DIN ISO 20279-2006 土壤质量.铊的萃取和电热原子吸收光谱法测定

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【英文标准名称】:Soilquality-Extractionofthalliumanddeterminationbyelectrothermalatomicabsorptionspectrometry(ISO20279:2005);EnglishversionofDINISO20279:2006-01
【原文标准名称】:土壤质量.铊的萃取和电热原子吸收光谱法测定
【标准号】:DINISO20279-2006
【标准状态】:现行
【国别】:德国
【发布日期】:2006-01
【实施或试行日期】:
【发布单位】:德国标准化学会(DIN)
【起草单位】:
【标准类型】:()
【标准水平】:()
【中文主题词】:吸收分光光度测定法;原子吸收分光光度测定法;底部;化学的;土壤组分;测定;干燥;电热的;萃取;调查;措施;方法;土壤采样;土壤普查;土壤;试验报告;试验;铊
【英文主题词】:Absorptionspectrophotometry;Atomicabsorptionspectrophotometry;Bottom;Chemical;Compositionoftheground;Determination;Drying;Electrothermal;Extraction;Investigations;Measure;Methods;Soilsampling;Soilsurveys;Soils;Testreports;Testing;Thallium
【摘要】:Thalliumisextractedfromsoilbyamixtureofnitricacidandhydrogenperoxide,anddeterminedinsolutionbyelectrothermalatomicabsorptionspectrometry,inwhichdiscretevolumesofsamplesolutionaredispensedintoagraphitetube.Byincreasingthetemperatureofthistubestepwise,theprocessesofdrying,thermaldecompositionofthematrixandthermaldissociationintofreeatomsoccur.Theresultingabsorptionsignalshould(underoptimumconditions)beasharpsymmetricalpeakwithaheightproportionaltotheelementconcentrationinsolution.
【中国标准分类号】:B11
【国际标准分类号】:13_080_10
【页数】:12P.;A4
【正文语种】:英语