title: Radioisotope induced X-ray emission (RIXE) studies in life sciences.
abstract: The inherent advantages of radioisotope induced X-ray emission (RIXE) are briefly presented, with emphasis on their applications to analysis in the life sciences. The following selected applications by RIXE are discussed in general: (1) In vivo analysis: the determination of stable iodine in the thyroid and heavy metals in human bone; (2) the analysis of small tissue samples (about 10 mg) for the simultaneous determination of trace elements between 25 less than or equal to Z less than or equal to 40; data are given from a time study of the disease progress of Lewis lung tumor on a rat's liver over a 24-d period; and (3) a homogeneity study of iron, strontium, and zirconium in IAEA's SL-3 Lake sediment standard reference material is presented.
authors.affiliation: Instituto Venezolano de Investigaciones Científicas (IVIC), Caracas.
authors.forename: J J
authors.initials: JJ
authors.lastname: LaBrecque
mesh_terms: D000818:Animals; D001842:Bone and Bones / Q000737:chemistry; D006801:Humans; D007455:Iodine / Q000032:analysis; D008175:Lung Neoplasms / Q000737:chemistry; D011868:Radioisotopes; D012015:Reference Standards; D013052:Spectrometry, X-Ray Emission / Q000379:methods*; D013961:Thyroid Gland / Q000737:chemistry; D014131:Trace Elements / Q000032:analysis* / Q000592:standards
chemical_list: D011868:Radioisotopes; D014131:Trace Elements; D007455:Iodine