The Experts below are selected from a list of 276 Experts worldwide ranked by ideXlab platform

Su-qin Sun - One of the best experts on this subject based on the ideXlab platform.

  • Analysis of Chuanxiong Rhizoma and its active components by Fourier transform Infrared Spectroscopy combined with two-dimensional correlation Infrared Spectroscopy.
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2016
    Co-Authors: Yizhen Guo, Jingjuan Wang, Yang Liu, Su-qin Sun, Yao Xiao, Li Xiang, Yanfang Yang
    Abstract:

    As complicated mixture systems, active components of Chuanxiong Rhizoma are very difficult to identify and discriminate. In this paper, the macroscopic IR fingerprint method including Fourier transform Infrared Spectroscopy (FT-IR), the second derivative Infrared Spectroscopy (SD-IR) and two-dimensional correlation Infrared Spectroscopy (2DCOS-IR), was applied to study and identify Chuanxiong raw materials and its different segmented production of HPD-100 macroporous resin. Chuanxiong Rhizoma is rich in sucrose. In the FT-IR spectra, water eluate is more similar to sucrose than the powder and the decoction. Their second derivative spectra amplified the differences and revealed the potentially characteristic IR absorption bands and combined with the correlation coefficient, concluding that 50% ethanol eluate had more ligustilide than other eluates. Finally, it can be found from 2DCOS-IR spectra that proteins were extracted by ethanol from Chuanxiong decoction by HPD-100 macroporous resin. It was demonstrated that the above three-step Infrared Spectroscopy could be applicable for quick, non-destructive and effective analysis and identification of very complicated and similar mixture systems of traditional Chinese medicines.

  • Discrimination of different genuine Danshen and their extracts by Fourier transform Infrared Spectroscopy combined with two-dimensional correlation Infrared Spectroscopy.
    Spectrochimica acta. Part A Molecular and biomolecular spectroscopy, 2012
    Co-Authors: Xin-hu Liu, Su-qin Sun, Jian Huang, Ke Zhang, Yun Zhu, Qun Zhou, Zhi-cheng Zhang, Jinhui Wang
    Abstract:

    Abstract In this study, six varieties of Danshen from different populations and genuine (“Daodi” in Chinese transliteration) regions were discriminated and identified by a three-step Infrared Spectroscopy method (Fourier transform-Infrared Spectroscopy (FT-IR) coupled with second derivative Infrared Spectroscopy (SD-IR) and two dimensional correlation Infrared Spectroscopy (2D-IR)). Though only small differences were found among the FT-IR spectra of the six Danshen samples, the positions and intensities of peaks at 3393, 3371, 1613, 1050, and 1036 cm −1 could be considered as the key factors to discriminate them. More significant differences were exhibited in their SD-IR, particularly for the peaks around 1080, 1144, 695, 665, 800, 1610, 1510, 1450, 1117 and 1077 cm −1 . The visual 2D-IR spectra provided dynamic chemical structure information of the six Danshen samples with presenting different particular auto-peak clusters, respectively. Moreover, the contents of salvianolic acid B in all samples were measured quantitatively by a validated ultra performance liquid chromatography (UPLC), which was consistent with the FT-IR findings. This study provides a promising method for characteristics and quality control of the complicated and extremely similar herbal medicine like Danshen, which is more cost effective and time saving.

Jinhui Wang - One of the best experts on this subject based on the ideXlab platform.

  • Discrimination of different genuine Danshen and their extracts by Fourier transform Infrared Spectroscopy combined with two-dimensional correlation Infrared Spectroscopy.
    Spectrochimica acta. Part A Molecular and biomolecular spectroscopy, 2012
    Co-Authors: Xin-hu Liu, Su-qin Sun, Jian Huang, Ke Zhang, Yun Zhu, Qun Zhou, Zhi-cheng Zhang, Jinhui Wang
    Abstract:

    Abstract In this study, six varieties of Danshen from different populations and genuine (“Daodi” in Chinese transliteration) regions were discriminated and identified by a three-step Infrared Spectroscopy method (Fourier transform-Infrared Spectroscopy (FT-IR) coupled with second derivative Infrared Spectroscopy (SD-IR) and two dimensional correlation Infrared Spectroscopy (2D-IR)). Though only small differences were found among the FT-IR spectra of the six Danshen samples, the positions and intensities of peaks at 3393, 3371, 1613, 1050, and 1036 cm −1 could be considered as the key factors to discriminate them. More significant differences were exhibited in their SD-IR, particularly for the peaks around 1080, 1144, 695, 665, 800, 1610, 1510, 1450, 1117 and 1077 cm −1 . The visual 2D-IR spectra provided dynamic chemical structure information of the six Danshen samples with presenting different particular auto-peak clusters, respectively. Moreover, the contents of salvianolic acid B in all samples were measured quantitatively by a validated ultra performance liquid chromatography (UPLC), which was consistent with the FT-IR findings. This study provides a promising method for characteristics and quality control of the complicated and extremely similar herbal medicine like Danshen, which is more cost effective and time saving.

Yanfang Yang - One of the best experts on this subject based on the ideXlab platform.

  • Analysis of Chuanxiong Rhizoma and its active components by Fourier transform Infrared Spectroscopy combined with two-dimensional correlation Infrared Spectroscopy.
    Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy, 2016
    Co-Authors: Yizhen Guo, Jingjuan Wang, Yang Liu, Su-qin Sun, Yao Xiao, Li Xiang, Yanfang Yang
    Abstract:

    As complicated mixture systems, active components of Chuanxiong Rhizoma are very difficult to identify and discriminate. In this paper, the macroscopic IR fingerprint method including Fourier transform Infrared Spectroscopy (FT-IR), the second derivative Infrared Spectroscopy (SD-IR) and two-dimensional correlation Infrared Spectroscopy (2DCOS-IR), was applied to study and identify Chuanxiong raw materials and its different segmented production of HPD-100 macroporous resin. Chuanxiong Rhizoma is rich in sucrose. In the FT-IR spectra, water eluate is more similar to sucrose than the powder and the decoction. Their second derivative spectra amplified the differences and revealed the potentially characteristic IR absorption bands and combined with the correlation coefficient, concluding that 50% ethanol eluate had more ligustilide than other eluates. Finally, it can be found from 2DCOS-IR spectra that proteins were extracted by ethanol from Chuanxiong decoction by HPD-100 macroporous resin. It was demonstrated that the above three-step Infrared Spectroscopy could be applicable for quick, non-destructive and effective analysis and identification of very complicated and similar mixture systems of traditional Chinese medicines.

Andreas Barth - One of the best experts on this subject based on the ideXlab platform.

Wojciech M. Kwiatek - One of the best experts on this subject based on the ideXlab platform.