Title (PCHS) PHARCHEM 4 - PHYSICOCHEMICAL AND INSTRUMENTAL METHODS USED IN PHARMACEUTICAL ANALYSES (WITH PERMISSION).pdf ✅

SPECTROMETRY.  It is defined as methods of analysis which deals with the measurement of spectra.

SPECTROPHOTOMETRY.  It is a branch of spectrometry which embraces the measurement of the absorption by chemical species of radiant energy of definite and narrow wavelength approximating monochromatic radiation.