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Proceedings Paper

Calcium bilirubinate intercalated calcite single crystal: evidence for microstructure of pigment gallstones
Author(s): H. Z. Liu; D. J. Xu; Roger D. Soloway; Y. Z. Zhang; Duan-Fu Xu; JinGuang Wu
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Paper Abstract

During the preparation of calcium bilirubinate (CaBR) single crystals, brown crystals were grown in a gel solution of CaCl2/Sodium bilirubinate. X-ray diffraction analysis proved that the crystal was calcite. FTIR investigations support this result. However, the subtracted spectra revealed that the CaBR dispersed in the crystals and interacted with calcite on the molecular level, since the maximum band shift of the CaBR in calcite from the correspond bands of CaBR was ca. 20 cm-1. It was confirmed that microstructure also by x- ray diffraction and photoacoustic Fourier transform infrared spectroscopy.

Paper Details

Date Published: 31 January 1994
PDF: 2 pages
Proc. SPIE 2089, 9th International Conference on Fourier Transform Spectroscopy, (31 January 1994); doi: 10.1117/12.166729
Show Author Affiliations
H. Z. Liu, Peking Univ. (China)
D. J. Xu, Peking Univ. (China)
Roger D. Soloway, Univ. of Texas Medical Branch Galveston (United States)
Y. Z. Zhang, Peking Univ. (China)
Duan-Fu Xu, Peking Univ. (China)
JinGuang Wu, Peking Univ. (China)


Published in SPIE Proceedings Vol. 2089:
9th International Conference on Fourier Transform Spectroscopy
John E. Bertie; Hal Wieser, Editor(s)

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