A review on applications of wavelet transform techniques in chemical analysis: 1989-1997

Starting from 1989, a new mathematical technique known as wavelet transform (WT) has been applied successfully for signal processing in chemistry. The number of publications related to the application of WT to manipulate chem ical data has increased rapidly in the last 2 years from one paper being pu blished in 1989 to 18 papers in 1996 and 41 papers in 1997. More than 70 pa pers were published within the period from 1989 to 1997. In these published works, WT was mainly employed for noise removal and data compression in di fferent fields of analytical chemistry that include flow injection analysis , high performance liquid chromatography, infrared spectrometry, mass spect rometry, nuclear magnetic resonance spectrometry, ultraviolet-visible spect rometry and voltammetry. It has been employed to solve certain problems in quantum chemistry and chemical physics. In this paper, applications of the wavelet transform and its derivative wavelet packet transform (WPT) are rev iewed. Research works on WT by Chinese researchers in China are also includ ed. (C) 1998 Elsevier Science B.V. All rights reserved.