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4-氨基丁醛缩二乙醇
Chlorothalonil-4-hydroxy,10ng/ul 标准品
醋酸鍶,99.9%
甘草酸单铵盐/甘草酸铵对照品,有报告
Chromosorb 102气相填充柱
岛津配件 PIPE,IN
15×30cm培养袋
Stand bases, 210 X 130 mm, thread M10, 1 adjustable foot, with antislide rubber protection, made of stainless steel
气相色谱柱,TG-WAXMS A 60m x 0.32mm x 0.25μm
铜绿假单胞菌增菌肉汤 250g