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AUTOMATIC PIPETTE - ATTACHMENT, CONE ST 29/32, 2 ML
Laboratory sieve, ?:300 mm, inside height: 55 mm, mesh 1.8mm, with wire gauze, temperature resistance up to 170°C, stainless steel
抗坏血酸钠
AA Grade Beryllium 1,000 mg/L in 2% HNO3, 25 mL (Be Acetate)
多孔自动进洋器样品瓶盘
气相色谱柱,TRACE TR-1 气相柱, 60m, 0.25mmID, 1μm 液膜厚度
1000:10.0ml B级具塞量筒(PE塞子)、棕标
甲醛法(GB-T15262-94)测定二氧化硫配套试剂
2-氯-3-氰基吡嗪