ASTM D5810-1996(2006) 向水样品中添加同位素指示剂的标准导则

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【英文标准名称】:StandardGuideforSpikingintoAqueousSamples
【原文标准名称】:向水样品中添加同位素指示剂的标准导则
【标准号】:ASTMD5810-1996(2006)
【标准状态】:现行
【国别】:
【发布日期】:1996
【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】:D19.02
【标准类型】:(Guide)
【标准水平】:()
【中文主题词】:导则;最大同位素;回收百分比;可溶物分析;加入示踪同位素;添加同位素指示剂;向水样品中添加同位素指示剂;代用品;内部标准;质量保证;偏差;水;回收
【英文主题词】:bias;internalstandards;matrixspike;percentrecovery;qualityassurance;recovery;spike;spiking;standardadditions;surrogates
【摘要】:1.1Thisguidecoversthegeneraltechniqueof"spiking"abroadrangeofmaterialsintoaqueousmedia.Thisguidewillservetheanalystinpreparingspikedsamplesforqualitycontrolpurposes.Guidanceisalsoprovidedtoaidtheanalystincalculatingrecoveriesandinterpretingresults.Itistheresponsibilityoftheanalysttodeterminewhethertheproceduresandmaterialsdescribedhereareappropriatetothetaskathand.1.2Theproceduresinthisguidearefocusedon"matrixspike"preparation,analysis,andinterpretationofresults.Theapplicabilityoftheseprocedurestothepreparationofcalibrationstandards,calibrationcheckstandards,laboratorycontrolstandards,referencematerials,andotherqualitycontrolmaterialsbyspikingisincidental.Asample(thematrix)isfortified(spiked)withtheanalyteofinterestforavarietyofanalyticalandqualitycontrolpurposes.Whilethespikingofmultiplesampleportionsisdiscussed,themethodofstandardadditionsisnotcovered.1.3Thisguideisintendedforuseinconjunctionwiththeindividualanalyticaltestmethodthatprovidesproceduresforanalysisoftheanalyteorcomponentofinterest.Thetestmethodisusedtodetermineananalyteorcomponent''sbackgroundleveland,againafterspiking,itsnowelevatedlevel.Eachtestmethodtypicallyprovidesproceduresnotonlyforsamples,butalsoforcalibrationstandardsoranalyticalcontrolsolutions,orboth.Theseproceduresincludepreparation,handling,storage,preservation,andanalysistechniques.Theseproceduresareapplicablebyextension,usingtheanalyst''sjudgementonacase-by-casebasis,tospikingsolutions,andarenotreiteratedinthisguide.SeealsoPracticeE200forpreparationandstorageinformation.1.4Theseproceduresapplyonlytoanalytesthataresolubleinwaterattheconcentrationofthespikeplusanybackgroundmaterial,ortoanalytessolubleinasolventthatisitselfwater-soluble.Thesystemusedinthelatercasemustresultinahomogeneoussolutionofanalyteandsample.Meaningfulrecoverydatacannotbeobtainedifanaqueoussolutionorhomogenoussuspensionoftheanalyteofinterestinthesamplecannotbeattained.Theseproceduresmaybeapplicabletomicrobiologicalpreparationsifthehomogeneityofthesuspensioncanbeadequatelymaintainedthroughoutthecourseoftheanalysis,forexample,bymechanicalagitationorstirring.1.5Matrixspikingmaybeperformedinthefieldorinthelaboratory,dependingonwhichpartoftheanalyticalprocessistobetested.Fieldspikingteststherecoveryoftheoverallprocess,includingpreservationandshippingofthesample.Laboratoryspikingteststhelaboratoryprocessonly.Spikingofsampleextracts,concentrates,ordilutionswilltestonlythatportionoftheprocesssubsequenttoadditionofthespike.1.6ThevaluesstatedinSIunitsaretoberegardedasthestandard.Thisstandarddoesnotpurporttoaddressallofthesafetyconcerns,ifany,associatedwithitsuse.Itistheresponsibilityoftheuserofthisstandardtoestablishappropriatesafetyandhealthpracticesanddeterminetheapplicabilityofregulatorylimitationspriortouse.
【中国标准分类号】:Z16
【国际标准分类号】:19_020
【页数】:6P.;A4
【正文语种】: