Inductively coupled plasma atomic emission spectroscopy (ICP-AES) is very sensitive technique in emission spectroscopy that measures the mass percentage of the metals in the metal/polymer nanocomposites by exciting its metal atoms/ions by using a plasma and analyzing the emission wavelength of the electromagnetic radiation. - Standard. 3600 line grating: (190 nm ~ 500) nm; 2400 line grating: (190 nm ~ 800) nm