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4-氯吡唑
HOMSi? p-Methoxyphenyl [2-(p-Methoxyphenyl)dimethylsilanyl]phenyl]methano
六氢姜黄素
氯化钠溶液
0.5mL环标刻度吸管(A 级)
滤片(50片/包)
BOTTLES, CONICAL SHOULDER, NARROW MOUTH, AMBER SODA-GLASS, PE-STOPPER, ST 29/32, 2000 ML
Micro standard rectangular cells, 700 μl, path length 10 mm, applicable wavelength 220-3800 nm, 2 polished windows, 45 x 12.5 x 12.5 mm, quartz glass IR with PTFE-lid
(Cd)镉溶液标准物质
AS级微型滴定管,10:0.02ml,双PTFE活塞