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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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亚硝酸盐标准溶液,1000ug/ml in water
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邻苯二酚标准溶液,120-80-9,analytical standard,1000ug/ml in methanol
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铥标准溶液,7440-30-4,1000ug/ml Tm in 10%HCl
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硝酸盐氮标准溶液,1000ug/ml in Water (20℃)
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苯酚标准溶液,1000ug/ml in 0.02mol/L NaOH
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铱标准溶液,7439-88-5,1000ug/mL Ir in 2.0mol/L HCL
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银标准溶液,analytical standard ,1000ug/ml in 1%HNO3
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四氯化碳标准溶液,56-23-5,analytical standard,1000ug/ml in methanol
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水中硝酸根成分分析标准物质,1000ug/ml ±1% (20℃)
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