Discrete and continuous wavelet transforms for the multicomponent determination of sunset Yellow and tartrazine in their soft drink powders

DİNÇ E., Baleanu D., Ustundag Ö., Aboul-Enein H.

REVISTA DE CHIMIE, cilt.57, sa.1, ss.29-35, 2006 (SCI-Expanded) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 57 Sayı: 1
  • Basım Tarihi: 2006
  • Dergi Adı: REVISTA DE CHIMIE
  • Derginin Tarandığı İndeksler: Science Citation Index Expanded (SCI-EXPANDED), Scopus
  • Sayfa Sayıları: ss.29-35
  • Anahtar Kelimeler: discrete and continuous wavelet transform, simultaneous signal analysis, sunset Yellow, tartrazine, soft drink powder, SIMULTANEOUS SPECTROPHOTOMETRIC DETERMINATION, PARTIAL LEAST-SQUARES, ALLURA RED, CONTINUOUS DAUBECHIES, PONCEAU 4R, CALIBRATION, MIXTURES, DYES
  • Ankara Üniversitesi Adresli: Evet

Özet

The multicomponent quantitative resolution of the binary mixtures containing, sunset Yellow (SN) and tartrazine (TR) without any pre-chemical treatment, in the presence of the overlapping signals was accomplished by the simultaneous use of the discrete and the continuous wavelet transform (CWT) followed by a zero crossing technique. We propose G transformation approach of signals in wavelet domain, based on both one-dimensional CWT and zero-crossing technique for obtaining a higher resolution of the binary mixtures. The application of this approach contains three steps: firstly, UV-recorded spectra were transferred into the wavelet domain and were subject to the one-dimensional discrete wavelet transform for obtaining an appropriated de-noising signal; secondly, CWT was applied on the de-noising signal and a new transformed signal was obtained so that it contains many zero-crossing points and higher peaks.; thirdly, a zero-crossing technique was applied to the transformed signal obtained in step two, The calibration graphs were drawn by choosing a one-dimensional continuous family, namely, Symlets2 (SYM2) and Gauss3 (GAUS3) followed by a zero-crossing technique. The quantitative analysis of the commercial product containing the above colorants was carried out by using this approach and successful results were obtained.