Magnesium methanesulfonate salt found in the Dome Fuji (Antarctica) ice core.

The article discusses a study on methanesulfonate salt particles in samples of the Dome Fuji ice core in Antarctica using micro-Raman spectroscopy. A charge-coupled device (CCD) detector is one of the features of the micro-Raman spectrometer utilized in the study. Stretching frequencies have emerged as the key differentiating factor between the Raman spectra of the simple salts and the corresponding hydrated crystals. Results showed the spectra of the methanesulfonate salt particles correspond with the (CH₃SO₃)₂ Mg·nH₂O reference specimen. Also noted is the formation of (CH₃SO₃)₂ Mg·nH₂O in the atmosphere of Antarctica.