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Published on: May 16, 2019
A new type of Zeeman-effect atomic-absorption spectrophotometer
J Shi-Lian1, L Shao-Yuan, W Rong-Rong
1Technology Laboratory, Institute of Environmental Chemistry, Academia Sinica, Beijing, People's Republic of China.
Talanta
|August 1, 1987
Summary
A novel Zeeman-effect atomic-absorption spectrophotometer offers improved analysis of refractory and rare-earth elements. Its advanced atomizer and background correction capabilities enhance accuracy for challenging samples.
Area of Science:
- Analytical Chemistry
- Spectroscopy
Background:
- Accurate determination of refractory and rare-earth elements is challenging.
- Traditional atomic absorption spectrophotometry struggles with background noise.
Purpose of the Study:
- To develop a new Zeeman-effect atomic-absorption spectrophotometer.
- To improve the determination of refractory and rare-earth elements.
- To enhance background correction capabilities.
Main Methods:
- Utilized a pyro-coated graphite tube atomizer lined with tungsten-tantalum alloy.
- Implemented fast heating for rapid atomization.
- Employed a boxcar integrator for signal processing.
- Applied the Zeeman effect for background correction.
Main Results:
- Successfully developed a new Zeeman-effect atomic-absorption spectrophotometer.
- Demonstrated easier determination of refractory and rare-earth elements.
- Achieved background absorbance correction up to 2.0 using the Zeeman effect.
- Enabled simultaneous recording of atomic absorption, background absorption, and atomization temperature.
Conclusions:
- The new spectrophotometer facilitates the analysis of difficult elements.
- The instrument provides robust background correction for improved accuracy.
- This advancement offers a valuable tool for elemental analysis.
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