A simple, automated device for the precise addition of liquids
1989
Automated Device for Precise Liquid Addition
publication
Evidence: moderate
Author Information
Author(s): Gary W. Kramer, Jose M. Hanquier, A. Roger Frisbee, Philip L. Fuchs
Primary Institution: Purdue University
Hypothesis
Can an automated device improve the precision of liquid reagent addition in synthetic chemistry?
Conclusion
The automated slow adder successfully delivers liquid reagents with high precision and reproducibility.
Supporting Evidence
- The slow adder can deliver liquid volumes from hundreds of microliters to liters.
- True concurrent addition of multiple liquids can be achieved using multiple slow adders.
- The device was tested with various liquids, showing a delivery time accuracy within 8% of the requested time.
- The slow adder is effective for air-sensitive materials without changing their concentration.
- Calibration factors were determined for accurate delivery of liquids.
Takeaway
This study shows a new machine that helps scientists add liquids very carefully and accurately, making their experiments better.
Methodology
The device uses a computer-controlled solenoid valve to deliver liquid reagents at precise rates, calibrated for accuracy.
Limitations
The device's performance may vary with different liquid viscosities and tubing lengths.
Want to read the original?
Access the complete publication on the publisher's website