Study of human gallstones by Raman spectroscopy

摘要

A suit of human gallstones was investigated by a new type of grating Raman spectrometer. The spectra of cholesterol stone, mixed stone, and brown pigment stone were obtained. A strong Raman band at 1748 cm$+$MIN@1$/ attributed to fatty salts indicates that some stones may contain more fatty salts than other gallstones. The results suggest that fatty salts may play an important rule for some gallstones. The formation mechanism is discussed in the paper. Such information is very useful to clinical application.