Instruments and Systems: Monitoring, Control, and Diagnostics Annotation << Back Development of Experimental Methods for Photometric Analysis of Petroleum Products A.V. AREFIEV, Y.M. BORODYANSKY, E.E. MAIOROV, A.V. DAGAEV, M.V. KHOKHLOVA, R.B. GULIYEV This article an experimental technique for photometric analysis of the studied petroleum products is shown. The principle of operation of the spectrum analyzer is considered. The block diagram of the device is given and the operating modes of each unit are described. Ultraviolet absorption spectra of hydrocarbons mixed with water were obtained. In all cases, the content of hydrocarbons in the water was about 0,02 %. Analysis of the spectral characteristics of aqueous solutions of hydrocarbons has shown that the maximum absorption of these liquid-phase media is in the range of wavelengths from 210 to 270 nm. Keywords: spectrum analyzer, hydrocarbon, spectral analysis, the monochromator, the photodetector, the wavelength of the radiation. DOI: 10.25791/pribor.09.2020.1202 Pp. 01-05.