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甲醇-d4标准品
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p,p’-DDD标准溶液,72-54-8,1000ug/ml in Purge and Trap Methanol
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p,p'-DDD Neat EPA 州标准品
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o,p'-DDD Neat EPA 州标准品
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甲醇-d4标准品 RMCM16103-10g
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甲醇-d4标准品 RMCM16103-50g
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1-溴-4-氟苯标准溶液,460-00-4,浓度:1000μg/ml,基体:甲醇
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p, p’-DDD标准溶液,72-54-8,analytical standard ,50ug/mL in Toluene:Methanol(volume ratio 1:4)
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p, p’-DDD标准溶液
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p, p’-DDD标准溶液,72-54-8,analytical standard,50μg/ml in Isooctane
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