I do actually work at a University, though in Engineering rather than Chemistry/Biology where I imagine they'd use those vials.
Yeah I saw that place, 30ml is pretty big for a mixing pot (given Tamiya pots are only 10ml anyway) so I'd possibly go for this one instead:
http://glassbottlesdirect.cart.net.au/epages/glassbottlesdirect.sf/en_AU/?ObjectPath=/Shops/glassbottlesdirect/Products/PAN15-CL
I also saw this place, at first I thought they were much more expensive because you have to buy the caps separate but then I realised the price goes down if you order 10+, so they aren't too badly priced (though still a bit more expensive)....
http://shop.newdirections.com.au/Packaging/Bottles/Glass-Bottles/Boston-Bottles
Much better value than the Tamiya and Gunze pots, hopefully they don't dry out! I also saw Alclad sell packs of 3 bottles for reasonably cheap, but finding someone who stocks them is again a challenge.
Tamiya acrylics and Gunze lacquers are my favourite for airbrushing, but the colour range sucks and I don't like having to mix colours every single time, so I was figuring I'd get a bunch of empty pots so I can just mix a lot of my common colours.