Liquid Scintillation Counter Cocktail Decomposition in Supercritical Water
Using supercritical water oxidation, a liquid scintillation counter cocktail used for the analysis of radionuclides was decomposed quickly and completely to water and carbon dioxide. The decomposition yield of the liquid scintillation counter cocktail increased with the reaction time, temperature, a...
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| Veröffentlicht in: | Journal of nuclear science and technology 2007-08, Vol.44 (8), p.1089-1094 |
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| container_end_page | 1094 |
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| container_issue | 8 |
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| container_title | Journal of nuclear science and technology |
| container_volume | 44 |
| creator | AKAI, Yoshie OOMURA, Hisao YAMADA, Kazuya TAKADA, Takao |
| description | Using supercritical water oxidation, a liquid scintillation counter cocktail used for the analysis of radionuclides was decomposed quickly and completely to water and carbon dioxide. The decomposition yield of the liquid scintillation counter cocktail increased with the reaction time, temperature, and pressure. More than 99.96% of the liquid scintillation counter cocktail decomposed with hydrogen peroxide at 773 K and 30 MPa for 3.8 min of reaction time. The liquid scintillation counter cocktail decomposed through two main reaction pathways: One had a rate-controlling intermediate whose decomposition rate was very slow and the other did not have stable intermediates. The decomposition of the rate-controlling intermediate was a significant factor in the complete decomposition of the cocktail although it did not dominate the entire decomposition process. A simple kinetic model that estimates the decomposition yield of the liquid scintillation counter cocktail was developed. |
| doi_str_mv | 10.3327/jnst.44.1089 |
| format | Article |
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The decomposition yield of the liquid scintillation counter cocktail increased with the reaction time, temperature, and pressure. More than 99.96% of the liquid scintillation counter cocktail decomposed with hydrogen peroxide at 773 K and 30 MPa for 3.8 min of reaction time. The liquid scintillation counter cocktail decomposed through two main reaction pathways: One had a rate-controlling intermediate whose decomposition rate was very slow and the other did not have stable intermediates. The decomposition of the rate-controlling intermediate was a significant factor in the complete decomposition of the cocktail although it did not dominate the entire decomposition process. A simple kinetic model that estimates the decomposition yield of the liquid scintillation counter cocktail was developed.</description><identifier>ISSN: 0022-3131</identifier><identifier>EISSN: 1881-1248</identifier><identifier>DOI: 10.3327/jnst.44.1089</identifier><language>eng</language><publisher>Tokyo: Taylor & Francis Ltd</publisher><subject>Carbon dioxide ; Decomposition ; Decomposition reactions ; Hydrogen peroxide ; Liquids ; Reaction time ; Scintillation counters ; Supercritical water oxidation</subject><ispartof>Journal of nuclear science and technology, 2007-08, Vol.44 (8), p.1089-1094</ispartof><rights>Copyright Japan Science and Technology Agency 2007</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><link.rule.ids>314,780,784,27924,27925</link.rule.ids></links><search><creatorcontrib>AKAI, Yoshie</creatorcontrib><creatorcontrib>OOMURA, Hisao</creatorcontrib><creatorcontrib>YAMADA, Kazuya</creatorcontrib><creatorcontrib>TAKADA, Takao</creatorcontrib><title>Liquid Scintillation Counter Cocktail Decomposition in Supercritical Water</title><title>Journal of nuclear science and technology</title><description>Using supercritical water oxidation, a liquid scintillation counter cocktail used for the analysis of radionuclides was decomposed quickly and completely to water and carbon dioxide. The decomposition yield of the liquid scintillation counter cocktail increased with the reaction time, temperature, and pressure. More than 99.96% of the liquid scintillation counter cocktail decomposed with hydrogen peroxide at 773 K and 30 MPa for 3.8 min of reaction time. The liquid scintillation counter cocktail decomposed through two main reaction pathways: One had a rate-controlling intermediate whose decomposition rate was very slow and the other did not have stable intermediates. The decomposition of the rate-controlling intermediate was a significant factor in the complete decomposition of the cocktail although it did not dominate the entire decomposition process. A simple kinetic model that estimates the decomposition yield of the liquid scintillation counter cocktail was developed.</description><subject>Carbon dioxide</subject><subject>Decomposition</subject><subject>Decomposition reactions</subject><subject>Hydrogen peroxide</subject><subject>Liquids</subject><subject>Reaction time</subject><subject>Scintillation counters</subject><subject>Supercritical water oxidation</subject><issn>0022-3131</issn><issn>1881-1248</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2007</creationdate><recordtype>article</recordtype><recordid>eNpdjktLAzEUhYMoOFZ3_oABF66mJjePuV1KfVNw0YLLkskkkjpN2knm_xvUlavD4X6c-xFyzeicc2jvdiHluRBzRnFxQiqGyBoGAk9JRSlAwxln5-QipV2pSiisyNvKHyff12vjQ_bDoLOPoV7GKWQ7ljRfWfuhfrAm7g8x-Z-zD_V6OtjRjKUbPdQfutCX5MzpIdmrv5yRzdPjZvnSrN6fX5f3q-YTQOTG9Z10yGknNe8dUi16KYBia3gHQiiAooYcnbC2R7VwzKkWGEAnEa3mM3L7O3sY43GyKW_3Phlb1IONU9qiYlIpKmQhb_6RuziNobhtWfkIwJnk_Bt7llwR</recordid><startdate>20070801</startdate><enddate>20070801</enddate><creator>AKAI, Yoshie</creator><creator>OOMURA, Hisao</creator><creator>YAMADA, Kazuya</creator><creator>TAKADA, Takao</creator><general>Taylor & Francis Ltd</general><scope>7SP</scope><scope>7TB</scope><scope>8FD</scope><scope>FR3</scope><scope>KR7</scope><scope>L7M</scope></search><sort><creationdate>20070801</creationdate><title>Liquid Scintillation Counter Cocktail Decomposition in Supercritical Water</title><author>AKAI, Yoshie ; OOMURA, Hisao ; YAMADA, Kazuya ; TAKADA, Takao</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-g224t-fdb5f830b5a3df80a4d542087c3b244622264838f4eed869f1f672122b588ea3</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2007</creationdate><topic>Carbon dioxide</topic><topic>Decomposition</topic><topic>Decomposition reactions</topic><topic>Hydrogen peroxide</topic><topic>Liquids</topic><topic>Reaction time</topic><topic>Scintillation counters</topic><topic>Supercritical water oxidation</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>AKAI, Yoshie</creatorcontrib><creatorcontrib>OOMURA, Hisao</creatorcontrib><creatorcontrib>YAMADA, Kazuya</creatorcontrib><creatorcontrib>TAKADA, Takao</creatorcontrib><collection>Electronics & Communications Abstracts</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Technology Research Database</collection><collection>Engineering Research Database</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><jtitle>Journal of nuclear science and technology</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>AKAI, Yoshie</au><au>OOMURA, Hisao</au><au>YAMADA, Kazuya</au><au>TAKADA, Takao</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Liquid Scintillation Counter Cocktail Decomposition in Supercritical Water</atitle><jtitle>Journal of nuclear science and technology</jtitle><date>2007-08-01</date><risdate>2007</risdate><volume>44</volume><issue>8</issue><spage>1089</spage><epage>1094</epage><pages>1089-1094</pages><issn>0022-3131</issn><eissn>1881-1248</eissn><abstract>Using supercritical water oxidation, a liquid scintillation counter cocktail used for the analysis of radionuclides was decomposed quickly and completely to water and carbon dioxide. 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| ispartof | Journal of nuclear science and technology, 2007-08, Vol.44 (8), p.1089-1094 |
| issn | 0022-3131 1881-1248 |
| language | eng |
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| source | EZB-FREE-00999 freely available EZB journals; Alma/SFX Local Collection; Free Full-Text Journals in Chemistry |
| subjects | Carbon dioxide Decomposition Decomposition reactions Hydrogen peroxide Liquids Reaction time Scintillation counters Supercritical water oxidation |
| title | Liquid Scintillation Counter Cocktail Decomposition in Supercritical Water |
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