化学学报 ›› 2000, Vol. 58 ›› Issue (4): 427-431. 上一篇    下一篇

研究论文

奇异值分解-最小二乘法解析去甲肾上腺素的圆二色谱

朱永春;吕玉娟;程广金;董绍俊   

  1. 中国科学院长春应用化学研究所.长春(130022);中国科学院电分析化学开放实 验室
  • 发布日期:2000-04-15

Decomposition of circular dichroisn of norepinephrine by singular value decomposition-least square method

Zhu Yongchun;Lu Yujuan;Cheng Anjin;Dong Shaojun   

  1. Changchun Inst Appl Chem., CAS.Changchun(130022)
  • Published:2000-04-15

提出了一种新的光谱电化学数据处理方法:奇异值分解-最小二乘法(SVDLS)。该方法用于解析在三个氧化还原过程中30个不同电位下的去甲肾上腺素圆二色(CD)光谱,获得去甲肾上腺素,甲肾上腺素醌和去甲肾上腺素红在不同过程中的CD谱及其组分分布曲线,很好地解释了去甲肾上腺素的氧化还原机理和相应的CD光谱的变化。

关键词: 奇异值分解, 最小二乘法, 去甲肾上腺素, 圆振二向色性, 氧化还原反应

Singular value decomposition - least squares (SVDLS), a new method for processing the multiple spectra with multiple wavelengths and multiple components in thin layer spectroectrochemistry has been developed. The CD spectra of three components, norepinephrine reduced form of norepinephrinechrome and norepinephrinequinone, and their fraction distributions with applied potential were obtained in three redox processed of norepinephrine from 30 experimental CD spectra, which well explains electrochemical mechanism of norepinephrine as well as the changes in the CD spectrum during the electrochemical processes.

Key words: LEAST SQUARE METHODS, NOREPINEPHRINE, CIRCULAR DICHROISM, OXIDATION REDUCTION REACTION

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