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The silica and lead sulfate are filtered off after the addition of water)
H2SO4 and HF aqueous matrices and very soluble in NH4OH
1000ug/mL OSMIUM 30mL
CGC10-125ML
300.0 LAB FORTIF STD 125mL ICP-42H-0.5 The silica and lead sulfateDescription Intended use Laboratory Fortified Sample solution (LFS) used in preparation of Laboratory Fortified Matrix (LFM) An aliquot of an environmental sample to which known quantities of the method analytes are added in the laboratory. Read more The LFM is analyzed exactly like a sample, and its purpose is to determine whether the sample matrix contributes bias to the analytical results. The background concentrations of the analytes in the sample