{"_buckets": {"deposit": "f8a2cb43-cc94-47c1-8023-7797af12e156"}, "_deposit": {"id": "19955", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "19955"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00019955", "sets": ["1735"]}, "author_link": ["84166", "84167", "84168", "84169", "84170", "84171"], "item_1615768549627": {"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_9_alternative_title_19": {"attribute_name": "その他のタイトル", "attribute_value_mlt": [{"subitem_alternative_title": "Sample preparation for radiocarbon dating of charred materials : the decontamination process of ABOx-SC method", "subitem_alternative_title_language": "en"}]}, "item_9_biblio_info_6": {"attribute_name": "書誌情報", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "2015-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "66", "bibliographicPageStart": "61", "bibliographicVolumeNumber": "26", "bibliographic_titles": [{"bibliographic_title": "名古屋大学加速器質量分析計業績報告書", "bibliographic_titleLang": "ja"}]}]}, "item_9_description_4": {"attribute_name": "抄録", "attribute_value_mlt": [{"subitem_description": "Charred material is widely used for radiocarbon (14C) dating in archaeological and palaeoenvironmental studies. Reliable 14C dating requires appropriate chemical treatment to remove post-deposition contamination, especially humic acid, from the charred material. This study compared two pre-treatment methods: Acid-Base-Acid (ABA) treatment and Acid-Base-Oxidation with Stepped-Combustion (ABOx-SC) treatment, in order to examine the effectiveness of decontamination. The ABA-treated environmental charcoal yielded younger 14C dates than the ABOx-treated samples, probably owing to the effects of remaining organic contaminants bound to the edges of the charred material\u0027s molecular structures, which were produced by the original pyrolysis. Oxidation treatment can preferentially remove humic acid contaminants, which remained after NaOH treatment. Therefore, the ABOx treatment can more effectively and efficiently remove exogenous humic acid than the ABA treatment. Furthermore, stepped combustion procedure can remove remained contaminants after chemical treatment, such as exogenous organic component and atmospheric CO2 absorbed during samples treatment. Therefore, the ABOx-SC treatment of the charcoal samples can lead a most reliable 14C age for the \"old\" (especially \u003e30 ka) samples, which are susceptible to contaminants.", "subitem_description_language": "en", "subitem_description_type": "Abstract"}, {"subitem_description": "炭化物は14C年代測定の有力な試料であり、考古学ならびに古環境の分野で広く利用されている。信頼性のある14C年代を与えるには、炭化物が埋没中に取り込んだ外来炭素成分(特に腐植酸)を適切な試料処理で除く必要がある。本稿では、炭化物の試料処理の違いによる14C年代の違いについて報告する。同一埋没炭化樹木試料に対しABA法、ABOx法の化学処理を行った結果、ABA法では外来腐植酸が試料中に残存していること示唆された。これは炭化物分子に化学的に結合した形で試料中に存在する腐植酸はNaOH処理では除けないことによると考えられる。一方、二クロム酸カリウム溶液による処理を加えたABOx法では、NaOH処理後に残存した腐植酸を優先的に酸化分解するため、効果的かつ効率的に腐植酸を除去できると考えられる。段階加熱処理(SC処理)では、化学処理後に残存した外来有機成分ならびに一連の処理過程で取り込んだ可能性がある現代大気中CO2による汚染を除去する方法として有効と考えられる。したがって、僅かな外来炭素の汚染の影響を大きく受ける古い試料(特に3万年前以前の試料)において、ABOx法に段階加熱処理を加えたABOx-SC法は、外来炭素成分の除去法として最も有効であると言える。", "subitem_description_language": "ja", "subitem_description_type": "Abstract"}]}, "item_9_description_5": {"attribute_name": "内容記述", "attribute_value_mlt": [{"subitem_description": "名古屋大学年代測定総合研究センターシンポジウム報告", "subitem_description_language": "ja", "subitem_description_type": "Other"}]}, "item_9_identifier_registration": {"attribute_name": "ID登録", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.18999/sumrua.26.61", "subitem_identifier_reg_type": "JaLC"}]}, "item_9_publisher_32": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "名古屋大学年代測定資料研究センター", "subitem_publisher_language": "ja"}]}, "item_9_select_15": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_select_item": "publisher"}]}, "item_access_right": {"attribute_name": "アクセス権", "attribute_value_mlt": [{"subitem_access_right": "open access", "subitem_access_right_uri": "http://purl.org/coar/access_right/c_abf2"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "冨山, 慎二", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "84166", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "南, 雅代", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "84167", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "中村, 俊夫", "creatorNameLang": "ja"}], "nameIdentifiers": [{"nameIdentifier": "84168", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Tomiyama, Shinji", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "84169", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Minami, Masayo", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "84170", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "Nakamura, Toshio", "creatorNameLang": "en"}], "nameIdentifiers": [{"nameIdentifier": "84171", "nameIdentifierScheme": "WEKO"}]}]}, "item_files": {"attribute_name": "ファイル情報", "attribute_type": "file", "attribute_value_mlt": [{"accessrole": "open_date", "date": [{"dateType": "Available", "dateValue": "2018-02-21"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "tomiyama2014.pdf", "filesize": [{"value": "7.0 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_note", "mimetype": "application/pdf", "size": 7000000.0, "url": {"label": "tomiyama2014.pdf", "objectType": "fulltext", "url": "https://nagoya.repo.nii.ac.jp/record/19955/files/tomiyama2014.pdf"}, "version_id": "86b6d003-edb2-49e1-8ea6-33570d4316c1"}]}, "item_keyword": {"attribute_name": "キーワード", "attribute_value_mlt": [{"subitem_subject": "Radiocarbon", "subitem_subject_scheme": "Other"}, {"subitem_subject": "charcoal", "subitem_subject_scheme": "Other"}, {"subitem_subject": "pre-treatment", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ABA", "subitem_subject_scheme": "Other"}, {"subitem_subject": "ABOx-SC", "subitem_subject_scheme": "Other"}]}, "item_language": {"attribute_name": "言語", "attribute_value_mlt": [{"subitem_language": "jpn"}]}, "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": "炭化物の14C年代測定のための試料処理 : ABOx-SC法における外来炭素の除去過程について", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "炭化物の14C年代測定のための試料処理 : ABOx-SC法における外来炭素の除去過程について", "subitem_title_language": "ja"}]}, "item_type_id": "9", "owner": "1", "path": ["1735"], "permalink_uri": "https://doi.org/10.18999/sumrua.26.61", "pubdate": {"attribute_name": "PubDate", "attribute_value": "2015-05-18"}, "publish_date": "2015-05-18", "publish_status": "0", "recid": "19955", "relation": {}, "relation_version_is_last": true, "title": ["炭化物の14C年代測定のための試料処理 : ABOx-SC法における外来炭素の除去過程について"], "weko_shared_id": -1}