Subtracting Technique of Baselines for Capillary Electrophoresis Signals  

作　　者：WANGYing MOJin-yuan CHENZuan-guang GAOYan 

机构地区：[1]SchoolofChemistryandChemicalEngineering [2]DepartmentofChemistry,MedicalCollege,ZhongshanUniversity,Guangzhou510275,P.R.China

出　　处：《Chemical Research in Chinese Universities》2004年第2期134-137,共4页高等学校化学研究（英文版）

基　　金：Supported by the National Natural Science Foundation of China(No.2 9975 0 33)

摘　　要：The drifting baselines of capillary electrophoresis affect the veracity of analysis greatly. This paper presents Threshold Fitting Technique(TFT) so as to subtract the baselines from the original signals and emendate the signals. In TFT, wavelet and curve fitting technique are applied synthetically, thresholds are decided by the computer automatically. Many experiments of signal processing indicate that TFT is simple for being used, there are few man-induced factors, and the results are satisfactory. TFT can be applied for noisy signals without any pre-processing.The drifting baselines of capillary electrophoresis affect the veracity of analysis greatly. This paper presents Threshold Fitting Technique(TFT) so as to subtract the baselines from the original signals and emendate the signals. In TFT, wavelet and curve fitting technique are applied synthetically, thresholds are decided by the computer automatically. Many experiments of signal processing indicate that TFT is simple for being used, there are few man-induced factors, and the results are satisfactory. TFT can be applied for noisy signals without any pre-processing.

关 键 词：BASELINE Capillary electrophoresis(CE) Curve fitting WAVELET THRESHOLD 

分 类 号：O647.6[理学—物理化学]