Ultra-trace level detection of arsenic and selenium using a commercially available hydride generator with atomic-absorption detection
1983
Detection of Arsenic and Selenium Using Hydride Generation
publication
Evidence: moderate
Author Information
Author(s): R. W. Ward, P. B. Stockwell
Primary Institution: RF Plasma Products, Inc.
Hypothesis
The study investigates the efficiency of a continuous-flow hydride generator for the detection of arsenic and selenium.
Conclusion
The Plasma-Therm hydride generator is efficient, allowing rapid, precise, and sensitive analysis of arsenic and selenium.
Supporting Evidence
- The system allows for large sample throughputs and reduces the amount of solution required for analysis.
- Detection limits were found to be 0.04 ng/ml for arsenic and 0.07 ng/ml for selenium.
- The technique showed better precision than manual injection methods.
Takeaway
This study shows a new machine that helps scientists find tiny amounts of arsenic and selenium in samples quickly and easily.
Methodology
The study used a continuous-flow hydride generator to analyze samples for arsenic and selenium, measuring the efficiency and detection limits.
Limitations
The linear ranges for detection were short, which is a disadvantage of the method.
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