【英文标准名称】:StandardTestMethodforDeterminationofCalcium,Magnesium,Potassium,andSodiuminAtmosphericWetDepositionbyFlameAtomicAbsorptionSpectrophotometry
【原文标准名称】:用火焰原子吸收分光光度法测定大气作用下湿沉积物中钙,镁,钾和钠含量的标准试验方法
【标准号】:ASTMD5086-2001(2008)
【标准状态】:现行
【国别】:美国
【发布日期】:2001
【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】:D22.03
【标准类型】:(TestMethod)
【标准水平】:()
【中文主题词】:
【英文主题词】:atmosphericwetdeposition;atomicabsorption;calcium;magnesium;potassium;precipitation;sodium;Atmosphericwetdeposition(AWD);Beer'slaw;Calciumcontent--atmosphericanalysis;Contamination--atmospheric;FAAS(flameatomicabsorptions
【摘要】:Thistestmethodmaybeusedforthedeterminationofcalcium,magnesium,potassium,andsodiuminatmosphericwetdepositionsamples.Emphasisisplacedontheeasilycontaminatedqualityofatmosphericwetdepositionsamplesduetothelowconcentrationlevelsofdissolvedmetalscommonlypresent.AnnexA1representscumulativefrequencypercentileconcentrationplotsofcalcium,magnesium,potassium,andsodiumobtainedfromanalysesofoverfivethousandwetdepositionsamples.Thesedatamaybeusedasanaidintheselectionofappropriatecalibrationstandardconcentrations.(3)1.1Thistestmethodisapplicabletothedeterminationofcalcium,magnesium,potassium,andsodiuminatmosphericwetdeposition(rain,snow,sleet,andhail)byflameatomicabsorptionspectrophotometry(FAAS).(1)1.2Theconcentrationrangesarelistedbelow.Therangetestedwasconfirmedusingtheinterlaboratorycollaborativetest(seeTable1forastatisticalsummaryofthecollaborativetest).
MDL(mg/L)(2)
RangeofMethod(mg/L)
RangeTested(mg/L)
Calcium
0.009
0.03x2013;3.00
0.168x2013;2.939
Magnesium
0.003
0.01x2013;1.00
0.039x2013;0.682
Potassium
0.003
0.01x2013;1.00
0.029x2013;0.499
Sodium
0.003
0.01x2013;2.00
0.105x2013;1.84