[Digital signal acquisition and processing software for atomic fluorescence spectrometry and its application to elemental speciation].
A program was developed to collect and process digital signal by using Visual C++ for atomic fluorescence spectrometry (AFS). The software solves the data acquisition problem of coupling AFS with HPLC and other successive separation techniques. This program employs three signal processing techniques, i.e. Savitzky-Golay smoothing, Fourier filter and wavelet denoising, to smooth and filter the noisy data. The processes and comparisons of these techniques have been discussed. The program was successfully applied to the preliminary study of Cd speciation by using cation exchange HPLC coupled to AFS, and will provide a new possibility for extending the application of atomic fluorescence spectrometry to the field of elemental speciation analysis.
Hong
Yu-chen
YC
Department of Chemistry, MOE Key Laboratory of Analytical Sciences, Xiamen University, Xiamen 361005, China.
Wang
Qiu-quan
QQ
Yan
Hua
H
Liang
Jing
J
Guo
Xu-ming
XM
Huang
Ben-li
BL
D002104:Cadmium / Q000032:analysis; D002851:Chromatography, High Pressure Liquid / Q000379:methods*; D005583:Fourier Analysis; D012815:Signal Processing, Computer-Assisted; D012984:Software; D013050:Spectrometry, Fluorescence / Q000379:methods*; D013054:Spectrophotometry, Atomic / Q000379:methods*
D002104:Cadmium