Nonlinear Kalman filter simultaneous determination of mixture of phenol and 2-chlorophenol

作者：Wang Q^*; Ma PS; Tang HM; Jia QZ

来源：Spectroscopy and Spectral Analysis, 2006, 26(5): 899-903.

• nonlinear absorbance
• extended Kalman filter
• UV spectrophotometric method
• simultaneous deternination
• phenol
• 2-chlorophenol

An analysis method of nonlinear absorbance for binary composition mixture was proposed. The nonlinear absorbance was composed of the contributions from both themselves and the change in their contributions due to mixing, as well as the contribution from their interaction. The mixture of Phenol and 2-chlorophenol was simultaneously determined using nonlinear Kalman filter UV spectrophotometry. UV absorption spectra were obtained with 32 standard solutions (range 1-15 mg center dot L-1) and 71 wavelengths (250-290 nm). Standard work matrix of extended Kalman filter was performed from partial least-squares method. The vectors function Jacobi matrix was obtained by linearization of Taylor series for nonlinear absorbance formula. The recovery experiment showed that the extended Kalman filter simultaneous determination of mixture of phenol and 2-chlorophenol that is not only exact, but also stable.

• 出版日期2006-5
• 单位天津大学