Abstract − Analytical Sciences, 17(12), 1461 (2001).
Simultaneous Determination of Phosphate and Silicate by First-Derivative Spectrophotometry
Abdel-Aziz Y. EL-SAYED,* Yehia Z. HUSSEIN,** and Montaser A. MOHAMMED**
*Department of Chemistry, Faculty of Science, Al-Azhar University, Assiut, Egypt
**Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
**Department of Chemistry, Faculty of Science, Al-Azhar University, Cairo, Egypt
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