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钡标准溶液,7440-39-3,analytical standard,1000ug/ml in 1.0 mol/L HNO3
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SRM-A11D1AAS 乙二胺四乙酸二钠标准溶液
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亚硝酸盐标准溶液(以氮计),100mg/L in water
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五日生化需氧量(耗氧量)(BOD5)成分分析标准物质,1000mg/L in water
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硒标准溶液,7782-49-2,100mg/L in water
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(F-, Cl-, NO3-, PO4-, SO42-) 多元素混合标准溶液(混标),1000μg/ml in H2O
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水中无机碳溶液标准物质,1000mg/L,in water
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硒标准溶液,7782-49-2,100mg/L in 1%HCl
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钯标准溶液,7647-10-1,1000ug/ml in 2.0 mol/L hydrochloric acid
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铟标准溶液,7440-74-6,100mg/L (20℃) in 1%HCl
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