<b>Determination of trace amounts of zinc by flame atomic absorption spectrometry after separation and preconcentration onto modified natural analcime zeolite loaded 2,3,5,6-tetra(2-pyridyl)pyrazine</b>
Zinc ions were separated by solid phase extraction onto modified natural analcime zeolite loaded with 2,3,5,6-tetra(2-pyridyl)pyrazine (TPPZ). Extraction efficiency and the influence of sample matrix, flow rate, pH, and type and minimum amount of stripping eluent were investigated. Solutions of zinc...
Main Authors: | , , |
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Format: | Article |
Language: | English |
Published: |
Chemical Society of Ethiopia
2010-04-01
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Series: | Bulletin of the Chemical Society of Ethiopia |
Subjects: | |
Online Access: | http://ajol.info/index.php/bcse/article/view/52971 |