{"id":7,"date":"2005-03-09T16:49:06","date_gmt":"2005-03-09T21:49:06","guid":{"rendered":"http:\/\/www.nomad.priv.at\/researchblog\/?p=7"},"modified":"2005-03-09T16:49:06","modified_gmt":"2005-03-09T21:49:06","slug":"searching-for-internal-standards","status":"publish","type":"post","link":"http:\/\/www.nomad.priv.at\/researchblog\/?p=7","title":{"rendered":"Searching for  internal standards"},"content":{"rendered":"<p>For a while now I have been trying to find a good source for suitable internal standards for VOC quantification using GC-MS. For aromatics I was able to come up with chlorobenzene-d5 from an EPA paper and it turned out to work pretty well for some of the aromatics that I found in my snow samples. <\/p>\n<p>For the organo-halides, the situation seems more difficult. I have managed to come up with with a bunch of compounds (e.g. fluorobenzene, bromo-chloromethane, 2-bromo-1-chloro-propane), but it is difficult to find a list of the analytes that they can quantify. My searches for papers using these compounds as IS has not been too successful either.<\/p>\n<p>Well, if I can not come up with a reliable source soon, I will start trying myself and see, if they work with the halogenated compounds that I have found in my snow samples (e.g. diiodomethane, chloroform, dibromomethane).<\/p>\n","protected":false},"excerpt":{"rendered":"<p>For a while now I have been trying to find a good source for suitable internal standards for VOC quantification using GC-MS. For aromatics I was able to come up with chlorobenzene-d5 from an EPA paper and it turned out to work pretty well for some of the aromatics that I found in my snow &hellip; <a href=\"http:\/\/www.nomad.priv.at\/researchblog\/?p=7\" class=\"more-link\">Continue reading <span class=\"screen-reader-text\">Searching for  internal standards<\/span><\/a><\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[4],"tags":[],"class_list":["post-7","post","type-post","status-publish","format-standard","hentry","category-research"],"_links":{"self":[{"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=\/wp\/v2\/posts\/7","targetHints":{"allow":["GET"]}}],"collection":[{"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=\/wp\/v2\/posts"}],"about":[{"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcomments&post=7"}],"version-history":[{"count":0,"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=\/wp\/v2\/posts\/7\/revisions"}],"wp:attachment":[{"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=%2Fwp%2Fv2%2Fmedia&parent=7"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=%2Fwp%2Fv2%2Fcategories&post=7"},{"taxonomy":"post_tag","embeddable":true,"href":"http:\/\/www.nomad.priv.at\/researchblog\/index.php?rest_route=%2Fwp%2Fv2%2Ftags&post=7"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}