Single‐well Potential Stochastic Resonance Applied to Quantitative Analysis for Weak Chromatographic Signals of Sudan IV

Abstract The single‐well potential stochastic resonance algorithm is applied to enhance signal‐to‐noise ratio of chromatographic signals for trace analysis. Compared with the bistable well potential system, the single‐well simplifies the algorithm since only one system parameter is involved and optimized. Using the signals enhanced by single‐well potential stochastic resonance, the method extended the limit of detection and the limit of quantification of Sudan IV from 0.03 and 0.1 µg/ml to 0.008 and 0.02 µg/ml respectively, and exhibited good linearity, accuracy, and precision, which ensure an accurate determination of the analyte.

[1]  Weimin Guo,et al.  A new stochastic resonance algorithm to improve the detection limits for trace analysis , 2003 .

[2]  Haishan Deng,et al.  A linear modulation-based stochastic resonance algorithm applied to the detection of weak chromatographic peaks , 2006, Analytical and bioanalytical chemistry.

[3]  Zhang Wei,et al.  A new single-well potential stochastic resonance algorithm to detect the weak signal. , 2006, Talanta.

[4]  S. Kay,et al.  Can detectability be improved by adding noise? , 2000, IEEE Signal Processing Letters.

[5]  Carlos D. Garcia,et al.  Determination of banned sudan dyes in chili powder by capillary electrophoresis , 2007 .

[6]  Haishan Deng,et al.  Periodic modulation-based stochastic resonance algorithm applied to quantitative analysis for weak liquid chromatography–mass spectrometry signal of granisetron in plasma , 2007 .

[7]  K. Chung,et al.  The significance of azo-reduction in the mutagenesis and carcinogenesis of azo dyes. , 1983, Mutation research.

[8]  F. Iemma,et al.  Molecularly imprinted solid phase extraction for detection of sudan I in food matrices , 2005 .

[9]  Ming Ma,et al.  Simultaneous determination of water-soluble and fat-soluble synthetic colorants in foodstuff by high-performance liquid chromatography-diode array detection-electrospray mass spectrometry. , 2006, Journal of chromatography. A.

[10]  B. Kosko,et al.  Adaptive stochastic resonance , 1998, Proc. IEEE.

[11]  L. Elviri,et al.  Development and in-house validation of a liquid chromatography-electrospray-tandem mass spectrometry method for the simultaneous determination of Sudan I, Sudan II, Sudan III and Sudan IV in hot chilli products. , 2004, Journal of chromatography. A.

[12]  Yantu Zhang,et al.  Development and optimization of an analytical method for the determination of Sudan dyes in hot chilli pepper by high-performance liquid chromatography with on-line electrogenerated BrO- -luminol chemiluminescence detection. , 2006, Journal of chromatography. A.

[13]  Joris Van Loco,et al.  Development of a fast analytical method for the determination of sudan dyes in chili- and curry-containing foodstuffs by high-performance liquid chromatography-photodiode array detection. , 2006, Journal of agricultural and food chemistry.

[14]  Xiaogang Han,et al.  Determination of Sudan I in hot chili powder by using an activated glassy carbon electrode , 2007 .

[15]  L. Elviri,et al.  Accurate mass measurements for the confirmation of Sudan azo-dyes in hot chilli products by capillary liquid chromatography-electrospray tandem quadrupole orthogonal-acceleration time of flight mass spectrometry. , 2004, Journal of chromatography. A.

[16]  Ditzinger,et al.  Resonancelike responses of autonomous nonlinear systems to white noise. , 1994, Physical review. E, Statistical physics, plasmas, fluids, and related interdisciplinary topics.

[17]  Gregoire Nicolis,et al.  Stochastic resonance , 2007, Scholarpedia.

[18]  Nigel G. Stocks,et al.  STOCHASTIC RESONANCE IN MONOSTABLE SYSTEMS , 1993 .

[19]  Haishan Deng,et al.  Improved stochastic resonance algorithm for enhancement of signal-to-noise ratio of high-performance liquid chromatographic signal. , 2007, Analytica chimica acta.

[20]  G. Sindona,et al.  Assay of Sudan I contamination of foodstuff by atmospheric pressure chemical ionization tandem mass spectrometry and isotope dilution. , 2004, Analytical chemistry.