{"_buckets": {"deposit": "c7e8701f-6ff0-4fb0-8c1b-581aea551901"}, "_deposit": {"created_by": 4, "id": "2000226", "owner": "4", "owners": [4], "owners_ext": {"displayname": "新潟大学附属図書館", "username": "niigata_u"}, "pid": {"revision_id": 0, "type": "depid", "value": "2000226"}, "status": "published"}, "_oai": {"id": "oai:niigata-u.repo.nii.ac.jp:02000226", "sets": ["456", "1642746629845"]}, "author_link": [], "item_1627361970403": {"attribute_name": "出版タイプ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_7_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2021-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "42", "bibliographicPageStart": "21", "bibliographicVolumeNumber": "36", "bibliographic_titles": [{"bibliographic_title": "Science reports of Niigata University. (Geology)", "bibliographic_titleLang": "en"}]}]}, "item_7_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "A new Thermo Scientific^\u003cTM\u003e MAT-253 isotope ratio mass spectrometer was installed at Department of Geology, Niigata University, Japan under the MEXT Grant-in-Aid for Scientific Research on Innovative Areas. The mass spectrometer was set up for carbon and oxygen isotope measurement of small volume CO_2 samples. A new inlet vacuum line was constructed for transferring standard gas, to inlet externally prepared CO_2 gas samples and transfer CO_2 gas prepared in the online carbonate reaction system. The line is evacuated using a turbo molecular pump and pneumatically activated valves controlled by an electrical control board. The vacuum line also includes a reference CO_2 gas (Working Standard) reservoir and a laboratory standard CO_2 gas (Machine Standard) reservoir for routine analyses, as well as SF_6 reference gas reservoirs. The preparation line can hold high vacuum conditions without appreciable leaks for several hours, required for the completion of a single session of sample measurements. Long-term laboratory standard measurement results are reported here, which shows an average of δ^\u003c13\u003eC_\u003c(V-PDB)\u003e value of ‒29.796 ± 0.041‰ and δ^\u003c18\u003eO_\u003c(V-SMOW)\u003e value of 3.971 ± 0.062‰ (n = 44; 1σ). During a period of one year of analysis, a drift of 0.04‰ for both carbon and oxygen is observed for the reference CO_2 gas. NIST standards (NBS-20 limestone and NBS-21 graphite) and a laboratory diamond standard were analyzed to characterize the minimum volume of sample required to obtain carbon and oxygen isotopic composition with accuracy and precision \u003c0.1‰. We also report here the routine analytical procedure for carbonate samples (calcite/aragonite and dolomite/siderite/magnesite) and elemental carbon (graphite and diamond).", "subitem_description_language": "en", "subitem_description_type": "Abstract"}]}, "item_7_publisher_7": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "Department of Geology, Faculty of Science, Niigata University", "subitem_publisher_language": "en"}]}, "item_7_source_id_11": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AA11436808", "subitem_source_identifier_type": "NCID"}]}, "item_7_source_id_9": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "1349-1237", "subitem_source_identifier_type": "PISSN"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "Satish-Kumar, Madhusoodhan", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Kiran, Sasidharan", "creatorNameLang": "en"}]}, {"creatorNames": [{"creatorName": "Abe, Miyako", "creatorNameLang": "en"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_access", "date": [{"dateType": "Available", "dateValue": "2022-01-21"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "36_21-42.pdf", "filesize": [{"value": "6.3 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 6300000.0, "url": {"objectType": "fulltext", "url": "https://niigata-u.repo.nii.ac.jp/record/2000226/files/36_21-42.pdf"}, "version_id": "ab7f4495-e2c3-4d30-bf3b-dc050e1589a5"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "carbon and oxygen isotopes", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "MAT-253 inlet system", "subitem_subject_language": "en", "subitem_subject_scheme": "Other"}, {"subitem_subject": "NIST standard measurements", "subitem_subject_language": "en", "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": "departmental bulletin paper", "resourceuri": "http://purl.org/coar/resource_type/c_6501"}]}, "item_title": "A new inlet system for microscale carbon and oxygen stable isotope analysis using dual inlet isotope ratio mass spectrometer at Niigata University, Japan", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "A new inlet system for microscale carbon and oxygen stable isotope analysis using dual inlet isotope ratio mass spectrometer at Niigata University, Japan", "subitem_title_language": "en"}]}, "item_type_id": "7", "owner": "4", "path": ["456", "1642746629845"], "permalink_uri": "http://hdl.handle.net/10191/0002000226", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2022-01-21"}, "publish_date": "2022-01-21", "publish_status": "0", "recid": "2000226", "relation": {}, "relation_version_is_last": true, "title": ["A new inlet system for microscale carbon and oxygen stable isotope analysis using dual inlet isotope ratio mass spectrometer at Niigata University, Japan"], "weko_shared_id": -1}
A new inlet system for microscale carbon and oxygen stable isotope analysis using dual inlet isotope ratio mass spectrometer at Niigata University, Japan
http://hdl.handle.net/10191/0002000226
http://hdl.handle.net/10191/0002000226