Cuvette I (8µl) This Ultra-Micro Cuvette was custom designed for measurements using 8ul or more of sample. The top section is constructed so that capillary action is prevented when pipetting sample into the micro cell. Due to this custom design only 8 μI of sample is required. By retaining a path length of 3 mm, sensitivity has not be compromised. This cell is constructed so that filling and emptying can easily be accomplished with commonly available pipette tips.