Automated Titration and Standard Addition in Flow Analysis
Author Information
Author(s): Margarete Assali, Ivo M. Raimundo Jr, Ileana Facchin
Primary Institution: Instituto de Química, UNICAMP
Hypothesis
Can simultaneous multiple injection improve titration and standard addition methods in monosegmented flow analysis?
Conclusion
The simultaneous multiple injection approach is a feasible alternative for implementing titration and standard addition procedures in flow analysis.
Supporting Evidence
- The results from the automated system did not differ significantly from manual methods.
- The system allows for high sample throughput with low reagent consumption.
- Calibration of the system is necessary to ensure accurate measurements.
Takeaway
This study shows a new way to mix liquids automatically to measure things like iron and chromium in water and medicine, making it faster and easier.
Methodology
An automated system using a diode array spectrophotometer and a three-way solenoid valve to perform titration and standard addition.
Potential Biases
Potential biases from sample preparation and measurement conditions.
Limitations
Matrix effects can alter results due to sample dilution and differences in sensitivities.
Statistical Information
Confidence Interval
95%
Statistical Significance
p<0.05
Digital Object Identifier (DOI)
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