Homemade Autosampler for Water Analysis
Author Information
Author(s): Eduardo Costa de Figueiredo, Leandro Ruela de Souza, Cristiana Schmidt de Magalhães, Celio Wisniewski, Pedro Orival Luccas
Primary Institution: Universidade Federal de Alfenas (UNIFAL-MG)
Hypothesis
The study aims to build an automated autosampler/injector commutator for flow injection analysis using simple electronic components.
Conclusion
The autosampler and injector commutator presented satisfactory results with low cost and easy operation.
Supporting Evidence
- The autosampler allows the analysis of 8 samples sequentially.
- The system was tested for phosphate determination in water.
- The linear correlation coefficient for the analytical curve was R = 0.9937.
- The relative standard deviation of measurements was always lower than 1.4%.
- The approximate cost of the components used was 50 dollars.
Takeaway
The researchers built a simple and cheap device to help analyze water samples automatically.
Methodology
The device was constructed using salvaged electronic components and controlled by a computer program written in Visual Basic.
Limitations
The study does not specify limitations but mentions the use of scrap components.
Digital Object Identifier (DOI)
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