The detection of potassium sulfate in excess of potassium pyrosulfate

Raman spectrometry

“…Resonance Raman spectroscopy can be used for direct analysis in suitable systems. Spectra have been reported for 16 types of carotene containing bacteria and algae, which can be used for identification (257). Dyes are ideal candidates for resonance Raman studies and can be detected at very low concentrations (258).…”

“…where IR and X-ray methods fail (16). The technique has further been used in a comparative study of fossil and modern teeth constituents (17).…”