{"id":276,"date":"2017-07-19T10:35:31","date_gmt":"2017-07-19T09:35:31","guid":{"rendered":"http:\/\/wpd.ugr.es\/~fqm302\/blog\/?p=276"},"modified":"2017-07-19T10:35:31","modified_gmt":"2017-07-19T09:35:31","slug":"characterization-of-carbamate-pesticides-in-natural-water-from-cameroon","status":"publish","type":"post","link":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/?p=276","title":{"rendered":"Characterization of carbamate pesticides in natural water from Cameroon."},"content":{"rendered":"<p>With the increased use of chemicals in agriculture for crop protection and improvement of yield, the contamination of water is currently a serious health concern. This study used solid-phase extraction with ultra-high-performance liquid chromatography\u2013tandem mass spectrometry to evaluate the presence of 23 carbamate pesticides in waters from Cameroon. The separation was achieved in 5.5\u2009min using a C<sub>18<\/sub> column (50\u2009\u00d7\u20092.1\u2009mm, 1.8\u2009\u00b5m) with a mobile phase composed of water and methanol each containing 0.01% formic acid. The analytes were determined in positive multiple reaction monitoring mode. The recoveries for fortified water were from 75 to 99%, with relative standard deviations below 13%. The limits of detection ranged from 0.003 to 0.397\u2009\u00b5g\u2009L<sup>\u22121<\/sup>. The reported method is simple, sensitive, and accurate, and is a suitable alternative for routine monitoring of pesticide residues at ultra-trace levels. The analysis revealed the presence of propoxur at a concentration of 0.072\u2009\u00b5g\u2009L<sup>\u22121<\/sup> in stream water.<\/p>\n","protected":false},"excerpt":{"rendered":"<p>With the increased use of chemicals in agriculture for crop protection and improvement of yield, the contamination of water is currently a serious health concern. This study used solid-phase extraction with ultra-high-performance liquid chromatography\u2013tandem mass spectrometry to evaluate the presence &hellip; <a href=\"https:\/\/wpd.ugr.es\/~fqm302\/blog\/?p=276\">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":[74,26,85,33,88,57,62],"tags":[97,101,105],"class_list":["post-276","post","type-post","status-publish","format-standard","hentry","category-carbamates","category-mass-spectrometry","category-p12-agr-1647","category-pesticides","category-spe","category-uhplc","category-water","tag-hplc","tag-ms","tag-spe"],"_links":{"self":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts\/276","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=276"}],"version-history":[{"count":1,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts\/276\/revisions"}],"predecessor-version":[{"id":277,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=\/wp\/v2\/posts\/276\/revisions\/277"}],"wp:attachment":[{"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=276"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=276"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/wpd.ugr.es\/~fqm302\/blog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=276"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}