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O-Ring Viton Brown for Corning One-Step Snyder
铊空心阴极灯
Tecan 1000ul机械臂透明吸头,盒装,滤芯,灭菌
亚胺培南(一水物)
碘标准滴定溶液,c(1/2I2)=0.01mol/L(0.01N)
THERMOSTATIC-REACTION VESSEL, FLAT FLANGE WITH GROOVE, WITH DRAWAL VALVE, GRADUATED, CYLINDRICAL, ROUND BOTTOM, DN 120, 6000 ML, GL 18, VALVE 10 MM, OUTER ? 215 MM, INNER ? 170 MM, HEIGHT 44
SQUARE BOTTLES, NARROW NECK, MADE FROM DYFLOR, COMPL.W.SCREW CAP. 250 ML, GL 25
乙苯 2ml GCS(沃凯)
200mL,容量瓶,USP级,透明,3.3玻璃,误差±0.10 mL,ST 14/23,玻璃顶塞,蓝标,含证书
4种元素ICP-MS混标,K/Ca/Mg/Na,溶于4% HNO3