أرسل هذا في رسالة قصيرة: Development of Polystirene Divynilbenzene-1-(2-pyridylazo)-2-naphtol Modified Carbon Paste Electrode for Voltammetric Analysis of Pb(II) Ion

  ______     ___     _____     __   __    ______  
 /_   _//   / _ \\  |  __ \\   \ \\/ //  /_   _// 
 `-| |,-   / //\ \\ | |  \ ||   \ ` //   `-| |,-  
   | ||   |  ___  ||| |__/ ||    | ||      | ||   
   |_||   |_||  |_|||_____//     |_||      |_||   
   `-`'   `-`   `-`  -----`      `-`'      `-`'