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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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三溴甲烷标准溶液,75-25-2,analytical standard, 0.93mg/ml in methanol
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硝酸根离子(NO₃-)标准溶液,500ug/ml in Water (20℃)
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硝酸根离子(NO₃-)标准溶液,100ug/ml in Water (20℃)
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硝酸盐氮标准溶液,100μg/ml in Water (20℃)
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银标准溶液,100ug/ml in 1%HNO3
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铯标准溶液,7440-46-2,100μg/ml,in 1% HCl
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苯标准溶液,71-43-2,analytical standard,1.02mg/ml in methanol
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γ-六六六标准溶液,58-89-9,analytical standard,100ug/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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