Determination of Propranolol Hydrochloride in Pharmaceutical Preparations Using Near Infrared Spectrometry with Fiber Optic Probe and Multivariate Calibration Methods

Table 1

Results obtained using full-spectrum PLS model for propranolol hydrochloride determination by FTNIR/PROBE.

Model	VN^a	Interval	LV^b		RMSECV (mg g^−1)
PLS (D/M)	6000	all	8	0.941	18.4
PLS (D/A)	6000	all	9	0.950	17.9
PLS (MSC/M)	6000	all	7	0.951	17.4
PLS (MSC/A)	6000	all	6	0.953	17.6

VN: total variable numbers; ^bLV: latent variables.