發送短信 : Determination of some heavy metals in human hair by ultrasonic acid digestion and atomic absorption spectrophotometry

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