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测试管(O型圈)
彩色手动泵
5-溴-2-氯甲苯
Sep-Pak C8 SPE小柱, Vac 6cc, 500mg
Solvent Filter UHMWPE 1/16 10μm
Silicon tubing, inner ? 8 mm, outer ? 11 mm, wall thickness ? 1,5 mm, transparent, temperature range -60°C - +200°C, in short times to 260°C Pack = 25 m
铜单元素标准溶液,ICP/AA标液,基体HCl
Burette type Dr. Schilling,with Schellbach stripe, class B, 25 ml
标样-离子色谱用阳离子-水中镁-镁离子
MDN-12 气相毛细管柱