We claim the ornamental design for a portion of an analysis unit, as shown and described.
FIG. 1 is an isometric view of a portion of an analysis unit.
FIG. 2 is a right side view thereof.
FIG. 3 is a left side view thereof.
FIG. 4 is a top view thereof.
FIG. 5 is a rear view thereof; and,
FIG. 6 is a front view thereof.
A portion of an analysis unit in the accompanying figures may be used in sequencing operations and may be configured to receive one or more cartridges for use in such operations.
Stipple shading is used in the accompanying FIGS. 1-6 to convey surface contouring and is not indicative of any particular texture or coloring.
In the drawings, the evenly spaced broken lines are for illustrating portions of a portion of an analysis unit which form no part of the claimed design. The heavy dot-dash-dot broken lines are for the purpose of showing boundaries of the claim and these heavy dot-dash-dot lines form no part of the claimed design.