DEVELOPMENT OF A SPECTROPHOTOMETRIC DEVICE USING A HIGH-FREQUENCY RADIATION MODULE Journal title: International scientific journal Science and Innovation Authors: B.Z. Parmanov, D.A. Vafoev Subject(s): Archaeology, Arts and Literature, Biological Sciences, Chemistry, Computer and Information Science, Economics, Education, Humanities, Law, Linguistics, Mathematics, Medicine, Philosophy, Physics, Psychology, Social Sciences, Architecture, Agricultural Science