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胰酪胨大豆肉汤
PCB 70(2,3’,4’,5-四氯联苯) 标准品
正丁基氯化镁
替换 SilTite 套箍, 0.1-0.25mm, 10个/包装
Inoculating loop, ?: 2,5 mm, length: 60 mm, made of stainless steel
消毒炉发热管
测试管
吡啶
填充柱 20% PEG-20M on Chromosorb WAW 60/80
N-芴甲氧羰基-D-天冬氨酸-4-叔丁酯