title: Pigmentation and temporal effects on trace elements in hair.
abstract: Variations in trace element concentration in the head and facial hair of five individuals with ever-increasing amounts of white hair were examined. Hair was collected from the scalp, cheeks, and chin from one donor on a regular basis since 1984. Samples were separated into white and pigmented fractions, and analyzed at SLOWPOKE-Toronto by INAA for the short-lived, isotope-producing elements Br, Ca, Cl, Cu, I, Mg, Mn, Na, S, and Zn. Temporal concentration variations of these elements over time, and variations of the elemental concentrations in pigmented and white hair were established.
authors.affiliation: SLOWPOKE Reactor Facility, University of Toronto, Canada.
authors.forename: S
authors.initials: S
authors.lastname: Aufreiter
authors.forename: R G
authors.initials: RG
authors.lastname: Hancock
mesh_terms: D000328:Adult; D000368:Aged; D006197:Hair / Q000737:chemistry*; D006200:Hair Color; D006801:Humans; D008297:Male; D008875:Middle Aged; D009501:Neutron Activation Analysis; D013997:Time Factors; D014131:Trace Elements / Q000032:analysis*
chemical_list: D014131:Trace Elements