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3-(甲氨基)-1-丙醇
10%PEG-20M ON CHROMOSORB W HP 60-80 MESH 1.5M GLASS
QuEChERS样品萃取管,25 mg PSA,2.5 mg GCB,150 mg MgSO4适用于含色素的水果和蔬菜
BIOBASIC 8 5UM 100X4.6MM PEEK COLUMN
烧杯,低型,PP材质,500: 50 ml,蚀刻刻度
BETASIL C6 3UM 150X2.1MM COLUMN
5A分子筛 40-60 mesh
SINGLE WAY STOPCOCKS, GROUND AND POLISHED, WITHOUT KEYS, BORE 10 MM, DURAN
套装 未组装 -SUPER HR 透明 样品瓶 2ML 20X40MM 200-400 瓶盖 聚四氟乙烯/硅树脂 12/包装
烧杯,200ml