O, N determination in steel samples (Inner and outer graphite crucibles)
- 上传人: 上海科学仪器有限公司 |大小:364.38KB|浏览:2065次|时间:2018-08-16
- 文档简介
- 您可能感兴趣的资料
-
standard test method for determination of total sulf
-
Determination of FAME and Esters
-
Determination of Free and Total Glycerine
-
Sensitive quantitative determination of oxymatrine a
-
Determination of agmatine in biological samples by c
-
Determination of levodopa by capillary electrophores
-
Determination of folic acid by capillary electrophor
-
Determination of agmatine in biological samples by c
-
Determination of free d-alanine in the human plasma
-
Separation and determination of acrylamide in potato
SuitableanalyzersnON900nONH2000UsedaccessoriesnInnergraphitecrucibles(90180)nOutergraphitecrucibles(90185)nSuitablecalibrationmaterial(NISTorother)SettingsnComparatorlevel:5mV(lowoxygen);20mV(other)nMinimumtime:15sec(oxygen);35sec(nitrogen)nMaximumtime:3:00minnPostwaiting:20secnBaselinedeviation:20mV;Step:16mV;Time:10secnMode:continuousnOutgasTime:45secPower:5kWnTimePurge:15secStability:45secnIntegrationdelayIRcell:2secTCcell:10secnAnalyse(1)Time:40secPower(1):4kWPower(2):4kWSamplepreparationMakesurethatthesurfaceofthesteelisfreefromcontaminations;otherwisecleanthesamplewithacetonep.a.andletdryatatmosphere.ProcedurenPrepareELTRAanalyzer(exchangeanhydrone,sodiumhydroxide,copperoxidewhennecessary),cleanfurnace,sampledropmechanism,electrodetipnRunthreeblankswithemptycruciblesnCalibratetheanalyzerwithsuitablecalibrationmaterial(NISTorother)(1)Filloneemptyinnercrucible(90180)inoneoutercrucible(90185)andplacethemontheelectrodetip,closefurnace(F2Button)(2)Weighcalibrationmaterial(usuallypins)(3)Placecalibrationmaterialinthesampledropmechanismandstartanalysis(F5Button)Afteranalysisgivetheinnercrucibleintowasteandfillinanewone.Theoutercruciblescanbeusedapproximately10times.Repeatsteps(1)(3)atleastthreetimes;Marktheresultsandusethecalibrationfunctioninthesoftware.
标签: