Figure 3.
(a) A typical electropherogram of a mixture of five FITC-labeled amino acids. (b) Electropherogram of continuous separation of the same sample droplet of a mixture of FITC-labeled amino acids in repeatability experiment. (c) Electropherogram of the repeatability experiment for continuous separation of 25 sample droplets in different nanowells of the droplet array with the same composition of a mixture of three FITC-labeled amino acids. Conditions: tapered-tip capillary, 50 μm i.d.; effective separation length, 2.0 cm; oil volume, 200 μL; capillary removing speed, 1000 mm/min; separation field strength, 350 V/cm; working electrolyte, 5 × 10−3 M borate buffer (pH 9.2).