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【英文标准名称】:StandardTestMethodforDeterminationofDissolvedAlkaliandAlkalineEarthCationsandAmmoniuminWaterandWastewaterbyIonChromatography
【原文标准名称】:用离子色谱法测定水及废水中溶解的碱及碱土阳离子及铵的标准试验方法
【标准号】:ASTMD6919-2003
【标准状态】:现行
【国别】:
【发布日期】:2003
【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】:D19.05
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:alkaliandalkalineearthcations;ammoniumcation;conductivitydetection;ionchromatography;wastewater;water
【摘要】:Thismethodisapplicabletothesimultaneousdeterminationofdissolvedalkaliandalkalineearthcationsandammoniuminwaterandwastewaters.Alkaliandalkalineearthcationsaretraditionallydeterminedbyusingspectroscopictechniques,suchasAASorICP;whereasammoniumcanbemeasuredbyusingavarietyofwetchemicalmethods,includingcolorimetry,ammonia-selectiveelectrode,andtitrimetry.However,ionchromatographyprovidesarelativelystraightforwardmethodforthesimultaneousdeterminationofcations,suchaslithium,sodium,potassium,calcium,magnesium,andammonium,infewerthan20x2013;30min.1.1Thistestmethodisvalidforthesimultaneousdeterminationoftheinorganicalkaliandalkalineearthcations,lithium,sodium,potassium,magnesium,andcalcium,aswellastheammoniumcationinreagentwater,drinkingwater,andwastewatersbysuppressedandnonsuppressedionchromatography.1.2Theanticipatedrangeofthemethodis0.05-200mg/L.Thespecificconcentrationrangestestedforthismethodforeachcationwereasfollows(measuredinmg/L):Lithium0.4-10.0Sodium4.0-40.0Ammonium0.4-10.0Potassium1.2-20.0Magnesium2.4-20.0Calcium4.0-40.0