{"created":"2023-05-15T15:02:44.093538+00:00","id":85056,"links":{},"metadata":{"_buckets":{"deposit":"5e217424-3446-4f8b-8dac-ae23573236bc"},"_deposit":{"created_by":1,"id":"85056","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"85056"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00085056","sets":["10:28"]},"author_link":["1025723","1025724","1025721","1025725","1025720","1025719","1025722","1025718"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2022-03-01","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"Natural uranium comprises of three natural isotopes such as 238U, 235U and 234U with relative isotopic abundances of 99.27%, 0.72% and 0.0055%, respectively. The concentration of uranium in Japanese rivers water ranged from 0.13 to 590 pg mL-1 with a mean value of 54.7 pg mL-1, which is three magnitudes lower than World Health Organization (WHO) recommended value (30 µgL-1). Hence, the isotope ratios measurement of 234U/238U and 235U/238U in low concentrated water samples is a challenging task. \nThe 234U/238U and 235U/238U isotope ratios were measured using a multicollector inductively coupled plasma mass spectrometry (MC-ICP-MS). The combination of 1012 Ohm resistor Faraday cup and Daly detectors are used for low abundance of 234U measurement. A standard solution containing 50 pg mL-1 of U was selected for accuracy and precision measurement of 234U/238U and 235U/238U isotope ratios. MC-ICP-MS coupled with desolvating nebulizer system could measure U isotope ratios at picogram level in ground water, river water, pond water and stream water from Fukushima prefecture. The DGA-normal extraction chromatography resin was used for the chemical separation of U from other elements in water samples. Further data will be present during presentation.","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"福島大学環境放射能研究所第8回成果報告会","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Murugan, Rajamanickam"}],"nameIdentifiers":[{"nameIdentifier":"1025718","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kavasi, Norbert"}],"nameIdentifiers":[{"nameIdentifier":"1025719","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sahoo, Sarata"}],"nameIdentifiers":[{"nameIdentifier":"1025720","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tatsuo, Aono"}],"nameIdentifiers":[{"nameIdentifier":"1025721","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Murugan, Rajamanickam","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1025722","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Kavasi, Norbert","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1025723","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Sahoo, Sarata","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1025724","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tatsuo, Aono","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"1025725","nameIdentifierScheme":"WEKO"}]}]},"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":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Accurate measurement of 234U/238U and 235U/238U isotope ratio in water samples at picogram level using multi collector inductively couple plasma mass spectrometry","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Accurate measurement of 234U/238U and 235U/238U isotope ratio in water samples at picogram level using multi collector inductively couple plasma mass spectrometry"}]},"item_type_id":"10005","owner":"1","path":["28"],"pubdate":{"attribute_name":"公開日","attribute_value":"2022-01-13"},"publish_date":"2022-01-13","publish_status":"0","recid":"85056","relation_version_is_last":true,"title":["Accurate measurement of 234U/238U and 235U/238U isotope ratio in water samples at picogram level using multi collector inductively couple plasma mass spectrometry"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T18:01:57.367974+00:00"}