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3.5.5 Edit Gradient Options
Figure 3-6 Edit Gradient screen
3.5.6 Peak Collection
EAR99 Technology Technology Subject to Restrictions Contained on the Cover Page
• I
W
– Entering a volume sends fluid to waste
NITIAL
ASTE
before the first peak of interest, along with the antici-
pated volume of fluid that will pass through the column
before a compound of interest will elute.
• T
W
– When selected, each window limits the
IME
INDOWS
fraction collection during the run to S
times entered as the minutes after the start of the run.
That is, it identifies a peak of interest to be collected
during the separation. The E
(maximum). You can then set P
collect A
or to collect only P
LL
window.
E
G
on the M
DIT
RADIENT
(Figure 3-6) from which you can:
• More precisely define a gradient than is possible with a
finger drag by displaying the gradient in a tabular
format (Figure 3-6).
• Change solvents with each segment of the separation.
• Set a constant percentage of a third solvent as the
M
(lower right corner of the screen).
ODIFIER
Collapse the table by pressing E
Peak Collection – Describes how peak states limit when fluid is
collected.
• P
- Collects fluid only when the time window is
EAKS
active and a peak is present.
CombiFlash NextGen Systems
Section 3 Operation
and E
TART
time can be M
ND
C
EAK
OLLECTION
during the time
EAKS
E
screen opens a table
ETHOD
DITOR
G
again.
DIT
RADIENT
ND
.
AX
to
3-13
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