1 results about "Aqua regia" patented technology

The invention belongs to the field of resource recycling and discloses a method for determining gold-palladium contents in circuit boards of mobile phones. Currently, domestic researches on waste circuit boards mainly focus on metal recycling, and discussions aiming at electronic waste component determination methods are rarely carried out. According to the method, determination is realized by means of aqua regia-perchloric acid-hydrochloric acid high-temperature digestion treatment and inductively coupled plasma-atomic emission spectrometry namely ICP-AES. The method is convenient and quick in determination of the gold-palladium contents in the circuit boards of the mobile phones, short in digestion time, free of valuable equipment, high in determination result reliability and universal in determination of metal contents of different types of electronic wastes.