title: Authentication of vegetable oils by confocal X-ray scattering analysis with coherent/incoherent scattered X-rays.
abstract: This paper presents an alternative analytical method based on the Rayleigh to Compton scattering intensity ratio and effective atomic number for non-destructive identification of vegetable oils using confocal energy dispersive X-ray fluorescence and scattering spectrometry. A calibration curve for the Rayleigh to Compton scattering intensity ratio and effective atomic number was constructed on the basis of a reliable physical model for X-ray scattering. The content of light elements, which are "invisible" using X-ray fluorescence, can be calculated "by difference" from the calibration curve. In this work, we demonstrated the use of this proposed approach to identify complex organic matrices in different vegetable oils with high precision and accuracy.
authors.affiliation: The Key Laboratory of Beam Technology and Materials Modification of the Ministry of Education, Beijing Normal University, Beijing 100875, China; College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China; Beijing Radiation Center, Beijing 100875, China.
authors.forename: Fangzuo
authors.initials: F
authors.lastname: Li
authors.affiliation: The Key Laboratory of Beam Technology and Materials Modification of the Ministry of Education, Beijing Normal University, Beijing 100875, China; College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China; Beijing Radiation Center, Beijing 100875, China.
authors.forename: Zhiguo
authors.initials: Z
authors.lastname: Liu
authors.affiliation: The Key Laboratory of Beam Technology and Materials Modification of the Ministry of Education, Beijing Normal University, Beijing 100875, China; College of Nuclear Science and Technology, Beijing Normal University, Beijing 100875, China; Beijing Radiation Center, Beijing 100875, China. Electronic address: stx@bnu.edu.cn.
authors.forename: Tianxi
authors.initials: T
authors.lastname: Sun
mesh_terms: D010938:Plant Oils / Q000528:radiation effects*; D012542:Scattering, Radiation; D014965:X-Rays
chemical_list: D010938:Plant Oils
keywords: Confocal X-ray scattering; Effective atomic number; Rayleigh to Compton scattering intensity ratio; Vegetable oils