Construction and evaluation of an automated flow injection-stopped flow analyser for multipoint reaction rate spectrophotometric methods. Determination of ammonia nitrogen, creatinine and phosphate
1991

Automated Flow Injection-Stopped Flow Analyser for Reaction Rate Measurements

publication Evidence: moderate

Author Information

Author(s): Constantinos A. Georgiou, Michael A. Koupparis

Primary Institution: University of Athens

Hypothesis

The FI-SF analyser can improve the accuracy and precision of kinetic determinations in routine analysis.

Conclusion

The FI-SF analyser is suitable for multipoint spectrophotometric kinetic determinations, offering improved flexibility and throughput compared to traditional methods.

Supporting Evidence

  • The FI-SF analyser allows for multipoint measurements, increasing precision and accuracy.
  • Measurement throughput for ammonia nitrogen, creatinine, and phosphate was found to be 50, 67, and 114 per hour, respectively.
  • The study demonstrated that the FI-SF technique can effectively minimize background signals in spectrophotometric determinations.

Takeaway

This study created a machine that can quickly and accurately measure chemical reactions, helping scientists analyze things like ammonia and creatinine in samples.

Methodology

The study involved constructing an automated FI-SF analyser and evaluating its performance using kinetic spectrophotometric methods for ammonia nitrogen, creatinine, and phosphate.

Limitations

The FI-SF technique may not be suitable for very fast reactions due to its mixing and equilibration times.

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