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[Analytical performance of CID-ICP-AES for alkaline-earth elements]
1Institute of Nuclear Energy Technology, Tsinghua University, Beijing 100084, China.
Guang Pu Xue Yu Guang Pu Fen Xi = Guang Pu
|March 16, 2005
Summary
The Charge Injection Device (CID) coupled with ICP-AES offers excellent analytical performance for alkaline-earth elements, achieving low detection limits and high photometric precision.
Area of Science:
- Analytical Chemistry
- Spectroscopy
Context:
- Inductively Coupled Plasma Atomic Emission Spectrometry (ICP-AES) is a widely used technique for elemental analysis.
- Charge Injection Device (CID) technology offers potential advantages in detector performance.
Purpose:
- To evaluate the analytical performance of a plasma spectrometer utilizing a Charge Injection Device (CID) and echell grating for alkaline-earth elements.
- To determine detection limits, self-absorption coefficients, linear ranges, and photometric precision for Ca, Be, Sr, Ba, and Mg.
Summary:
- The CID-ICP-AES system demonstrated excellent analytical performance for alkaline-earth elements.
- Achieved detection limits as low as 0.00003 mg/L for Ca and 0.0002 mg/L for Be, Sr, and Ba.
- Exhibited self-absorption coefficients <1, wide linear ranges (10^4-10^5), and high photometric precision (RSD=1% at <1 mg/L).
Impact:
- Provides valuable performance data for CID-ICP-AES in elemental analysis.
- Highlights the suitability of this technique for sensitive determination of alkaline-earth metals.
- Contributes to the advancement of spectroscopic analytical methods.