Sigma-Aldrich
Sigma-Aldrich?micro pH combination electrode, glass body
Spinbar?magnetic stir bar
Spinbar?磁力搅拌棒
Vacuum filtration assembly funnel tops
VerSA-FlowTMcan and drum dispenser
Wilmad?NMR tubes 5 mm diam., precision
Wilmad?NMR 管,直径 5 mm,精度型
Kern 440 series Toploader balances