Bio-rad Duoflow System
Bio-rad Duoflow System - Related Videos
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FAQs
Programmed pumps move buffers through the column according to a selected method, while valves control where the fluid travels during separation and collection. Changing the gradient alters the buffer conditions experienced by the sample over time. Coordinated valve operation supports routing toward collection and monitoring, making chromatography runs configurable and reproducible.
Ultraviolet absorbance and conductivity detectors provide time-dependent signals as components leave the column. Researchers can use these monitored responses to follow elution behavior and associate portions of the run with collected fractions. Considering both signals gives a broader record of the separation than relying on collection timing alone, supporting subsequent fraction analysis.
The workstation can be configured for affinity, ion-exchange, or size-exclusion chromatography, allowing the selected separation method to match the sample and column. Although the platform provides common control functions across these approaches, researchers adjust operating parameters such as flow rate and fraction-collection conditions for the particular chromatographic setup and experimental goal.
A typical run requires configuring the chosen chromatography method, connecting the appropriate column and buffers, programming pump conditions, and setting valve routing. Researchers then establish detector monitoring and fraction-collection conditions before starting the separation. As the sample elutes, the system records signals and directs selected output into collection fractions for later analysis.
Flow rate and fraction-collection conditions are key adjustable parameters. The selected settings should correspond to the sample, the column, and the intended chromatography method, whether affinity, ion-exchange, or size-exclusion. Adjusting these controls helps researchers organize elution monitoring and collect material under conditions suited to the planned purification or analysis.
Its programmable operation supports reproducible protein purification and method development, rather than limiting researchers to one fixed separation. The resulting fractions can provide cleaner samples for biochemical assays, structural studies, and downstream characterization. In biology, this connects controlled chromatography conditions with later experiments that require more suitable protein preparations.