Determination of disperse elemtns in black shale by inductively coupled plasma mass spectrometry

摘要

The elements Se, Te, Ge, Re are easily evaporated out when HClO_4, HNO_3, HNO_3, HF are used as the open digestion method. There is a great amount of organic and inorganic carbon in black shale, so it is necessary to use oxide acid (HClO_4, HNO_3) to digest the samples, and the Cl will interfere the determination of Se and Ge. In this note we reported a simple digestion method for black shale.