title: Measurement of the elemental composition of nasal-pharynx cancerous tissue with PIXE.
abstract: Twenty elements in two samples of nasal-pharynx cancerous tissue (NPCT) have been measured with PIXE. The results show that the element concentrations of calcium and zinc are very high, up to several thousand micrograms/g. Compared with results from other types of cancer patients, trace element concentrations in NPCT seem to be in a special status.
authors.affiliation: Department of Applied Science, City Polytechnic of Hong Kong, Kowloon.
authors.forename: P L
authors.initials: PL
authors.lastname: Leung
authors.forename: Z X
authors.initials: ZX
authors.lastname: Cai
mesh_terms: D000328:Adult; D002118:Calcium / Q000032:analysis*; D006801:Humans; D008297:Male; D008875:Middle Aged; D009303:Nasopharyngeal Neoplasms / Q000737:chemistry*; D013052:Spectrometry, X-Ray Emission; D014131:Trace Elements / Q000032:analysis*; D015032:Zinc / Q000032:analysis*
chemical_list: D014131:Trace Elements; D015032:Zinc; D002118:Calcium