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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】:ASTMD6919-2009
【标准状态】:现行
【国别】:美国
【发布日期】:2009
【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;wate,Alkalineearths/alkalies;Ammoniumcations;Calciumcontent--water;Cations;Conductivitydetectors/detection;Dissolvedalkali;Drinkingwat
【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.1.2Theanticipatedrangeofthemethodis0.05x2013;200mg/L.Thespecificconcentrationrangestestedforthismethodforeachcationwereasfollows(measuredinmg/L):Lithium
0.4x2013;10.0
Sodium
4.0x2013;40.0
Ammonium
0.4x2013;10.0
Potassium
1.2x2013;20.0
Magnesium
2.4x2013;20.0
Calcium
4.0x2013;40.0