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HYPERSIL GOLD C8 5UM 50X0.3MM KAPPA COLUMN
PUNYW7492578 Dexamethasone Sodium Phosphate EP Impurity G (Dexamethasone Acid)
PK1 O-RING FOR VERSAFLASH 80MM SOLID&
PHENYL HYPERSIL 5UM 300X4MM COLUMN
填充柱 Tenax TA 60/80
2，3-二氯硝基苯
气相色谱柱，TRACE TR-WAX 气相柱, 30m, 0.32mmID, 0.25μm 液膜厚度
SINTERED DISCS, 70 MM DIAM. P 1
Spursil C18 5μm 250 x 10.0mm
Heptachlor-endo-epoxide (trans-, isomer A),10ng/ul 标准品
