5.
Tilt the CBC back and forth gently and carefully to ensure that the buffer is
evenly distributed across the top of the baffles. If you do not tilt the CBC back
and forth, the buffer sticks to the baffles because of surface tension.
6.
Verify that the buffer is at or above the fill line.
7.
When ready to install the CBC, place the container on a flat surface (such as a lab
bench) and peel off the seal.
8.
Wipe off any buffer on top of the CBC with a lint-free tissue. Ensure that the top
of the container is dry. Moisture can cause arcing and termination of a run.
9.
Place the appropriate septum on each side of the CBC:
a.
Align the buffer septum (the part that is symmetrical) over the 24 holes of
the CBC.
b.
Push the septum lightly into the holes to start, then push firmly to seat it.
c.
Align the capillary washing septum over the other chamber of the CBC.
d.
Push the septum lightly into the holes to start, then push firmly to seat it.
IMPORTANT!
Look at the CBC from the side and ensure that there is no gap
between the container and the lip of the septum.
IMPORTANT!
Ensure that the washing septum is securely seated to prevent
displacement of the septum during operation.
10.
Click the Tray button on the front panel to move the autosampler to the front
position.
Chapter 9
Maintain the Instrument
Install buffers
9
3500/3500xL Genetic Analyzer User Guide—Data Collection Software v3.1
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