Selective masking and demasking for the stepwise complexometric determination of aluminium, lead and zinc from the same solution
2008
New Method for Measuring Aluminium, Lead, and Zinc in Glass
publication
Evidence: high
Author Information
Author(s): Kayal Nijhuma, Singh Nahar
Primary Institution: Central Glass and Ceramic Research Institute
Hypothesis
Can a complexometric method using selective masking and demasking accurately determine aluminium, lead, and zinc from the same solution?
Conclusion
The proposed method is simple and accurate for determining aluminium, lead, and zinc in glass and glass frit samples without the need for prior separation.
Supporting Evidence
- The method was validated using certified reference material with a standard deviation of less than 1.5%.
- Results from the proposed method showed good agreement with existing methods for determining aluminium, lead, and zinc.
- The method allows for the analysis of multiple metals from a single sample without complex separation processes.
Takeaway
This study created a new way to measure three metals in glass without needing to separate them first, making it faster and easier.
Methodology
The method involves using potassium cyanide to mask zinc and EDTA to mask lead and aluminium, followed by selective de-masking to determine each metal.
Digital Object Identifier (DOI)
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