Vortex

What are they and why do we use them? What types are there?

A vortex rapidly spins a small rubber cap. This can be used to mix liquids within tubes or to agitate a sample. It’s a handy device to have around but not 100% necessary.

A good tube flicking technique will achieve the same end as a vortex, albeit with more effort and less fun.

When do you use?

Anytime you need to mix or agitate a liquid within a tube.

How do you use?

Turn on the vortex. Most have an ‘always on’ and a ‘pressure activated’ setting. Both are fine, whatever you prefer.

Place the tube near the edge of the divot in the rubber ring. Maximum agitation can be achieved by holding the tube loosely and allowing it to vibrate within your hand. Your hand may go a bit numb while doing this, but it’s not an entirely unpleasant sensation.

If you’re mixing a small tube of reactants (e.g. PCR master mix), you should perform a quick spin in the centrifuge to collect the liquid at the bottom. Be sure to balance the centrifuge with a tube of equal weight.