Simultaneous determination of trace metal ions in industrial wastewater based on UV–vis spectrometry
作者： Fengbo Zhou , Changgeng Li , Hongqiu Zhu , Yonggang Li
DOI: 10.1016/J.IJLEO.2018.09.075
关键词:
摘要: Abstract A novel method combining with continuous wavelet transform and ratio spectra derivative is proposed for simultaneous determination of copper, cobalt nickel in industrial wastewater by UV–vis spectrometry, without separation step. The calculation (CWT) using Haar function found suitable noisy signals. value measured at zero-crossing wavelength. linear ranges calibration graphs are up to 3 mg /L nickel. root mean squared error prediction (RMSEP) 0.073, 0.064 0.131, respectively. relative deviations all less than 5%. results indicate that the rapid, inexpensive, more accurate partial least square method. Therefore, it analyzing overlapping their mixtures.
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