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Cadmium (standard sample),7.75ug/L, H2O, 20ml
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Cadmium (standard sample),9.71ug/L, H2O, 20ml
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Cadmium (standard sample),29.3ug/L, H2O, 20ml
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Chromium ion standard solution,500ug/mL, H2O, 20ml
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Chromium ion standard solution,500ug/mL, H2O, 50ml
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Vanadium ion standard solution,500mg/L, solvent: water, 20ml
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lead ion sdandard solution,1000ug/ml, 1%HNO3, 20ml
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lead ion sdandard solution,500ug/ml, 1%HNO3, 20ml
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lead ion sdandard solution,500ug/ml, 1%HNO3, 50ml
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lead ion sdandard solution,100ug/ml, 1%HNO3, 20ml
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lead ion sdandard solution,100ug/ml, 1%HNO3, 50ml
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