引用本文:
Xin An LIU, Le Ming SHI, Zhi Hong XU, Zhong, Xiao PAN, Zhi Liang LI, Ying GAO. PARTIAL LEAST-SQUARES (PLS) REGRESSION AND SPECTROPHOTOMETRY AS APPLIED TO THE ANALYSIS OF MULTICOMPONENT MIXTURES[J]. Chinese Chemical Letters,
1991, 2(3): 233-236.
Citation: Xin An LIU, Le Ming SHI, Zhi Hong XU, Zhong, Xiao PAN, Zhi Liang LI, Ying GAO. PARTIAL LEAST-SQUARES (PLS) REGRESSION AND SPECTROPHOTOMETRY AS APPLIED TO THE ANALYSIS OF MULTICOMPONENT MIXTURES[J]. Chinese Chemical Letters, 1991, 2(3): 233-236.
Citation: Xin An LIU, Le Ming SHI, Zhi Hong XU, Zhong, Xiao PAN, Zhi Liang LI, Ying GAO. PARTIAL LEAST-SQUARES (PLS) REGRESSION AND SPECTROPHOTOMETRY AS APPLIED TO THE ANALYSIS OF MULTICOMPONENT MIXTURES[J]. Chinese Chemical Letters, 1991, 2(3): 233-236.
PARTIAL LEAST-SQUARES (PLS) REGRESSION AND SPECTROPHOTOMETRY AS APPLIED TO THE ANALYSIS OF MULTICOMPONENT MIXTURES
摘要:
The UV absorption spectra of α-naphthol, α-naphthylamine, 2, 7-dihydroxy naphthalene, 2, 4-dimethoxy ben-zaldehyde and methyl salicylate, overlap severely;therefore it is impossible to determine them in mixtures by traditional spectrophotometric methods. In this paper, the partial least-squares (PLS) regression is applied to the simultaneous determination of these compounds in mixtures by UV spectrophtometry without any pretreatment of the samples. Ten synthetic mixture samples are analyzed by the proposed method. The mean recoveries are 99.4%, 99.6%, 100.2%, 99.3% and 99.1%, and the relative standard deviations (RSD) are 1.87%, 1.98%, 1.94%, 0.960% and 0.672%, respectively.
English
PARTIAL LEAST-SQUARES (PLS) REGRESSION AND SPECTROPHOTOMETRY AS APPLIED TO THE ANALYSIS OF MULTICOMPONENT MIXTURES
Abstract:
The UV absorption spectra of α-naphthol, α-naphthylamine, 2, 7-dihydroxy naphthalene, 2, 4-dimethoxy ben-zaldehyde and methyl salicylate, overlap severely;therefore it is impossible to determine them in mixtures by traditional spectrophotometric methods. In this paper, the partial least-squares (PLS) regression is applied to the simultaneous determination of these compounds in mixtures by UV spectrophtometry without any pretreatment of the samples. Ten synthetic mixture samples are analyzed by the proposed method. The mean recoveries are 99.4%, 99.6%, 100.2%, 99.3% and 99.1%, and the relative standard deviations (RSD) are 1.87%, 1.98%, 1.94%, 0.960% and 0.672%, respectively.
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