Quantitative determination of impurities in polyene antibiotics: fourier transform Raman spectra of nystatin, amphotericin A, and amphotericin B

1988 ◽  
Vol 60 (20) ◽  
pp. 2306-2309 ◽  
Author(s):  
E. Neil. Lewis ◽  
V. F. Kalasinsky ◽  
Ira W. Levin
2003 ◽  
Vol 57 (2) ◽  
pp. 190-196 ◽  
Author(s):  
Bryan T. Bowie ◽  
Peter R. Griffiths

The resolution of a grating polychromator for Raman spectroscopy has been simulated by measuring spectra on a Fourier transform (FT) Raman spectrometer and selecting the FT of the apodization function so that the instrument line shape function mimics the triangular spectral slit function of the polychromator. To this end, FT-Raman spectra measured with a nominal resolution of 0.5 cm−1 were modified through the application of sinc2 apodization functions of various widths to simulate spectra measured on a polychromator at lower resolution. The success of this approach was validated using the 1085 cm−1 band of calcite. When the modified FT-Raman spectra were compared with spectra measured on a grating polychromator equipped with slits of widths 100 and 150 μm, the resolution of the polychromator was estimated to be 6.3 and 7.8 cm−1, respectively. This conclusion was verified experimentally by measuring the separation of two bands in the Raman spectrum of BaSO4 at ∼460 cm−1


1995 ◽  
Vol 26 (5) ◽  
pp. 331-334 ◽  
Author(s):  
Murray H. Brooker ◽  
Ole Faurskov Nielsen ◽  
Daniel Christensen

2016 ◽  
Vol 8 (28) ◽  
pp. 5581-5586 ◽  
Author(s):  
David I. Ellis ◽  
Joanne Ellis ◽  
Howbeer Muhamadali ◽  
Yun Xu ◽  
Andrew B. Horn ◽  
...  

Orange juice is a hugely popular, widely consumed, and high price commodity typically traded in a concentrate form making it highly susceptible to adulteration.


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