The stochastic resonance algorithm with the direct current signal as external force and its application to the detection of weak chromatographic peaks. Issue 20 (13th September 2017)

• Record Type: Journal Article
• Authors: Li, Rui; Xiang, Bingren; Deng, Haishan; Xie, Shaofei
• Is Part Of: Journal of separation science. Volume 40:Issue 20(2017)
• Page Start: 4091
• Page End: 4096
• Publication Date: 2017-09-13
• Subjects: alkaloids -- menthol -- stochastic resonance algorithm -- weak chromatographic peaks; Separation (Technology) -- Periodicals; Chromatographic analysis -- Periodicals; 543.089
• DOI: 10.1002/jssc.201700404
• Languages: English
• ISSNs: 1615-9306

Abstract

Abstract: As a potential tool for amplifying weak chromatographic peaks, the stochastic resonance algorithm was developed based upon a counterintuitive physical phenomenon. Therefore, the essential step, parameter optimization, was perplexing and difficult for analysts. In order to avoid optimizing the system parameters on a case‐by‐case basis, an improved algorithm was proposed by introducing a constant or direct current signal into the signal to be measured as the external force. The weak chromatographic peak can be amplified and detected by the new algorithm using the same set of parameters. Two sets of our previous experimental data were reanalyzed by using the developed algorithm and the results were satisfactory. A generalized solution was expected to come into being on account of the new algorithm.