A review of the application of high performance liquid chromatography (HPLC) to inorganic analysis is presented.

However, its application in metal extraction and preconcentration has been much less extensive, although the capabilities of the technique in inorganic analysis also appear to be very promising.

At present, the study and application of the triazene reagents have extended from the domain of traditional inorganic analysis to the life active substance and environment contamination analysis.