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p,p’-DDT标准溶液,50-29-3,1000ug/ml in Purge and Trap Methanol
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苯胺标准溶液,62-53-3,analytical standard,1000ug/ml in methanol
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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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间二甲苯标准溶液,108-38-3,analytical standard,1000ug/ml in methanol
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水中硝酸根成分分析标准物质,500μg/ml ±1% (20℃)
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正十六烷标准溶液,544-76-3,analytical standard,1000ug/ml in methanol
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苯标准溶液,71-43-2,analytical standard,1000ug/ml in carbon disulfide
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锰标准溶液,7439-96-5,analytical standard ,1000ug/ml in 1.0 mol/L HNO3
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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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