Instruction manual
PV820/PV830 Pneumatic PicoPump
World Precision Instruments 23
APPENDIX B: DROPLET VOLUME
Use the chart below to gauge the volume of a droplet and the table to determine the
volume a micropipette can hold.
1mL =
1cm
1.24cm
100μL =
4.64mm
5.76mm
10μL =
2.15mm
2.67mm
1μL =
1mm
1.24mm
100nL =
464μm
576.36μm
10nL =
215μm
267μm
1nL =
100μm
1.24μm
100pL =
46μm
57μm
10pL =
21.5μm
27μm
1pL =
10μm
12.4μm
Fig. 19—This graph compares the dimensions of a cube and a sphere with the same
internal volume.
Volume of a Micropipette
OD ID Approx. Volume/cm Approx. Volume/inch
1.0 mm 0.58 mm 2.6 μL/cm 6.7 μL/in
1.2 mm 0.68 mm 3.6 μL/cm 9.2 μL/in
1.0 mm 0.75 mm 4.4 μL/cm 11.2 μL/in
1.5 mm 0.84 mm 5.6 μL/cm 14.1 μL/in
1.2 mm 0.90 mm 6.4 μL/cm 16.2 μL/in
1.5 mm 1.12 mm 9.8 μL/cm 25 μL/in
2.0 mm 1.12 mm 9.8 μL/cm 25 μL/in










