Training Manual . — SPb. : SPbGTURP, 2014. — 39 s. The manual outlines the theoretical foundations of optical methods of analysis: photometry and spectrophotometry, as well as questions for self-testing in the form of tests. The textbook is intended for students of correspondence education of chemical-technological and engineering-ecological faculties undergoing training in the following areas: 18. 03. 01 "Chemical Technology", 18. 03. 02 "Energy and resource-saving processes in chemical technology, petrochemistry and biotechnology", 15. 03. 04 "Automation of technological processes and productions", as well as for masters studying in the direction of "Chemical Technology", and for specialists in the field of analytical chemistry .