{"created":"2023-05-15T15:31:29.301072+00:00","id":4198,"links":{},"metadata":{"_buckets":{"deposit":"6c62d4e5-9728-451d-aaf7-53c90f33c2b1"},"_deposit":{"created_by":3,"id":"4198","owners":[3],"pid":{"revision_id":0,"type":"depid","value":"4198"},"status":"published"},"_oai":{"id":"oai:barrel.repo.nii.ac.jp:00004198","sets":[]},"author_link":["9065","9064","9063","9062"],"item_1_biblio_info_5":{"attribute_name":"書誌情報","attribute_value_mlt":[{"bibliographicIssueDates":{"bibliographicIssueDate":"1974","bibliographicIssueDateType":"Issued"},"bibliographicIssueNumber":"10","bibliographicPageEnd":"1160","bibliographicPageStart":"1157","bibliographicVolumeNumber":"23","bibliographic_titles":[{"bibliographic_title":"分析化学"}]}]},"item_1_description_18":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"バナジウム(IV)は,塩素酸イオンによるヨウ化物イオンのヨウ素への,酸性溶液中での酸化反応を触媒する.その反応速度式を積分すると,log[I<SUP>-</SUP>]は時間<I>t</I>とともに直線的に変化するので,電位変化速度を知ることにより,触媒バナジウム(IV)の定量が可能である.検量線を作成するにあたって,ヨウ化カリウム,硫酸および塩素酸カリウムの最適濃度の決定には, 実験計画法を適用した.本法によれば,0.55〜2.8μ<I>M</I> のバナジウム(IV)の定量が可能であり,比色法とほぼ同じ感度を示した.また,妨害イオンについても検討を行なった. The oxidation of iodide ion to iodine by chlorate ion takes place in an acidic environment according to<BR>ClO<SUB>3</SUB><SUP>-</SUP>+6I<SUP>-</SUP>+6H<SUP>+</SUP>=Cl<SUP>-</SUP>+3I<SUB>2</SUB>+3H<SUB>2</SUB>O<BR>and is catalysed by V(IV). The reaction rate is determined by measuring the iodide ion concentration, which can easily be determined by the potential of iodide-selective electrode. Integration of the kinetic eqn. yields log[I<SUP>-</SUP>]=-<I>K</I>·<I>C</I><SUB>k</SUB>[ClO<SUB>3</SUB><SUP>-</SUP>][H<SUP>+</SUP>]2<I>t</I>+log[I<SUP>-</SUP>]<BR>where <I>K</I> is the rate constant, <I>C</I><SUB>k</SUB> the concentration of V(IV), <I>t</I> time, and [I<SUP>-</SUP>] the initial concentration. The potential change of the iodide-selective electrode is recorded, from which the time required for the potential change of 40 mV is estimated at the linear part of potential-time curve. The rate is proportional to the concentration of catalyst and so it is possible to determine a small amount of V(IV).<BR>The most suitable concentrations of KI, H<SUB>2</SUB>SO<SUB>4</SUB> and KClO<SUB>3</SUB> were decided by the method of experimental design of three-sided classification. The variance ratio concerning the concentration of KI, as well as KClO<SUB>3</SUB>, is very high, <I>i.e</I>. the rate of reaction depends significantly on these concentrations. It is not found, however, that there is a strong interaction between the KI, the H<SUB>2</SUB>SO<SUB>4</SUB> and the KClO<SUB>3</SUB> concentration. The most suitable concentrations of KI, H<SUB>2</SUB>SO<SUB>4</SUB> and KClO<SUB>3</SUB> are 2 μ<I>M</I>, 1 m<I>M</I> and 0.3 <I>M</I>, respectively. A calibration curve with a good linearity was obtained and by this method it is possible to determine V(IV) in the concentration range from 0.55 to 2.8 μ mol dm<SUP>-3</SUP> in the reaction solution. This sensitivity is almost the same as that of spectrophotometric method developed by Yatsimirskii. Fe(III) shows a strong interference.","subitem_description_type":"Abstract"}]},"item_1_full_name_3":{"attribute_name":"著者別名","attribute_value_mlt":[{"nameIdentifiers":[{"nameIdentifier":"9064","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kataoka, Masamitsu"}]},{"nameIdentifiers":[{"nameIdentifier":"9065","nameIdentifierScheme":"WEKO"}],"names":[{"name":"Kambara, Tomihito"}]}]},"item_1_publisher_6":{"attribute_name":"出版者","attribute_value_mlt":[{"subitem_publisher":"日本分析化学会"}]},"item_1_source_id_11":{"attribute_name":"書誌ID（NCID）","attribute_value_mlt":[{"subitem_source_identifier":"AN00222633","subitem_source_identifier_type":"NCID"}]},"item_1_subject_16":{"attribute_name":"日本十進分類法","attribute_value_mlt":[{"subitem_subject":"433","subitem_subject_scheme":"NDC"}]},"item_1_subject_17":{"attribute_name":"NIIサブジェクト","attribute_value_mlt":[{"subitem_subject":"化学","subitem_subject_scheme":"Other"}]},"item_1_version_type_15":{"attribute_name":"テキストバージョン","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":"片岡, 正光"}],"nameIdentifiers":[{"nameIdentifier":"9062","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"神原, 冨民"}],"nameIdentifiers":[{"nameIdentifier":"9063","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":"2016-01-26"}],"displaytype":"detail","filename":"分析化学23(10)_1157-1160.pdf","filesize":[{"value":"269.8 kB"}],"format":"application/pdf","licensetype":"license_note","mimetype":"application/pdf","url":{"label":"分析化学23(10)_1157-1160.pdf","url":"https://barrel.repo.nii.ac.jp/record/4198/files/分析化学23(10)_1157-1160.pdf"},"version_id":"01d83185-e816-441a-9a4e-aa189021585a"}]},"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":"journal article","resourceuri":"http://purl.org/coar/resource_type/c_6501"}]},"item_title":"ヨウ化物イオン電極によるバナジウム(IV)の接触分析","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"ヨウ化物イオン電極によるバナジウム(IV)の接触分析"},{"subitem_title":"Catalytic analysis of vanadium(IV) by means of an iodide-selective electrode","subitem_title_language":"en"}]},"item_type_id":"1","owner":"3","path":["4"],"pubdate":{"attribute_name":"公開日","attribute_value":"2012-03-30"},"publish_date":"2012-03-30","publish_status":"0","recid":"4198","relation_version_is_last":true,"title":["ヨウ化物イオン電極によるバナジウム(IV)の接触分析"],"weko_creator_id":"3","weko_shared_id":3},"updated":"2023-07-20T07:55:42.704205+00:00"}