revisions"}],"wp:attachment":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=107"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=107"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=107"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}