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NCS162031-100-E(CAS号 789-02-6) 正己烷中2,4’-滴滴涕
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NCS162031-E(CAS号 789-02-6) 正己烷中2,4’-滴滴涕
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2,4'-滴滴涕,789-02-6,分析标准品
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2,4'-滴滴涕标准溶液,789-02-6,1000ug/ml in Purge and Trap Methanol
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2,4′-DDT标准溶液,789-02-6,analytical standard,50ug/mL in 2,2,4-Trimethylpentane
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NCS162032-100-E(CAS号 50-29-3) 正己烷中4,4'-滴滴涕
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正己烷/甲苯中8种有机氯农药混标
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NCS162029-100-D(CAS号947-02-4) 丙酮中硫环磷
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NCS162032-E(CAS号 50-29-3) 正己烷中4,4'-滴滴涕
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A9902404 皱纹假单胞菌 CAS号789-02-6
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