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三对甲苯基膦
甲醇中8种β-受体激素&普萘洛尔混标溶液,100μg/mL
套装 STEP2 样品瓶 /旋盖/钳口盖-组合装 100
果胶酶 BR(沪试)
PCB 201 2,2′,3,3′,4,5′,6,6′-Octachlorobiphenyl) 标准品
Lead 1,000 mg/L in 2% HNO3, 50 mL (Pb Metal)
磷钼酸 水合物
VACUUM FILTRATION EQUIPMENT, 15 ML, FILTER FUNNEL, W. GLASS FILTER DISC, MEMBRANE ? 25 MM, SOCKET ST 29/32, SVS-TUBING CONNECTION, WITHOUT FLASK, WITHOUT CLAMP
Injection needles, ?: 1 mm, length: 60 mm, Gauge 19G, autoclavable, made of stainless steel Case = 12 pcs.
石油醚90-120