Laser-induced Breakdown Spectroscopy and its Applications in Elemental Analysis

Laser induced breakdown spectroscopy(LIBS) is a new method for elemental analysis,but it is still in the progress of improvement.It can be used to analyze samples in various states as a very useful composition and trace element analysis technique.In the present paper,the basic principles of LIBS is described,and applications of LIBS in elemental analysis in various fields are introduced for gaseous,solid state,and liquid state samples,and in trace element analysis,depth profile,etc.Factors which affect the results of LIBS,such as matrix effect,self-absorption effect,collecting time,ambient environment,and laser pulse parameters,etc,are discussed,respectively.