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  • Title: [Application of wavelet translation-PLS to simultaneous determination of Co, Ni and Zn].
    Author: Chen LL, Jin JH, Qin SW.
    Journal: Guang Pu Xue Yu Guang Pu Fen Xi; 2003 Jun; 23(3):597-9. PubMed ID: 12953552.
    Abstract:
    The optimum conditions of the colour reaction of Cobalt, Nickel and Zinc with 5-Br-PADAP were established in the presence of the sensitizer/solubilizer CPB. The absorbances of the reaction system Co-Ni-Zn- (5-Br-PADAP) -CPB were measured in the spectral range of 530-590 nm at every 2 nm intervals. A chemometric method of data treatment was studied. Through the comparative study of data treatment by PLS method and by PLS after wavelet transformation, it was found that the recovery of determination is significantly improved by using the latter method.
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