The application of frequency and amplitude response spectroscopy analyzing

This paper presented and discussed a new electrochemical analysis method FARSA (frequency and amplitude response spectroscopy analyzing), which can be applied to qualitatively and quantitatively analyze material´s properties and concentration with certain methods of chemometrics, and introduced the system and functional structure of FARSA. Principal component analysis (PCA) was used to the identification and authenticity of identification of four brands of purified drinking water and three brands of mineral drinking water. The results showed that it can clearly classify different brands of water and the pseudo-sample. Additionally, a quantitative method based on LM-BP artificial neural nets was used to detect the COD concentration of wastewater with a good fitting and forecast accuracy.