{"created":"2022-01-28T07:18:41.777609+00:00","id":2008844,"links":{},"metadata":{"_buckets":{"deposit":"30eae697-7920-41e9-bbda-8a313ac53cfc"},"_deposit":{"id":"2008844","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"2008844"},"status":"published"},"_oai":{"id":"oai:u-ryukyu.repo.nii.ac.jp:02008844","sets":["1642838163960:1642838338003","1642838403551:1642838406414"]},"author_link":[],"item_1617186331708":{"attribute_name":"Title","attribute_value_mlt":[{"subitem_1551255647225":"Improved Method for Seawater Lithium Isotopic Ratio Determination Using","subitem_1551255648112":"en"},{"subitem_1551255647225":"マルチコレクターICP-MSを用いた海水中のリチウム同位体比分析法の開発","subitem_1551255648112":"ja"}]},"item_1617186419668":{"attribute_name":"Creator","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Toki, Tomohiro","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Heshiki, Sawako","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"Shinjo, Ryuici","creatorNameLang":"en"}]},{"creatorNames":[{"creatorName":"土岐, 知弘","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"平敷, 紗和子","creatorNameLang":"ja"}]},{"creatorNames":[{"creatorName":"新城, 竜一","creatorNameLang":"ja"}]}]},"item_1617186476635":{"attribute_name":"Access Rights","attribute_value_mlt":[{"subitem_1522299639480":"open access","subitem_1600958577026":"http://purl.org/coar/access_right/c_abf2"}]},"item_1617186609386":{"attribute_name":"Subject","attribute_value_mlt":[{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Li isotopic ratio"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"Seawater"},{"subitem_1522299896455":"en","subitem_1522300014469":"Other","subitem_1523261968819":"MC-ICP-MS"}]},"item_1617186626617":{"attribute_name":"Description","attribute_value_mlt":[{"subitem_description":"multi-collector ICP mass spectrometer （MC-ICP-MS）. The method involves a single-step column separation, and improvements in sensitivity\\nand precision are achieved by the use of an X-type skimmer cone and relatively low plasma RF power on MC-ICP-MS. With this\\nmethod, the δ7\\nLi value in standard seawater （NASS-5） was measured to be ＋30.97 ± 0.31 ‰（2σ）, which is consistent with the reported\\nvalue in previous studies. We obtained δ7\\nLi ＝＋30.82 ‰ of surface seawater from the East China Sea, which is the same as\\nthose for open oceans, suggesting that the surface seawater is not influenced by meteoric water from the Eurasian Continent. As the\\nsampling location is in the flow passage of the Kuroshio Current, the value represents the δ7\\nLi value of the Kuroshio Current.","subitem_description_type":"Other"},{"subitem_description":"本論文では，マルチコレクターICP-MSを用いた海水中のリチウム同位体比の簡便で正確，かつ感度のよい分析方法を報告する．まず，分離は一段階のカラム分離だけで行い，Xタイプのスキマーコーン及び低レベルに抑えたプラズマを用いることによって，精度と感度も確保した．本方法を用いて測定した標準海水（NASS-5）は，これまでの報告値とよく一致している．さらに，これまで明らかにされていない東シナ海の表層海水中のリチウム同位体比も測定した．得られた値は，外洋の値と一致しており，採取した場所が大陸からの陸水の影響を受けていないことを示唆している．また，採取した場所が黒潮の流路にあることも鑑みると，今回明らかになった値は黒潮の値を示していると考えられる．今後の水塊の移動過程や起源の研究において，こういった知見は大きな意義を持つ．","subitem_description_type":"Other"},{"subitem_description":"論文","subitem_description_type":"Other"}]},"item_1617186643794":{"attribute_name":"Publisher","attribute_value_mlt":[{"subitem_1522300295150":"en","subitem_1522300316516":"The Society of Sea Water Science, Japan"},{"subitem_1522300295150":"ja","subitem_1522300316516":"日本海水学会"}]},"item_1617186702042":{"attribute_name":"Language","attribute_value_mlt":[{"subitem_1551255818386":"eng"}]},"item_1617186783814":{"attribute_name":"Identifier","attribute_value_mlt":[{"subitem_identifier_type":"HDL","subitem_identifier_uri":"http://hdl.handle.net/20.500.12000/37631"}]},"item_1617186920753":{"attribute_name":"Source Identifier","attribute_value_mlt":[{"subitem_1522646500366":"ISSN","subitem_1522646572813":"2185-9213"},{"subitem_1522646500366":"ISSN","subitem_1522646572813":"0369-4550"}]},"item_1617186941041":{"attribute_name":"Source Title","attribute_value_mlt":[{"subitem_1522650068558":"ja","subitem_1522650091861":"日本海水学会誌"},{"subitem_1522650068558":"en","subitem_1522650091861":"Bulletin of the Society of Sea Water Science, Japan"}]},"item_1617187056579":{"attribute_name":"Bibliographic Information","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2015","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"5","bibliographicPageEnd":"331","bibliographicPageStart":"326","bibliographicVolumeNumber":"69"}]},"item_1617258105262":{"attribute_name":"Resource Type","attribute_value_mlt":[{"resourcetype":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_1617265215918":{"attribute_name":"Version Type","attribute_value_mlt":[{"subitem_1522305645492":"VoR","subitem_1600292170262":"http://purl.org/coar/version/c_970fb48d4fbd8a85"}]},"item_1617353299429":{"attribute_name":"Relation","attribute_value_mlt":[{"subitem_1522306287251":{"subitem_1522306382014":"DOI","subitem_1522306436033":"https://doi.org/10.11457/swsj.69.326"}},{"subitem_1522306287251":{"subitem_1522306382014":"DOI","subitem_1522306436033":"info:doi/10.11457/swsj.69.326"}}]},"item_1617605131499":{"attribute_name":"File","attribute_type":"file","attribute_value_mlt":[{"accessrole":"open_access","filename":"69_326.pdf","mimetype":"application/pdf","url":{"objectType":"fulltext","url":"https://u-ryukyu.repo.nii.ac.jp/record/2008844/files/69_326.pdf"},"version_id":"e331c5e2-5ba8-4e59-9da9-ea6092a1c9f2"}]},"item_title":"Improved Method for Seawater Lithium Isotopic Ratio Determination Using","item_type_id":"15","owner":"1","path":["1642838338003","1642838406414"],"pubdate":{"attribute_name":"PubDate","attribute_value":"2018-01-30"},"publish_date":"2018-01-30","publish_status":"0","recid":"2008844","relation_version_is_last":true,"title":["Improved Method for Seawater Lithium Isotopic Ratio Determination Using"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-08-03T05:41:34.375277+00:00"}