{"created":"2021-03-01T06:43:44.586246+00:00","id":8353,"links":{},"metadata":{"_buckets":{"deposit":"c884dad3-0081-4b55-a1db-7197ee078cf3"},"_deposit":{"id":"8353","owners":[],"pid":{"revision_id":0,"type":"depid","value":"8353"},"status":"published"},"_oai":{"id":"oai:tsukuba.repo.nii.ac.jp:00008353","sets":["3:233:254"]},"author_link":["34766"],"item_12_biblio_info_6":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"2001","bibliographicIssueDateType":"Issued"}}]},"item_12_date_granted_46":{"attribute_name":"学位授与年月日","attribute_value_mlt":[{"subitem_dategranted":"2001-02-28"}]},"item_12_degree_grantor_44":{"attribute_name":"学位授与大学","attribute_value_mlt":[{"subitem_degreegrantor":[{"subitem_degreegrantor_language":"ja","subitem_degreegrantor_name":"筑波大学"},{"subitem_degreegrantor_language":"en","subitem_degreegrantor_name":"University of Tsukuba"}],"subitem_degreegrantor_identifier":[{"subitem_degreegrantor_identifier_name":"12102","subitem_degreegrantor_identifier_scheme":"kakenhi"}]}]},"item_12_degree_name_43":{"attribute_name":"取得学位","attribute_value_mlt":[{"subitem_degreename":"博士（理学）"},{"subitem_degreename":"Doctor of Philosophy in Science"}]},"item_12_description_4":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"In recent years, mass spectrometers have become an indispensable instrument for identifying substances from their mass date in a wide variety of scientific research fields. 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