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A software system for dispersive atomic fluorescence spectrometry based on UV digital micromirror device
Hongxia Wang1, Wenyu Jiang1, Ke Liu2
1College of Instrumentation & Electrical Engineering, Jilin University, 938 Ximinzhu Avenue, Changchun 130061, People's Republic of China.
The Review of Scientific Instruments
|December 2, 2021
Summary
A new software for UV-DMD-AFS instruments automates analysis and reduces spectral/scattering interference. This enables accurate trace heavy metal detection, as shown by precise arsenic measurement in water.
Area of Science:
- Analytical Chemistry
- Spectroscopy
- Instrument Automation
Background:
- Spectral and scattering interferences challenge atomic fluorescence spectrometry.
- Automation is crucial for novel instruments like the UV-DMD-AFS.
Purpose of the Study:
- Develop user-friendly software for a UV-DMD-AFS instrument.
- Enable automated control, data acquisition, and real-time interference reduction.
Main Methods:
- C# programming with multi-threading and SQLite database integration.
- Implementing component control, data acquisition, and wavelength initialization modules.
- Utilizing non-interference wavelengths and real-time proportional coefficients for interference mitigation.
Main Results:
- Successfully automated UV-DMD-AFS operation and sample analysis.
- Achieved real-time spectral and scattering interference reduction via software control.
- Validated software accuracy by detecting arsenic in water with a 0.02 ng/mL deviation.
Conclusions:
- The developed software is practical for accurate trace heavy metal analysis using UV-DMD-AFS.
- Real-time interference reduction is key to precise measurements.
- Software automation enhances the utility of advanced spectroscopic instruments.
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