Standard reference materials are homogeneous substances with defined characteristic values, used for calibrating instruments, evaluating methods, and quality control. They can be in the form of pure or mixed gases, liquids, or solids. Their properties must meet the requirements of accuracy, homogeneity, and stability.
Selecting Products Filters
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Product No.Product NameProduct Spec.BrandPrice
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c[(NH4)2Fe(SO4)2·6H2O]＝0.25 mol/LCodow -
c(NH4Cl)=70 g/L,c(MgCl2)=55 g/L,中国药典Codow -
c(CH3COONa)=10 g/LCodow -
c[(C2O4)2-]=0.1 g/LCodow -
c(C6H5OH)=1 g/LCodow -
c(C6H12O6)=1 mg/mLCodow -
c(SiO2)=1 g/LCodow -
c[(F6Si)2-]=0.1 g/LCodow -
c(NO2-)=0.1 g/LCodow -
c[(SiO3)2-]=1000 mg/LCodow -
c(S2-)=0.1 mg/mLCodow -
c(S2O32-)=0.1 g/LCodow -
c[(SO4)2-]=0.1 g/LCodow
