{"created":"2023-05-15T14:38:08.443465+00:00","id":49211,"links":{},"metadata":{"_buckets":{"deposit":"463bbf0c-e60d-47b9-89d2-94f1946f4a80"},"_deposit":{"created_by":1,"id":"49211","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"49211"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00049211","sets":["1"]},"author_link":["496501","496503","496505","496500","496504","496502","496506"],"item_8_biblio_info_7":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2016-09","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"17","bibliographicPageEnd":"8779","bibliographicPageStart":"8772","bibliographicVolumeNumber":"88","bibliographic_titles":[{"bibliographic_title":"Analytical Chemistry"}]}]},"item_8_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"High yield fission products, 135Cs and 137Cs, have entered the environment as a result of anthropogenic nuclear activities. Analytical methods for ultra-trace measurement of 135Cs and 137Cs are required for environmental geochemical and nuclear forensics studies. Here we report a highly sensitive analytical method combining the APEX-Q desolvation sample introduction system with triple-quadrupole inductively coupled plasma-mass spectrometry (AEPX-ICP-MS/MS) for the determination of 135Cs and 135Cs/137Cs isotope ratio at femtogram levels. Using the APEX-ICP-MS/MS system, we introduced only selected ions into the collision/reaction cell to react with N2O, significantly reducing the isobaric interferences (135Ba+ and 137Ba+) and polyatomic interferences (95Mo40Ar+, 97Mo40Ar+, 119Sn16O+, and 121Sb16O+). Compared to the standard instrument setup of ICP-MS/MS, the APEX-ICP-MS/MS enables a 10-fold sensitivity increase. In addition, an effective chemical separation scheme consisting of AMP Cs-selective adsorption and two-stage ion-exchange chromatographic separation was developed to remove major matrix elements and interfering elements from environmental samples (10-40g). This separation method showed high decontamination factors (104-107) for major matrix elements (Al, Ca, K, Mg, Na and Si) and interfering elements (Ba, Mo, Sb and Sn). The high sensitivity of APEX-ICP-MS/MS and the effective removal sample matrix allowed reliable analysis of 135Cs and 137Cs isotopes with extremely low detection limits (0.002 pg mL-1). The accuracy and applicability of the APEX-ICP-MS/MS method was validated by analysis of seven standard reference materials (soils, sediment and plants). For the first time, ultra-trace determination of 135Cs and 135Cs/137Cs isotope ratio at global fallout source environmental samples was achieved with the ICP-MS technique. ","subitem_description_type":"Abstract"}]},"item_8_publisher_8":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"ACS Publications"}]},"item_8_relation_14":{"attribute_name":"DOI","attribute_value_mlt":[{"subitem_relation_type_id":{"subitem_relation_type_id_text":"10.1021/acs.analchem.6b02150","subitem_relation_type_select":"DOI"}}]},"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":"Zheng, Jian"}],"nameIdentifiers":[{"nameIdentifier":"496500","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Cao, Liguo"}],"nameIdentifiers":[{"nameIdentifier":"496501","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Tagami, Keiko"}],"nameIdentifiers":[{"nameIdentifier":"496502","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"Uchida, Shigeo"}],"nameIdentifiers":[{"nameIdentifier":"496503","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"鄭 建","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"496504","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"田上 恵子","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"496505","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"内田 滋夫","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"496506","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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"Triple-quadrupole inductively coupled plasma-mass spectrometry with a high-efficiency sample introduction system for ultra-trace determination of  135Cs and 137Cs in environmental samples at femtogram levels ","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Triple-quadrupole inductively coupled plasma-mass spectrometry with a high-efficiency sample introduction system for ultra-trace determination of  135Cs and 137Cs in environmental samples at femtogram levels "}]},"item_type_id":"8","owner":"1","path":["1"],"pubdate":{"attribute_name":"公開日","attribute_value":"2018-10-17"},"publish_date":"2018-10-17","publish_status":"0","recid":"49211","relation_version_is_last":true,"title":["Triple-quadrupole inductively coupled plasma-mass spectrometry with a high-efficiency sample introduction system for ultra-trace determination of  135Cs and 137Cs in environmental samples at femtogram levels "],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T23:20:40.851245+00:00"}