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The stability of HCl solutions at ppb levels has not been determined by our laboratory
5 grams of the sample are fused with 15 grams of a 1:1 Na2CO3 / Na2O2 mix in a Ni0 crucible
Oxides (soluble in HNO3)
Organic Matrices containing silicates and non volatile silicon compounds (dry ash at 450°C in Pt0 and dissolve by gently warming with 1:1:1 H2O / HF / H2SO4 or fuse / ash with Na2CO3 and dissolve fuseate with HCl / H2O)
6020 INTERFER CHK SOLN A 125mL 140-061-031 The stability of HCl solutionsDescription Intended use Spectral Interference Check solution (SIC) specifically designed for use with EPA method 6020 Read more Spectral interference check (SIC) solutions Prepared so as to contain known concentrations of interfering elements that will demonstrate the appropriate magnitude of interferences and provide an adequate test of any corrections. Chloride in the SIC solution provides a means to evaluate software corrections for chloride