{"created":"2023-05-15T14:43:44.690356+00:00","id":59861,"links":{},"metadata":{"_buckets":{"deposit":"959bce46-47df-457b-9fd6-6039a18eb5f7"},"_deposit":{"created_by":1,"id":"59861","owners":[1],"pid":{"revision_id":0,"type":"depid","value":"59861"},"status":"published"},"_oai":{"id":"oai:repo.qst.go.jp:00059861","sets":["10:29"]},"author_link":["595644","595643"],"item_10005_date_7":{"attribute_name":"発表年月日","attribute_value_mlt":[{"subitem_date_issued_datetime":"2003-07-02","subitem_date_issued_type":"Issued"}]},"item_10005_description_5":{"attribute_name":"抄録","attribute_value_mlt":[{"subitem_description":"     Anthropogenic processes (mining, milling, industries, and \nautomobiles) including the modern trends in the agriculture contaminated the soil \nand water affecting the biogeochemical cycling of many elements. This resulted in \nthe degradation of soil-water system causing damage to the environment and the \necosystem. In addition to this, since depleted uranium (DU) could also have been \nused in the Balkan conflict 1999, there has been a concern about the possible \nconsequences of its use for the people and for the environment of this region. \nTherefore, management of fresh water resources is utmost important in the 21st \ncentury for the sustainable development. In this context, isotope geochemistry is a \nvery useful tracer tool not only to establish the origin of pollutants and their \nrelative contributions from various sources (natural and anthropogenic) but also \nthe effect on the soil-water system. Isotope studies can be carried out using \nthermal ionization mass spectrometry (TIMS) and inductively coupled plasma \nmass spectrometry (ICPMS), and results of such studies are very useful and \nprecise in delineating the source(s) of contaminants, tracing the flow-path of \nground water and aid us in planning better management of freshwater resources.\n     We have collected a few well water samples, ground water samples and soil \nsamples in south Serbia region. The sample preparation procedures are critical \nanalytical steps and influence the quality of the final results. The \nrepresentativeness of the samples examined, a digestion procedure which ensures \nthe quantitative conversion of transuranium elements and other trace elements into \na suitable complex and elimination of matrix effects are essential while measuring \nuranium isotopes, especially in the analysis of environmental materials. Special \nprocedures for the purification of reagents and reaction vessels are required in \norder to reduce the blank below the limits of detection of the most sensitive \ndetection techniques, such as ICP-MS or TIMS. \nMethod. The soil samples were decomposed using microwave digestion with a \nmixture of HNO3, HF and HClO4. Water samples were open dried with HNO3. \nDetermination of transuranium elements as well as other trace elements were \nperformed using an ICP-MS. Uranium was isolated from soil and water samples \nby chemical separation procedure based on the use of anion-exchange resin and \nUTEVA extraction chromatography. The isotope ratios were measured with a \nmagnetic sector, thermal ionization mass spectrometer equipped with a multiple \nion collector system for simultaneous detection of the ion currents.\n     The results and distribution of transuranium elements in water and soil \nsamples will be presented in the lecture. TIMS shows the highest precision and \naccuracy and capable of detecting depleted uranium in soil samples affected due \nto conflicts. ","subitem_description_type":"Abstract"}]},"item_10005_description_6":{"attribute_name":"会議概要（会議名, 開催地, 会期, 主催者等）","attribute_value_mlt":[{"subitem_description":"Promotion of New Electrochemical Etching Facility and Its Applications to Natural Radiation Studies in Western Balkan Countries ","subitem_description_type":"Other"}]},"item_access_right":{"attribute_name":"アクセス権","attribute_value_mlt":[{"subitem_access_right":"metadata only access","subitem_access_right_uri":"http://purl.org/coar/access_right/c_14cb"}]},"item_creator":{"attribute_name":"著者","attribute_type":"creator","attribute_value_mlt":[{"creatorNames":[{"creatorName":"Sarata, Kumar Sahoo"}],"nameIdentifiers":[{"nameIdentifier":"595643","nameIdentifierScheme":"WEKO"}]},{"creatorNames":[{"creatorName":"サフー サラタ クマール","creatorNameLang":"en"}],"nameIdentifiers":[{"nameIdentifier":"595644","nameIdentifierScheme":"WEKO"}]}]},"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":"conference object","resourceuri":"http://purl.org/coar/resource_type/c_c94f"}]},"item_title":"Distribution of transuranium elements and other trace elements in environmental samples of South Serbia","item_titles":{"attribute_name":"タイトル","attribute_value_mlt":[{"subitem_title":"Distribution of transuranium elements and other trace elements in environmental samples of South Serbia"}]},"item_type_id":"10005","owner":"1","path":["29"],"pubdate":{"attribute_name":"公開日","attribute_value":"2003-07-10"},"publish_date":"2003-07-10","publish_status":"0","recid":"59861","relation_version_is_last":true,"title":["Distribution of transuranium elements and other trace elements in environmental samples of South Serbia"],"weko_creator_id":"1","weko_shared_id":-1},"updated":"2023-05-15T22:00:12.229428+00:00"}