ASTM C1614-2005 用感应耦合等离子体质谱测定法(ICP-MS)和γ射线光谱测定法测定尿中237Np,232Th,235U和238U的标准实施规程
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【英文标准名称】:StandardPracticefortheDeterminationof237Np,232Th,235Uand238UinUrinebyInductivelyCoupledPlasma-MassSpectrometry(ICP-MS)andGammaRaySpectrometry.
【原文标准名称】:用感应耦合等离子体质谱测定法(ICP-MS)和γ射线光谱测定法测定尿中237Np,232Th,235U和238U的标准实施规程
【标准号】:ASTMC1614-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C26.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:分析方法;耦合的;测定;γ;γ射线;γ射线光谱测定法;感应耦合等离子体;感应的;质谱学;物理化学分析法;等离子体;放射性同位素;铀;尿
【英文主题词】:Bioassay;urine;neptunium;thorium;uranium;mass;inductivelycoupledplasma-massspectrometry;gamma-rayspectrometry;isotoperatio;isotopedilution;extractionchromatography
【摘要】:Thispracticemaybeusedaspartofabioassayprogramforworkerspotentiallyexposedtonuclearmaterialbymeasuring237Np,232Thand235Uand238Uintheirurinesamples.ICP-MShasbeenusedtoanalyzeformanyactinidesinhigh-levelradioactivewastes(1)3,insoils(2)aswellasuraniuminurine(C1379).237Npand239PuanalysisbyICP-MSinbioassaysampleshasalsobeenreported(3).Severaldayscountingtimesarerequiredforalpha-particleanalysisof237Np,232Thand235Uand238UwhereasICP-MSrequiresonlyfourminutespersample.Alpha-particlecountingmethodsforneptuniummayalsorequiretheuseof239Puasaradiotracerfordeterminationofchemicalyield.ICP-MSsensitivitylimitsandisobaricinterferencesprecludeaccuratedeterminationof239Pu,241Amand234Uatlevelspresentintheurinesamples.234Umaybeestimatedfromthe235U:238Uratiobyinference.1.1Thispracticecoverstheseparationandpreconcentrationofneptunium-237(237Np),thorium-232(232Th),uranium-235(235U)anduranium-238(238U)fromurinefollowedbyquantitationusingICP-MS.1.2Thispracticecanbeusedtosupportroutinebioassayprograms.Theminimumdetectableconcentrations(MDC)forthismethod,takingthepreconcentrationfactorintoaccount,areapproximately1E-2Bqfor237Np(0.38ng),2E-6Bqfor232Th(0.50ng),4E-5Bqfor235U(0.50ng)and6E-6Bqfor238U(0.48ng).1.3Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C44
【国际标准分类号】:71_040_50
【页数】:5P.;A4
【正文语种】:
【原文标准名称】:用感应耦合等离子体质谱测定法(ICP-MS)和γ射线光谱测定法测定尿中237Np,232Th,235U和238U的标准实施规程
【标准号】:ASTMC1614-2005
【标准状态】:现行
【国别】:
【发布日期】:2005
【实施或试行日期】:
【发布单位】:美国材料与试验协会(US-ASTM)
【起草单位】:C26.05
【标准类型】:(Practice)
【标准水平】:()
【中文主题词】:分析方法;耦合的;测定;γ;γ射线;γ射线光谱测定法;感应耦合等离子体;感应的;质谱学;物理化学分析法;等离子体;放射性同位素;铀;尿
【英文主题词】:Bioassay;urine;neptunium;thorium;uranium;mass;inductivelycoupledplasma-massspectrometry;gamma-rayspectrometry;isotoperatio;isotopedilution;extractionchromatography
【摘要】:Thispracticemaybeusedaspartofabioassayprogramforworkerspotentiallyexposedtonuclearmaterialbymeasuring237Np,232Thand235Uand238Uintheirurinesamples.ICP-MShasbeenusedtoanalyzeformanyactinidesinhigh-levelradioactivewastes(1)3,insoils(2)aswellasuraniuminurine(C1379).237Npand239PuanalysisbyICP-MSinbioassaysampleshasalsobeenreported(3).Severaldayscountingtimesarerequiredforalpha-particleanalysisof237Np,232Thand235Uand238UwhereasICP-MSrequiresonlyfourminutespersample.Alpha-particlecountingmethodsforneptuniummayalsorequiretheuseof239Puasaradiotracerfordeterminationofchemicalyield.ICP-MSsensitivitylimitsandisobaricinterferencesprecludeaccuratedeterminationof239Pu,241Amand234Uatlevelspresentintheurinesamples.234Umaybeestimatedfromthe235U:238Uratiobyinference.1.1Thispracticecoverstheseparationandpreconcentrationofneptunium-237(237Np),thorium-232(232Th),uranium-235(235U)anduranium-238(238U)fromurinefollowedbyquantitationusingICP-MS.1.2Thispracticecanbeusedtosupportroutinebioassayprograms.Theminimumdetectableconcentrations(MDC)forthismethod,takingthepreconcentrationfactorintoaccount,areapproximately1E-2Bqfor237Np(0.38ng),2E-6Bqfor232Th(0.50ng),4E-5Bqfor235U(0.50ng)and6E-6Bqfor238U(0.48ng).1.3Thisstandarddoesnotpurporttoaddressallofthesafetyproblems,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:C44
【国际标准分类号】:71_040_50
【页数】:5P.;A4
【正文语种】:
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