Using the system
36
Electrical and communication connections
1. Connect the NanoSampler to the USB port with the cable provided.
2. Connect the power cable between the NanoSampler and the power outlet. Refer
to Power cords and power safety on page 10 for more safety information.
3. Switch on the NanoSampler.
4. Start the Zetasizer software on your computer.
Fluid connections
1. Connect the drain tubing to the waste outlet.
2. Fill the wash solvent bottle inside the sampling compartment of the NanoSampler
with distilled water and propanol (80/20 v/v%) or mobile phase.
Note: only water or organic solvents should be used. Do not buffer solutions
as these may block and damage the system.
Sample preparation and loading
Take the following into account when handling samples:
l
Standard vials are best filled by using a narrow-end pipette to allow air to escape
when filling the vial.
l
Do not fill vials/wells to the top. This prevents sample being drawn into the
needle, risking cross-contamination of samples.
l
Seals must be airtight to stop bubbles from forming and to prevent evaporation
of volatile samples.
l
Filtering the eluent with 0.2µm filter considerably reduces the risk of clogging.
This also applies to samples; ensure you use the appropriate filter material for
sample filtration.
Samples can be prepared under the same conditions (e.g. dispersant, concentration) as
for a batch measurement. Ensure the transport/cleaning fluid used is appropriate to the
samples. For example, if you are using an aqueous dispersant it is not advisable to use
organic solvent as a cleaning fluid.
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