1. Chemistry Department, Faculty of Science King Khalid University P.O. Box 9004 Abha 61413 Saudi Arabia
2. Chemistry Department, Faculty of Science University of Jeddah Jeddah Saudi Arabia
3. Department of Pharmaceutical Analytical Chemistry, Faculty of Pharmacy Al‐Azhar University, Assiut Branch Assiut 71524 Egypt
4. Chemistry Department, Faculty of Science King Abdulaziz University P.O. Box 80203 Jeddah Saudi Arabia
5. Dyeing, Printing and Textile Auxiliaries Department, Textile Research and Technology Institute National Research Centre 33 EL Buhouth St., Dokki Giza 12622 Egypt