Definitely worth checking out the volume of your 36 drops, but it probably will be somewhere around 2 ml. It would be good to find a graduated cylinder that can measure to the closest 0.1ml...or at least .25 ml...if only to keep you from having to count out 72 drops for every print!
I have medical syringes (w/o the needles!) that measure to 0.1 ml -- up to 3ml. Something like that would be nice to use to draw out the solutions...pouring out small volumes is not easy and asking for accidental spills. Not a big deal with Sol #1 or #2, but costly with platinum or palladium! I use the syringes to shoot the mix under the edge of my puddle pusher.