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砷标准溶液,7440-38-2,analytical standard, 1000ug/ml in 1.0mol/L HNO3
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六价铬标准溶液,7440-47-3,1000ug/ml in H2O
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(Ag,Al,As,Ba,Be,Bi,Ca,Cd,Co,Cr,Cs,Cu,Ga,In,K,Li,Mg,Mn,Na,Ni,Pb,Rb,Se,Sr,Tl,V,Zn,Fe)多元素混合标准溶液,100μg/ml,介质 10%硝酸
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硅酸根标准溶液,1000ug/ml in 0.05mol/L NaOH
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亚硝酸盐标准溶液,100mg/L in water
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联苯胺标准溶液,92-87-5,1000μg/ml,溶剂:甲醇
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铬标准溶液
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铥标准溶液,7440-30-4,1000ug/ml Tm in 1.0 mol/L HNO3
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亚硝酸盐标准溶液(以氮计),100mg/L in water
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亚硝酸盐标准溶液
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