14
Figure 23
Adjusting the Probe Height
6
Tighten the probe clamps.
7
Use the provided spiral wraps to secure the sample tube to the Z-drive cable.
There should be just a little curve to the free sample tube when the probe is
lowered, and an untangled loop when the probe is raised. Check that the
tubing will not be stretched and will not snag on an obstacle when the probe is
moved to the far corner sample positions.
Figure 24
Positioning the Sample Tubing
8
Optional: Moisten a Kimwipes
wiper with 10% HNO
3
and wipe the probe to
remove any aqueous or inorganic contamination from the surface. Then
moisten a new Kimwipes wiper with a chromatography grade solvent such as
n-propanol, isopropanol, or hexane and wipe the probe again to remove any
oil. Let the probe air dry. Be careful not to touch the probe without gloves—
residue from handling the probe can cause the surface tension properties of
the probe surface to change and can lead to material dripping off the probe
during use. Periodic cleaning may be necessary depending on the application.
Loop
Spiral wrap
