Chapter 2
General cells and cuvettes
Page 2-12
MAN 0487
Folded capillary cell
(DTS1070 / DTS1060/61)
Description
(DTS1070 cell
shown above)
ill 8794
These are maintenance-free capillary cells primarily designed
for zeta potential measurements, but
can
also be used for
size measurements.
They have been designed to be used for a single
measurement or series of measurements, then discarded
rather than cleaned. This removes the chances of cross-
contamination.
The cells are inserted with either the
Malvern logo
(DTS1070)
or the
weld
line
(DTS1060/61) facing the front of the
instrument - refer to the
Inserting the cell
section later in this
chapter.
The cells provide a low-cost alternative to previous reusable
quartz capillary cells.
The stoppers can be replaced with ‘Luer’ connectors to
provide leak-free connection to the optional MPT-2 Titrator.
Size measurements can also be performed without having to
remove and reposition the cell.
Sample details can be written on the textured area on the side
of the cell with a permanent pen.
Application
The cells are used for measurements of aqueous based
samples
Typical solvent
Water, water/alcohol
Optical quality
Good to very good
Material
Body : Polycarbonate
Electrodes : Gold plated beryllium/copper
Minimum
Sample volume
0.75ml
Advantages
Low cost
Single use disposable (no cleaning)
Use with MPT-2 Titrator
No sample cross-contamination
Fast sample change over
Disadvantages
Not resistant to organic solvents
Unsuitable for use at high temperatures (above 70°C)
