ORIGINAL RESEARCH
Freeze- and Thaw-Based Procedures
for Extracting DNA from Activated Sludge
Kamel Ahmed Abd-Elsalam1,3,4, Ali Hassan Bahkali1,4, Mohamed Abdo Moslem1
Amal A. Al-Hazzani1, Osama Emam Amin1, Abdulaziz Al-Khedhairy2,3
Pol. J. Environ. Stud. 2011;20(3):643-648