A system for in-situ filtration and extraction of organics in natural waters has been developed and tested down to 4000 m in the Atlantic Ocean. Up to 2000 dm3 water can be filtered and extracted at low suspended matter concentrations.<\/p>\n
The sampling equipment has new features for the analysis of trace organic compounds: contamination is extremely low, this can be checked and cured, if necessary, and water flow can be selected and maintained at a constant rate. Various resins can be applied, with different optimum flow rates for the efficient extraction of the compounds of interest. The properties of the resin (here XAD-2) do not change with depth. The operation of the unit is controlled by menu-driven software. All relevant data are stored for later evaluation.<\/p>\n
Tests in the deep Atlantic resulted in total procedural blanks, including sampling, as low as 0\/003 pg dm−3 for individual chlorobiphenyls (CBs), HCB and DDE and 0.5 pg dm−3 for individual PAHs. Actual dissolved concentrations were in the range 0.005\u20130.1 pg dm−3 for CBs, HCB and DDE and 0.5\u2013140 pg dm−3 for PAHs.<\/p>\n","protected":false},"excerpt":{"rendered":"
A system for in-situ filtration and extraction of organ […]<\/p>\n","protected":false},"author":1,"featured_media":0,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_uag_custom_page_level_css":"","site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"","footer-sml-layout":"","ast-disable-related-posts":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"default","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-opacity":"","overlay-gradient":""}},"footnotes":""},"categories":[15,14],"tags":[],"class_list":["post-2950","post","type-post","status-publish","format-standard","hentry","category-15","category-14"],"uagb_featured_image_src":{"full":false,"thumbnail":false,"medium":false,"medium_large":false,"large":false,"1536x1536":false,"2048x2048":false,"mailpoet_newsletter_max":false},"uagb_author_info":{"display_name":"administrator","author_link":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/author\/wayne\/"},"uagb_comment_info":0,"uagb_excerpt":"A system for in-situ filtration and extraction of organ...","_links":{"self":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/posts\/2950","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/comments?post=2950"}],"version-history":[{"count":0,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/posts\/2950\/revisions"}],"wp:attachment":[{"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/media?parent=2950"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/categories?post=2950"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/etdicwp2025.etdic.org.tw\/etdic\/wp-json\/wp\/v2\/tags?post=2950"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}