氨氮标准溶液
50ml,500mg/L in H2O
钬标准溶液
100ml,1mg/ml in 1.0mol/L HNO3
钆标准溶液
20ml,1000ug/ml in 10% HCl
钙标准溶液
20ml,analytical standard,500mg/L in 1%HCl
碘离子标准溶液
100ml,1mg/ml in water
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