钙,Ca,1000μg/ml,介质,1.0 mol/L HNO3 (1.0摩尔/升硝酸),碳酸钙

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六价铬,Cr（Ⅵ）,1000μg/ml,介质,H2O（含K+）（水，含钾离子）,铬酸钾配

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镉,Cd,1000μg/ml,介质,1.0 mol/L HNO3 (1.0摩尔/升硝酸)

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铬,Cr,1000μg/ml,介质,H2O（含K+）（水，含钾离子）,铬酸钾配

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砷,As,1000μg/ml,介质,1.0 mol/L HNO3 (1.0摩尔/升硝酸),金属砷

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铍,Be,1000μg/ml,介质,1.0mol/L HNO3 and tr. HCl（1.0摩尔/升 硝酸和痕量盐酸）,金属铍

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