Solenoid pumps for flow injection analysis

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Weeks, D. , A., & Johnson, K. , S. (1996). Solenoid pumps for flow injection analysis. International Journal of Computer Vision, 18(3), 2717-2719.
TitleSolenoid pumps for flow injection analysis
AuthorsD. Weeks, K. Johnson
AbstractMethods employing flow injection analysis (FIA), particularly for in situ seawater techniques, would benefit from reduction in pump size and power requirement, longer maintenance intervals, and the ability to incorporate microprocessor control of each reagent and sample flow stream. In this work, the peristaltic pump of a conventional FIA system was replaced by three solenoid-driven diaphragm pumps with integral Viton check valves, and the system was tested by performing the simple nitrile analysis, which has well-defined FIA performance characteristics. Sixty injections per hour were possible with flow rates of 0.5 mL/min for reagents and sample. The coefficient of variation was 1% for 10μM NO2- concentrations, and the detection limit was less than 0.1μM NO2-. These values match the reported performance for this method using peristaltic pumps.
JournalInternational Journal of Computer Vision
Start page2717
End page2719
SubjectsAnalytic equipment, Chemical analysis, Flow of fluids, Solenoids, Coefficient variation, Flow injection analysis, Peristaltic pumps, Solenoid pumps, Pumps