国家标准物质-标准物质实验室【北京华研】
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USGS80 silver phosphatesilver phosphate silver phosphate 0.5g
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USGS78 vacuum oil, 2H-enrichedvacuum oil, 2H-enriched vacuum oil, 2H-enriched 1mL
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NBS 22a vacuum oil, regularvacuum oil, regular vacuum oil, regular 1mL
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USGS77 polyethylene powderpolyethylene powder polyethylene powder 1g
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USGS76 methylheptadecanoatemethylheptadecanoate methylheptadecanoate 50μL
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USGS75 L-valineL-valine L-valine 100mg
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USGS74 L-valineL-valine L-valine 100mg
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USGS73 L-valineL-valine L-valine 0.5g
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USGS72 icosanoic acid methyl ester (C20 FAME)icosanoic acid methyl ester (C20 FAME) icosanoic acid methyl ester (C20 FAME) 100mg
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USGS71 icosanoic acid methyl ester (C20 FAME)icosanoic acid methyl ester (C20 FAME) icosanoic acid methyl ester (C20 FAME) 100mg
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