أرسل هذا في رسالة قصيرة: In-tip solid-phase microextraction: a method for determination of sulphonamide residues in environmental water samples

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