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SB05-189-2008 PCB NO.126 2ug/ml , 1ml
42731, 2,4'-Dichlorobiphenyl (IUPAC No. 8) (purity) 标准品
Glyceryl Behenate
Thorium oxalate (无证书)
2-NP-AMOZ 标准品
Biphenyl (13C12) Solution 100ug/ml in n-Nonane
Aldosterone 18-Oxime 21-Acetate
2,3,4,5-四氯联苯溶液,100ppm
甲醇中磺胺噻唑溶液标准物质 农科院质标所
Etofenprox Solution in Acetonitrile
甲醇中异丙威溶液标准物质-叶蝉散
