HPLCGradeWaterProductDescription
Covachem"sHPLCGradeWaterishighlyrefinedforoptimalperformanceinHighPerformanceLiquidChromatography.Thisproductis0.22micronfiltered,andcontainsaverylowultravioletabsorbanceforlowbackgroundsignalandsmoothbaselineperformanceinHPLCapplications.
PackageSizes:1Liter,4Litersand4x4LitersProductNumbers:16301-1,16301-4,16301-4x4
ProductName:HPLCGradeWater
AlternativeNames:HPLCWater;HPLCGradeH2O;HPLCH2O;WaterforHPLC
Specifications
Appearance:Clear,ColorlessLiquid
LCGrADIentStABIlityTest(254nm):Topasstest
Fluorescenceatemissionmaxforimpurities(450nm):0.1ppbmax
Residueafterevaporation:1ppmmax
Absorbanceat:
190nm......0.01max200nm......0.01max210nm......0.01max250nm......0.005max400nm......0.005maxRecommendedStorage:RoomTemperature,protectedfromexcesslight
Properties
PropertiesPhysicalState:Liquid
CAS#:7732-18-5
ChemicalFormula:H2O
MolecularWeight:18.02
MeltingPoint:0°C(Lit)
BoilingPoint:100°C(Lit)
CountryofOrigin:USA
TariffCode:2853.00.0095
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)懂得一些道理或知识.
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乐.这也是感恩.
这个“类”是什么意思?

