Advanced protein features
Chapter 6
Zetasizer Nano accessories guide
Page 6-5
Measurement
Settings
Description
Sub-runs per
group
With
Automatic
selected, the software will automatically
determine the numbert of sub-runs required per measure-
ment. This will be suitable for the majority of samples and
can simply be left as the default. With
manual
selected the
measurement will use the user defined
Number of runs:
set-
ting.
The time may be reduced for the measurement of a latex
standard, or increased to improve the repeatability of the
measurement of particularly polydisperse samples. All the
individual runs are accumulated and then averaged to give a
final zeta potential result. Therefore the more runs performed
the better the repeatability. Naturally the more runs selected
the longer the duration of the complete measurement.
Groups per
measurement
Measurements of protein mobility are run as groups of a lim-
ited number of sub-runs. The results from the groups are
combined in the final result. This option defines the total
number of groups
that are combined to make up the result.
Add a delay between the measurements of each group in the
Delay between groups
entry box if required. A typical delay
between groups would be 180s.
