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苯标准溶液,71-43-2,analytical standard,1000ug/ml in carbon disulfide
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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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1,2-二氯苯标准溶液,95-50-1,analytical standard,1000ug/ml in methanol
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锡标准溶液,7440-31-5,1000ug/ml in 3.0 mol/l HCl with trace HNO3
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钙标准溶液,7440-70-2,analytical standard,1000ug/ml in 5%HCl
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硒标准溶液,7782-49-2,analytical standard ,1000ug/ml in 2.0mol/L HNO3
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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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三溴甲烷标准溶液,75-25-2,analytical standard,1000ug/ml in methanol
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水中硝酸盐氮成分分析标准物质,100μg/ml ±2% (20℃)
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水中硝酸盐氮成分分析标准物质,1000μg/ml ±1% (20℃)
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