1 ACQUITY Isocratic Solvent Manager
18
September 26, 2013, 715004208 Rev. A
Note:
The Post-column Addition kit is not compatible with the UPC
2
Flow-splitter kits.
Visit www.waters.com/wqp for information about optional ISM kits, including
how to order them.
Split ratio
The split ratio depends on various factors including, but not limited to, all
flow-path components downstream of the split and chromatographic
conditions (flow rate and solvent composition for both LC and make-up flows).
Restrictor modules in the ACQUITY UPLC and Alliance flow-splitter kits are
used to tune the magnitude of the split ratio. The numeric labels on the
restrictor modules correspond to the magnitude of the split ratio, as shown in
the following tables. Restrictor modules with higher numeric labels result in
higher split ratios.
Label descriptions for the ACQUITY UPLC Flow-splitter kit restrictor
module:
Restrictor module
label
Description
10
Allows the largest amount of analytical flow to the
QDa detector.
100
Allows a smaller amount of analytical flow to the QDa
detector.
250
Allows the smallest amount of analytical flow to the
QDa detector.
Label descriptions for the Alliance Flow-splitter kit restrictor module:
Restrictor module
label
Description
5
Allows the largest amount of analytical flow to the
QDa detector.
10
Allows a smaller amount of analytical flow to the QDa
detector.
100
Allows the smallest amount of analytical flow to the
QDa detector.