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Updated: Sep 20, 2026

Thermochemical Studies of Ni(II) and Zn(II) Ternary Complexes Using Ion Mobility-Mass Spectrometry
Published on: June 8, 2022
[Application of wavelet translation-PLS to simultaneous determination of Co, Ni and Zn]
Li-li Chen1, Ji-hong Jin, Sun-wei Qin
1Faculty of Material Science and Chemical Engineering, China University of Geoscience, Wuhan 430074, China.
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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