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精馏柱
MOS HYPERSIL 3UM 50X2.1MM COLUMN
20MM 螺口 瓶盖 100/包装 铝瓶盖 W 硅胶 /聚四氟乙烯 LINER
Benzylsulfonyl Chloride
FILTER HOLDER, PTFE, VITON-O-SEALING RING, WITH FILTER DISC, FOR 90 MM
过滤
HyperSep C8 SPE Column, 1g/6mL 30个/包装
(S)-3-哌啶甲酸乙酯
(定制产品)13种元素ICP-MS混标,溶于2% HNO3
蒸馏装置,含6球400mm的冷凝管,500ml圆底烧瓶,250ml锥形烧瓶