Automated Titrations Using Flow Injection Analysis
Author Information
Author(s): Kent K. Stewart, A. Gregory Rosenfeld
Primary Institution: Nutrient Composition Laboratory, Nutrition Institute, Human Nutrition, Science and Education Administration, U.S. Department of Agriculture
Hypothesis
The study investigates the effectiveness of an automated titration system for discrete samples using flow injection analysis.
Conclusion
The automated multiple flow injection analysis (AMFIA) system can efficiently perform titrations at a throughput of 60 samples per hour.
Supporting Evidence
- The AMFIA system demonstrated superior sample dispersion control compared to other methods.
- Standard curves were linear even with larger sample loop volumes.
- The system allows for flexibility in titrant concentration while maintaining rapid sample throughput.
- Automatic feedback control enhances accuracy and precision for varying sample concentrations.
Takeaway
This study shows how a machine can quickly and accurately mix liquids to find out how much of one liquid is needed to neutralize another.
Methodology
The study describes the design and operation of an automated titration system that uses flow injection analysis to handle discrete samples.
Limitations
The study does not specify limitations but notes that the system is designed for routine single endpoint titrations.
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