{"_buckets": {"deposit": "fa675417-bc09-40a7-89de-4812fc215fb6"}, "_deposit": {"id": "11477", "owners": [], "pid": {"revision_id": 0, "type": "depid", "value": "11477"}, "status": "published"}, "_oai": {"id": "oai:nagoya.repo.nii.ac.jp:00011477"}, "item_9_alternative_title_19": {"attribute_name": "\u305d\u306e\u4ed6\u306e\u8a00\u8a9e\u306e\u30bf\u30a4\u30c8\u30eb", "attribute_value_mlt": [{"subitem_alternative_title": "An attempt on accurate radiocarbon and carbon isotope measurements of fossil bone"}]}, "item_9_biblio_info_6": {"attribute_name": "\u66f8\u8a8c\u60c5\u5831", "attribute_value_mlt": [{"bibliographicIssueDates": {"bibliographicIssueDate": "1997-03", "bibliographicIssueDateType": "Issued"}, "bibliographicPageEnd": "253", "bibliographicPageStart": "247", "bibliographicVolumeNumber": "8", "bibliographic_titles": [{"bibliographic_title": "\u540d\u53e4\u5c4b\u5927\u5b66\u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790\u8a08\u696d\u7e3e\u5831\u544a\u66f8"}]}]}, "item_9_description_4": {"attribute_name": "\u6284\u9332", "attribute_value_mlt": [{"subitem_description": "Accurate radiocarbon (^\u003c14\u003eC) and carbon isotope measurements on fossil bones require that all exogenous carbon be removed. The remove the foreign organic carbon and obtain reliable ^\u003c14\u003eC ages from bones, XAD-2 chromatography method was examined. The fossil bones used in the experiment were bone fragments collected from the Awazu submarine archeological site. The bone samples were demineralized with 4\u2103 0.8N HCl and the acid-insoluble residue was concentrated by centrifugation and lyophilized. The demineralized bone powder was hydrolysed with 6N HCl at 110\u2103. Solids were removed by centrifugation before the filtered hydrolysate was passed through the XAD-2 resin to remove fulvic and humic acids. \u03b4^\u003c13\u003eC values and ^\u003c14\u003eC ages for three fractions of decalcified bone powder, XAD-treated hydrolysate, and fulvic and humic acids in demineralization-hydrolysis-XAD treatment procedure. XAD-purified hydrolysates have more positive \u03b4^\u003c13\u003eC values and older ^\u003c14\u003eC ages than gelatin collagen extracted by conventional method. The \u03b4^\u003c13\u003eC values in fulvic and humic phases are significantly more negative than collagen fractions. Conventional collagen extraction method is sufficient for ^\u003c14\u003eC dating on well-preserved bones but insufficient on poorly-preserved bones, because the method does not totally remove exogenous organic carbon. XAD-2 resin is recommended for accurate ^\u003c14\u003eC and carbon isotope measurements.", "subitem_description_type": "Abstract"}]}, "item_9_description_5": {"attribute_name": "\u5185\u5bb9\u8a18\u8ff0", "attribute_value_mlt": [{"subitem_description": "\u30bf\u30f3\u30c7\u30c8\u30ed\u30f3\u52a0\u901f\u5668\u8cea\u91cf\u5206\u6790\u8a08\u696d\u7e3e\u5831\u544a Summaries of Researches Using AMS 1996 (\u5e73\u62108)\u5e74\u5ea6", "subitem_description_type": "Other"}]}, "item_9_identifier_registration": {"attribute_name": "ID\u767b\u9332", "attribute_value_mlt": [{"subitem_identifier_reg_text": "10.18999/sumrua.8.247", "subitem_identifier_reg_type": "JaLC"}]}, "item_9_publisher_32": {"attribute_name": "\u51fa\u7248\u8005", "attribute_value_mlt": [{"subitem_publisher": "\u540d\u53e4\u5c4b\u5927\u5b66\u5e74\u4ee3\u6e2c\u5b9a\u8cc7\u6599\u7814\u7a76\u30bb\u30f3\u30bf\u30fc \u5929\u7136\u653e\u5c04\u6027\u5143\u7d20\u6e2c\u5b9a\u5c0f\u59d4\u54e1\u4f1a"}]}, "item_9_relation_43": 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