For fractionation
A working bench in a climatised room at 20 oC
Refractometer
1.5 ml Non-Stick tubes (e.g. from Ambion)
Test tube utility clamp mounted on a stand
20 ml syringe and a flexible tube (app. 30 cm; for instance from an HPLC pump) attached to it with an adapter and with an additional adapter for a needle
Automatic syringe pump (e.g. Razel)
Needles: 23G and 26G