Need help finding a very specific pump

Sorry if this isn't entirely on topic with plumbing, but I was hoping someone here could direct me to a site where I can find a pump needed for my senior design project. Here are the requirements:

• Able to pass water-based fluid continuously for several weeks, uninterrupted.
• Able to move fluid at very low flow rates, as low as 0.01 mL/min
• Does not need to be very powerful; very low expected pressure in the fluid path.
• Can be powered by a simple wall outlet.

I know absolutely nothing about pumps and google hasn't turned up much. If someone could just give me a starting point to start looking, or a type of pump that would likely fit these requirements, I would be grateful. Thanks!