Table 2. Size-exclusion columns available on B21.

Column	Volume (ml)	Mass range (kDa)	Maximum pressure (bar†)	Recommended flow rate (ml min−1)
Superdex 75 (GE Healthcare)	2.4	3–70	35	0.075
Superdex 200 (GE Healthcare)	2.4	100–600	35	0.075
Superose 6 (GE Healthcare)	2.4	5–5000	35	0.075
KW-402.5 (Shodex)	4.6	5–100	85	0.16
KW-403 (Shodex)	4.6	10–700	85	0.16
KW-404 (Shodex)	4.6	30–4000	85	0.16
KW-405 (Shodex)	4.6	40–2000	85	0.16

^†1 bar = 100 000 Pa.