Multivariate Method Based on Raman Spectroscopy for Quantification of Dipyrone in Oral Solutions

Figure 2

Plot of the spectrum of dipyrone diluted in water in the concentration of 500 mg/mL (100% dilution) and the first three principal component loading vectors (LVs), indicating that LV1 is related to the active ingredient dipyrone. LV2 and LV3 do not carry relevant spectral features.