[Combined analysis of urinary stones by X-ray photoelectron spectroscopy and X-ray powder diffraction].
OBJECTIVE
To seek the methods in the prevention and cure of urinary stones in the Zhujiang valley in Guangdong province.


METHODS
Twenty random urinary stones were quantitatively and morphologically analyzed by X-ray photoelectron spectroscopy (XPS) and X-ray powder diffraction (XRD).


RESULTS
Calcium oxalate (about 70%) was the main composition of urinary stones in the Zhujiang valley in Guangdong province; while 30% of which was uric acid stones. Most calcium oxalate stones contain phosphate; however, its content usually was less than 10%.


CONCLUSIONS
Calcium oxalate, uric acid and phosphate are the main compositions of urinary stones in the Zhujiang valley in Guangdong province. The compositions and phases of urinary stones can be obtained accurately by the combination of XPS and XRD.
Ouyang
Jian-ming
JM
Institute of Biomineralization and Lithiasis Research, Jinan University, Guangzhou 510632, China. toyjm@jnu.edu.cn
Li
Xiang-ping
XP
D000328:Adult; D000368:Aged; D002129:Calcium Oxalate / Q000032:analysis*; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D033362:Powder Diffraction; D013052:Spectrometry, X-Ray Emission / Q000379:methods; D014527:Uric Acid / Q000032:analysis; D014545:Urinary Calculi / Q000737:chemistry*; D014961:X-Ray Diffraction / Q000379:methods
D002129:Calcium Oxalate; D014527:Uric Acid