1. What is the Cytiva Flow Rate Converter?

Definition: This tool converts linear flow rate (cm/h) to volumetric flow rate (mL/min) for Cytiva chromatography systems.

Purpose: It helps bioprocessing professionals ensure proper flow rates for chromatography columns during purification processes.

2. How Does the Converter Work?

The converter uses the formula:

Where:

• \( Q_{ml/min} \) — Volumetric flow rate (milliliters per minute)
• \( Q_{cm/h} \) — Linear flow rate (centimeters per hour)
• 0.01667 — Conversion factor (1/60 to convert hours to minutes)

Explanation: The conversion accounts for the time unit change (hours to minutes) and the relationship between linear and volumetric flow in chromatography columns.

3. Importance of Flow Rate Conversion

Details: Proper flow rate conversion ensures accurate method scaling, consistent residence times, and optimal column performance.

4. Using the Converter

Tips: Enter the linear flow rate in cm/h. The tool will automatically calculate the equivalent volumetric flow rate in mL/min.

5. Frequently Asked Questions (FAQ)

Q1: Why convert between cm/h and mL/min?
A: Chromatography methods often specify linear flow rates (cm/h), while pumps are typically controlled with volumetric flow rates (mL/min).

Q2: Is the conversion factor always 0.01667?
A: Yes, this is a constant factor derived from converting hours to minutes (1/60).

Q3: Does this account for column diameter?
A: No, this simple conversion assumes you'll multiply by the column cross-sectional area separately if needed.

Q4: When would I need this conversion?
A: When scaling chromatography methods between different column sizes or when setting up AKTA systems.

Q5: Can I convert mL/min back to cm/h?
A: Yes, simply divide mL/min by 0.01667 to get cm/h.