Sample introduction valve used in ICP-AES for faster analysis
1989
Improving Sample Introduction in ICP-AES
Sample size: 600
publication
Evidence: moderate
Author Information
Author(s): Helge Stray
Primary Institution: Agricultural Service Laboratory
Hypothesis
Using a twin six-port valve can enhance the sample introduction process in ICP-AES.
Conclusion
The new valve system significantly reduces washout time and increases the hourly sampling rate in ICP-AES.
Supporting Evidence
- The valve system reduced washout time by 20 seconds per analysis.
- The hourly sampling rate increased from 90 to 180 samples.
- Precision of the analysis was comparable to traditional methods.
- Carry-over was less than 0.46% for all elements analyzed.
Takeaway
This study shows that a special valve can help scientists analyze samples faster and more efficiently.
Methodology
A twin six-port valve was installed to improve the sample introduction process in ICP-AES, allowing for quicker analysis.
Limitations
The study did not explore the performance of the valve system with exposure times exceeding 20 seconds.
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