أرسل هذا في رسالة قصيرة: Adsorption isotherm models and error analysis for single and binary adsorption of Cd(II) and Zn(II) using leonardite as adsorbent

 _    _     ______   __   _      ___     __   __  
| || | ||  /_   _// | || | ||   / _ \\   \ \\/ // 
| || | ||   -| ||-  | '--' ||  | / \ ||   \   //  
| \\_/ ||   _| ||_  | .--. ||  | \_/ ||   / . \\  
 \____//   /_____// |_|| |_||   \___//   /_//\_\\ 
  `---`    `-----`  `-`  `-`    `---`    `-`  --`