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The present paper reports successively the identification of 19 different 4-desmethyl-sterols which are classified into 7 groups, including 5β-stanols △5, 24_, △7_, △5, 24(28)_ and △24(28)_ sterols. The mass spectra data of these sterol trimethylsilyl ether derivatives are presented in Table 2 and Fig.s 8-11. 5β-Stanols have shorter GC retention times (RRT) than the corresponding 5a-stanols. These derivatives give intense peaks of b[M-90]+ and have molecular ions [M]+ of low density. 3β-Epimer has a shorter RRT and a stronger peak at m/z108 than 3a-epimer. △5,24-Sterols present strong ions d , b, r and s at m/z372, 366, 343 and 253 respectively. They also have ions n[M-129] m/z129 which are intense in the case of △5-sterols. △7-Sterols are characterized, as having longer RRT than the corresponding △5-sterols, and by the base peaks at em/z255, and by the intense molecular ions [M]+. Thepresence of a △24(28) double bond in the sterol side chain brings about intense fragment ions p [M-C23~C26(23)-H]+ and q [M-C23~C26(23)-H-ROH], etc. corresponding to the cleavage of the 23-24 double bond due to the Mclafferty-type rearrangement. In the case of △5,24(28)-sterols, the characteristic ions p at m/z386 and q at m/z296 are accompanied by ions n[M-129]+, m/z145, 129 all of which are typical of △5-sterols. △24(28)-Sterols have characteristic ions p at m/z388 and g at m/z215 which are strong in the 5a-saturated sterols.", "subitem_description_type": "Abstract"}]}, "item_3_description_64": {"attribute_name": "引用", "attribute_value_mlt": [{"subitem_description": "長崎大学教育学部自然科学研究報告. vol.45, p.27-47; 1991", "subitem_description_type": "Other"}]}, "item_3_full_name_3": {"attribute_name": "著者別名", "attribute_value_mlt": [{"nameIdentifiers": [{"nameIdentifier": "31279", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Kondo, Hiroshi"}]}, {"nameIdentifiers": [{"nameIdentifier": "31280", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Ishiwatari, Ryoshi"}]}, {"nameIdentifiers": [{"nameIdentifier": "31281", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Yamamoto, Shuichi"}]}, {"nameIdentifiers": [{"nameIdentifier": "31282", "nameIdentifierScheme": "WEKO"}], "names": [{"name": "Uemura, Hitoshi"}]}]}, "item_3_publisher_33": {"attribute_name": "出版者", "attribute_value_mlt": [{"subitem_publisher": "長崎大学教育学部"}]}, "item_3_relation_29": {"attribute_name": "論文ID(NAID)", "attribute_value_mlt": [{"subitem_relation_type": "isIdenticalTo", "subitem_relation_type_id": {"subitem_relation_type_id_text": "40002768845", "subitem_relation_type_select": "NAID"}}]}, "item_3_source_id_10": {"attribute_name": "書誌レコードID", "attribute_value_mlt": [{"subitem_source_identifier": "AN00178280", "subitem_source_identifier_type": "NCID"}]}, "item_3_source_id_7": {"attribute_name": "ISSN", "attribute_value_mlt": [{"subitem_source_identifier": "0386443X", "subitem_source_identifier_type": "ISSN"}]}, "item_3_version_type_16": {"attribute_name": "著者版フラグ", "attribute_value_mlt": [{"subitem_version_resource": "http://purl.org/coar/version/c_970fb48d4fbd8a85", "subitem_version_type": "VoR"}]}, "item_creator": {"attribute_name": "著者", "attribute_type": "creator", "attribute_value_mlt": [{"creatorNames": [{"creatorName": "近藤, 寛"}], "nameIdentifiers": [{"nameIdentifier": "31275", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "石渡, 良志"}], "nameIdentifiers": [{"nameIdentifier": "31276", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "山本, 修一"}], "nameIdentifiers": [{"nameIdentifier": "31277", "nameIdentifierScheme": "WEKO"}]}, {"creatorNames": [{"creatorName": "上村, 仁"}], "nameIdentifiers": [{"nameIdentifier": "31278", "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": "2020-12-21"}], "displaytype": "detail", "download_preview_message": "", "file_order": 0, "filename": "kyoikuS45_027.pdf", "filesize": [{"value": "1.4 MB"}], "format": "application/pdf", "future_date_message": "", "is_thumbnail": false, "licensetype": "license_free", "mimetype": "application/pdf", "size": 1400000.0, "url": {"label": "kyoikuS45_027.pdf", "url": "https://nagasaki-u.repo.nii.ac.jp/record/7451/files/kyoikuS45_027.pdf"}, "version_id": "32310d19-dc8e-4163-bfc8-5aa43f327257"}]}, "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": "現世海洋堆積物中のステロ-ル-2 : 4-デスメチルステロールのGC/MSによる解析", "item_titles": {"attribute_name": "タイトル", "attribute_value_mlt": [{"subitem_title": "現世海洋堆積物中のステロ-ル-2 : 4-デスメチルステロールのGC/MSによる解析"}]}, "item_type_id": "3", "owner": "2", "path": ["537"], "permalink_uri": "http://hdl.handle.net/10069/32313", "pubdate": {"attribute_name": "公開日", "attribute_value": "2013-06-17"}, "publish_date": "2013-06-17", "publish_status": "0", "recid": "7451", "relation": {}, "relation_version_is_last": true, "title": ["現世海洋堆積物中のステロ-ル-2 : 4-デスメチルステロールのGC/MSによる解析"], "weko_shared_id": -1}
現世海洋堆積物中のステロ-ル-2 : 4-デスメチルステロールのGC/MSによる解析
http://hdl.handle.net/10069/32313
http://hdl.handle.net/10069/32313aa72e612-deee-4731-9ac2-eed3af873ece
名前 / ファイル | ライセンス | アクション |
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kyoikuS45_027.pdf (1.4 MB)
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Item type | 紀要論文 / Departmental Bulletin Paper(1) | |||||
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公開日 | 2013-06-17 | |||||
タイトル | ||||||
タイトル | 現世海洋堆積物中のステロ-ル-2 : 4-デスメチルステロールのGC/MSによる解析 | |||||
言語 | ||||||
言語 | jpn | |||||
資源タイプ | ||||||
資源タイプ識別子 | http://purl.org/coar/resource_type/c_6501 | |||||
資源タイプ | departmental bulletin paper | |||||
著者 |
近藤, 寛
× 近藤, 寛× 石渡, 良志× 山本, 修一× 上村, 仁 |
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著者別名 | ||||||
姓名 | Kondo, Hiroshi | |||||
著者別名 | ||||||
姓名 | Ishiwatari, Ryoshi | |||||
著者別名 | ||||||
姓名 | Yamamoto, Shuichi | |||||
著者別名 | ||||||
姓名 | Uemura, Hitoshi | |||||
その他のタイトル | ||||||
その他のタイトル | Sterols in Recent Marine Sediments II GC/MS Analysis of 4-Desmethyl-Sterols | |||||
抄録 | ||||||
内容記述タイプ | Abstract | |||||
内容記述 | In the course of a gas chromatographi-mass spectrometric (GC/MS) study of sterols from marine sediments, we previously identified the major sterols: 5a-stanols, △5_, △22_ and △5, 22_ sterols (Kondo et al., 1991). The present paper reports successively the identification of 19 different 4-desmethyl-sterols which are classified into 7 groups, including 5β-stanols △5, 24_, △7_, △5, 24(28)_ and △24(28)_ sterols. The mass spectra data of these sterol trimethylsilyl ether derivatives are presented in Table 2 and Fig.s 8-11. 5β-Stanols have shorter GC retention times (RRT) than the corresponding 5a-stanols. These derivatives give intense peaks of b[M-90]+ and have molecular ions [M]+ of low density. 3β-Epimer has a shorter RRT and a stronger peak at m/z108 than 3a-epimer. △5,24-Sterols present strong ions d , b, r and s at m/z372, 366, 343 and 253 respectively. They also have ions n[M-129] m/z129 which are intense in the case of △5-sterols. △7-Sterols are characterized, as having longer RRT than the corresponding △5-sterols, and by the base peaks at em/z255, and by the intense molecular ions [M]+. Thepresence of a △24(28) double bond in the sterol side chain brings about intense fragment ions p [M-C23~C26(23)-H]+ and q [M-C23~C26(23)-H-ROH], etc. corresponding to the cleavage of the 23-24 double bond due to the Mclafferty-type rearrangement. In the case of △5,24(28)-sterols, the characteristic ions p at m/z386 and q at m/z296 are accompanied by ions n[M-129]+, m/z145, 129 all of which are typical of △5-sterols. △24(28)-Sterols have characteristic ions p at m/z388 and g at m/z215 which are strong in the 5a-saturated sterols. | |||||
書誌情報 |
長崎大学教育学部自然科学研究報告 en : Science bulletin of the Faculty of Education, Nagasaki University 巻 45, p. 27-47, 発行日 1991-05-31 |
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ISSN | ||||||
収録物識別子タイプ | ISSN | |||||
収録物識別子 | 0386443X | |||||
書誌レコードID | ||||||
収録物識別子タイプ | NCID | |||||
収録物識別子 | AN00178280 | |||||
著者版フラグ | ||||||
出版タイプ | VoR | |||||
出版タイプResource | http://purl.org/coar/version/c_970fb48d4fbd8a85 | |||||
論文ID(NAID) | ||||||
関連タイプ | isIdenticalTo | |||||
識別子タイプ | NAID | |||||
関連識別子 | 40002768845 | |||||
出版者 | ||||||
出版者 | 長崎大学教育学部 | |||||
引用 | ||||||
内容記述タイプ | Other | |||||
内容記述 | 長崎大学教育学部自然科学研究報告. vol.45, p.27-47; 1991 |