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联苯胺,92-87-5,分析标准品,用于环境分析
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锑粉,7440-36-0,CP,99.0%
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亚硝酸盐标准溶液,100mg/L in water
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硅酸根标准溶液,1000ug/ml in 0.05mol/L NaOH
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(Zr,Hf,W,Mo,Ta,Nb,Ti)多元素混合标准溶液
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钽标准溶液,7440-25-7,analytical standard,1000ug/ml in 1.0 mol/L HF
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锑粒,7440-36-0,99.99% metals basis
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(La, Ce, Pr, Nd, Sm, Eu, Gd, Tb, Dy, Ho, Er, Tm, Yb, Lu, Y) 多元素混合标准溶液(混标),analytical standard,1000ug/ml in 5%HNO3
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锑粉,7440-36-0,≤20μm,99.5% metals basis
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联苯胺标准溶液,92-87-5,1000μg/ml,溶剂:甲醇
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