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

Table 3

Solutions of different concentrations in triplicate (400, 500, and 600 mg/mL) used to calculate the precision (RSD) and accuracy (AC).

Real concentration (mg/mL)	VO RS/PCR (mg/mL)	DAC (mg/mL)	SD (mg/mL)	RSD (%)	RD (%)	AC (%)
400	395	397	3.81	0.95	0.75	99.2
	394
	401
500	511	506	7.58	1.49	1.2	101.2
	497
	509
600	611	600	10.61	1.76	0	100.0
	598
	590

VO: value obtained in the assay test of RS/PCR; RS/PCR: Raman spectroscopy combined with chemometric method PCR; DAC: determined average concentration; RD: relative deviation.