Modes of operation system operation 7-23 – Bio-Rad BioLogic Signal Import Module (SIM) User Manual
Page 152

Table 7-10. (continued)
Fraction Collection
Description: Threshold and Collection Windows
Threshold and Collection Windows: Each Collection Window (discussed on page 7-22) can also contain a
threshold value to further discriminate when eluant can be collected. For each collection window, non-peak
eluent can be directed to waste or to the fraction collector. The Threshold and Time windows can be
combined, so the system collects fractions only during the programmed Time windows and within the Time
windows only when the detector signal is above or below the threshold.
When using the Collection Windows functions, the BioFrac and Model 2128 will skip a tube between each
window collection. For example, if the first window ends collection at 20 minutes and the second window
starts collection starting at 21 minutes, then the fraction collector will leave an empty tube for the period
between minutes 20 and 21.
Collect All
Threshold
Collection Windows
Threshold and Collection Windows
Fraction Collection Scheme
Close
Waste
Destination:
Non-peak Parameters:
Tubes
Below Threshold
Above Threshold
A
B
90
Rack:
1
1A
1F
Tube #:
Row Col.
Start:
End:
1.00
Fraction Size
ml
0.100
Threshold
1.00
4.00
5.00
0.60
1.00
Fraction Size
ml
UV Detector
Threshold Dectector
BioFrac Rack Type: F1 (12-13 mm tubes)
AU
Thresh.
(AU)
Non-Peak Frac. Size
(ml)
Start
(ml)
CollectionWindows
Fraction Collector Scheme
End
(ml)
Frac. Size
(ml)
1
2
7.00
8.00
1.00
0.000
Waste
Waste
1
2
7.00
Start
(ml)
Save Window
Finished Adding
8.00
CollectionWindows
Fraction Collector Scheme
8.00
End
(ml)
1.00
1.00
4.00
5.00
0.60
Frac. Size
(ml)
1.00
0.200
0.01
Waste
Tubes
0.0
4.0
1.00
1.00
0.01
Thresh.
(AU)
Thresh.
(AU)
Non-Peak Frac. Size
(ml)
Waste
Tubes
Non-Peak Frac. Size
(ml)
Start
(ml)
Close
Save Changes
EDIT MODE
CollectionWindows
Fraction Collector Scheme
End
(ml)
Frac. Size
(ml)
1
2
7.00
8.00
1.00
0.010
Waste
Delete Window
Cancel Editing
Close
Add Window
SELECT MODE
Delete Window
Close
ADD MODE
Delete Window
0.100
0.200
Waste
Waste
MODES OF OPERATION
SYSTEM OPERATION
7-23
- BioLogic DuoFlow Pathfinder 80 System DuoFlow™ Chromatography System BioLogic DuoFlow Pathfinder 20 System DuoFlow™ Chromatography System BioLogic DuoFlow Maximizer 80 System DuoFlow™ Chromatography System BioLogic DuoFlow Maximizer 20 System DuoFlow™ Chromatography System BioLogic DuoFlow QuadTec 40 System DuoFlow™ Chromatography System BioLogic DuoFlow QuadTec 10 System DuoFlow™ Chromatography System BioLogic DuoFlow 40 System Chromatography System BioLogic DuoFlow 10 System Chromatography System