{"created":"2023-07-25T09:58:35.947703+00:00","id":1724,"links":{},"metadata":{"_buckets":{"deposit":"c324eefc-6457-42e7-835e-2f9d26a071e1"},"_deposit":{"created_by":15,"id":"1724","owners":[15],"pid":{"revision_id":0,"type":"depid","value":"1724"},"status":"published"},"_oai":{"id":"oai:oacis.repo.nii.ac.jp:00001724","sets":["187:189:338","187:189:339","41:335","70:337"]},"author_link":["2106","2798","2804","2793","2797"],"item_3_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-06-01","bibliographicIssueDateType":"Issued"},"bibliographicPageEnd":"70","bibliographicPageStart":"66","bibliographicVolumeNumber":"153","bibliographic_titles":[{"bibliographic_title":"Talanta"}]}]},"item_3_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Determining the total particulate phosphorus (TPP) and particulate inorganic phosphorus (PIP) in oligotrophic oceanic water generally requires the filtration of a large amount of water sample. This paper describes methods that require small filtration volumes for determining the TPP and PIP concentrations. The methods were devised by validating or improving conventional sample processing and by applying highly sensitive liquid waveguide spectrophotometry to the measurements of oxidized or acid-extracted phosphate from TPP and PIP, respectively. The oxidation of TPP was performed by a chemical wet oxidation method using 3% potassium persulfate. The acid extraction of PIP was initially carried out based on the conventional extraction methodology, which requires 1 M HCl, followed by the procedure for decreasing acidity. While the conventional procedure for acid removal requires a ten-fold dilution of the 1 M HCl extract with purified water, the improved procedure proposed in this study uses 8 M NaOH solution for neutralizing 1 M HCl extract in order to reduce the dilution effect. An experiment for comparing the absorbances of the phosphate standard dissolved in 0.1 M HCl and of that dissolved in a neutralized solution [1 M HCl : 8 M NaOH = 8:1 (v:v)] exhibited a higher absorbance in the neutralized solution. This indicated that the improved procedure completely removed the acid effect, which reduces the sensitivity of the phosphate measurement. Application to an ultraoligotrophic water sample showed that the TPP concentration in a 1075 mL-filtered sample was 8.4 nM with a coefficient of variation (CV) of 4.3% and the PIP concentration in a 2300 mL-filtered sample was 1.3 nM with a CV of 6.1%. Based on the detection limit (3 nM) of the sensitive phosphate measurement and the ambient TPP and PIP concentrations of the ultraoligotrophic water, the minimum filtration volumes required for the detection of TPP and PIP were estimated to be 15 and 52 mL, respectively."}]},"item_3_description_63":{"attribute_name":"研究課題番号","attribute_value_mlt":[{"subitem_description":"15H02802"}]},"item_3_publisher_32":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"Elsevier B.V."}]},"item_3_relation_11":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type":"isVersionOf","subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.talanta.2016.02.058","subitem_relation_type_select":"DOI"}}]},"item_3_relation_13":{"attribute_name":"情報源","attribute_value_mlt":[{"subitem_relation_name":[{"subitem_relation_name_text":"Publisher's Version/PDF"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://doi.org/10.1016/j.talanta.2016.02.058","subitem_relation_type_select":"DOI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"KAKEN研究課題: 天然放射性リン同位体による亜熱帯海域のリン供給過程の解明"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://kaken.nii.ac.jp/ja/grant/KAKENHI-PROJECT-15H02802/","subitem_relation_type_select":"URI"}},{"subitem_relation_name":[{"subitem_relation_name_text":"研究代表者: 神田穣太 (東京海洋大学)"}],"subitem_relation_type_id":{"subitem_relation_type_id_text":"https://nrid.nii.ac.jp/ja/nrid/1000060202032/","subitem_relation_type_select":"URI"}}]},"item_3_rights_12":{"attribute_name":"権利","attribute_value_mlt":[{"subitem_rights":"(c) 2016 Elsevier B.V.. This is the author's version of the work. It is posted here for your personal use. Not for redistribution. The definitive Version of Record was published in https://doi.org/10.1016/j.talanta.2016.02.058"}]},"item_3_source_id_7":{"attribute_name":"ISSN","attribute_value_mlt":[{"subitem_source_identifier":"00399140","subitem_source_identifier_type":"ISSN"}]},"item_3_source_id_9":{"attribute_name":"書誌レコードID","attribute_value_mlt":[{"subitem_source_identifier":"AA11539538","subitem_source_identifier_type":"NCID"}]},"item_3_subject_62":{"attribute_name":"件名","attribute_value_mlt":[{"subitem_subject":"科学研究費研究成果"}]},"item_3_subject_64":{"attribute_name":"科学研究費研究課題","attribute_value_mlt":[{"subitem_subject":"天然放射性リン同位体による亜熱帯海域のリン供給過程の解明"},{"subitem_subject":"Cosmogenic radiotracer study of phosphorus cycling in oligotrophic subtropical ocean"}]},"item_3_version_type_15":{"attribute_name":"著者版フラグ","attribute_value_mlt":[{"subitem_version_resource":"http://purl.org/coar/version/c_ab4af688f83e57aa","subitem_version_type":"AM"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Ehama, Makoto"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Hashihama, Fuminori"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"Kinouchi, Shinko"}],"nameIdentifiers":[{}]},{"creatorNames":[{"creatorName":"Kanda, Jota"}],"nameIdentifiers":[{},{}]},{"creatorNames":[{"creatorName":"Saito, Hiroaki"}],"nameIdentifiers":[{}]}]},"item_files":{"attribute_name":"ファイル情報","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_date","date":[{"dateType":"Available","dateValue":"2019-04-17"}],"displaytype":"detail","filename":"15H02802_Talanta_153-66.pdf","filesize":[{"value":"246.6 kB"}],"format":"application/pdf","licensetype":"license_11","mimetype":"application/pdf","url":{"label":"15H02802_Talanta_153-66.pdf","url":"https://oacis.repo.nii.ac.jp/record/1724/files/15H02802_Talanta_153-66.pdf"},"version_id":"a8d8f679-ee10-44a2-868f-014f46278cd0"}]},"item_keyword":{"attribute_name":"キーワード","attribute_value_mlt":[{"subitem_subject":"Total particulate phosphorus","subitem_subject_scheme":"Other"},{"subitem_subject":"Particulate inorganic phosphorus","subitem_subject_scheme":"Other"},{"subitem_subject":"Liquid waveguide spectrophotometry","subitem_subject_scheme":"Other"}]},"item_language":{"attribute_name":"言語","attribute_value_mlt":[{"subitem_language":"eng"}]},"item_resource_type":{"attribute_name":"資源タイプ","attribute_value_mlt":[{"resourcetype":"journal article"}]},"item_title":"Sensitive determination of total particulate phosphorus and particulate inorganic phosphorus in seawater using liquid waveguide spectrophotometry","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Sensitive determination of total particulate phosphorus and particulate inorganic phosphorus in seawater using liquid waveguide spectrophotometry"}]},"item_type_id":"3","owner":"15","path":["335","337","338","339"],"pubdate":{"attribute_name":"公開日","attribute_value":"2019-04-22"},"publish_date":"2019-04-22","publish_status":"0","recid":"1724","relation_version_is_last":true,"title":["Sensitive determination of total particulate phosphorus and particulate inorganic phosphorus in seawater using liquid waveguide spectrophotometry"],"weko_creator_id":"15","weko_shared_id":-1},"updated":"2023-07-25T10:45:06.799688+00:00"}