Stochastic resonance algorithm for enhancement of signal-to-noise ratio of HPLC/MS signal
Based on the theory of stochastic resonance, a new method was presented to enhance signal-to-noise ratio (SNR) of HPLC/MS signal for trace analysis with a new optimization method of the system parameters. The method was applied to experimental weak signals of HPLC/MS, which was embedded in the noise background and the SNR was enhanced greatly. The LOD and LOQ were improved from 10 ng/ml and 25 ng/ml to 2 ng/ml and 5 ng/ml, respectively. The results showed an excellent quantitative relationship between concentrations and chromatographic responses.
Chang-Yun Chen Shao-Fei Xie Hai-Shan Deng Bing-Ren Xiang
Department of Chemistry, Nanjing Xiaozhuang University Nanjing 211171, P.R.China Guangzhou Institute for Drug Control 23 Xizeng Road, Guangzhou 510160 ,P.R.China Center for Instrumental Analysis, China Pharmaceutical University Nanjing 210009, P.R.China
国际会议
成都
英文
1-3
2010-06-18(万方平台首次上网日期,不代表论文的发表时间)