Differentiation of lipsticks using the shifted excitation Raman difference spectroscopy supported by chemometric methods

2020 ◽  
Author(s):  
Jin Zhang ◽  
Hong Jiang ◽  
Feng Liu ◽  
Bin Duan
Keyword(s):  
Chemometric Methods ◽  
Difference Spectroscopy

Using chemometric methods to study the mariculture eco-environment in Dapeng Cove, China

2013 ◽  
Vol 19 (5) ◽  
pp. 881-888
Author(s):  
Ziyang TIAN ◽  
Honghui HUANG ◽  
Zhanhui QI ◽  
Xiuli LIAO ◽  
Huaxue LIU ◽  
...  
Keyword(s):  
Chemometric Methods

Quality evaluation of tugaksheeree samples by ATR-FTIR spectroscopy using multicomponent analysis

2020 ◽  
Vol 10 ◽  
Author(s):  
Nikunj D. Patel ◽  
Niranjan S. Kanaki
Keyword(s):  
Principal Component Analysis ◽  
Cluster Analysis ◽  
Quality Evaluation ◽  
Principal Component ◽  
Hierarchical Cluster ◽  
Attenuated Total Reflectance ◽  
Chemometric Methods ◽  
Total Reflectance ◽  
Fingerprint Region ◽  
Ftir Technique

Background: Numerous Ayurvedic formulations contains tugaksheeree as key ingredient. Tugaksheereeis the starch gained from the rhizomes of two plants, Curcuma angustifoliaRoxb. (Zingiberaceae) and Marantaarundinacea (MA) Linn. (Marantaceae). Objective: The primary concerns in quality assessment of Tugaksheeree occur due to adulteration or substitution. Method: In current study, Fourier transform infrared (FTIR) technique with attenuated total reflectance (ATR) facility was used to evaluate tugaksheeree samples. Total 10 different samples were studied and transmittance mode was kept to record the spectra devoid of pellets of KBR. Further treatment was given with multi component tools by considering fingerprint region of the spectra. Multivariate analysis was performed by various chemometric methods. Result: Multi component methods like Principal Component Analysis (PCA), and Hierarchical Cluster Analysis (HCA)were used to discriminate the tugaksheeree samples using Minitab software. Conclusion: This method can be used as a tool to differentiate samples of tugaksheeree from its adulterants and substitutes.

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