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NSI 饮用水QC样-钒
2-氯乙醇-1.1.2.2-同位素D4 BePure-21145XM-5mL
1-溴-2-硝基苯
丁乙酸泼尼松龙 BePure-24112
Fenoprofen Sodium
ARISTOLOCHIC ACID STANDARDS KIT 标准品
1.1-Diphenylhydrazine hydrochloride (无证书)
Isopropyl bromoacetate (无证书)
标样-甲醇中8种有机氯农药混标
Decachlorobiphenyl Solution 1000ug/ml in Hexane