Review of the scientific adviser to the final qualifying work of the student of the Department of Analytical Chemistry of the Institute of Chemistry of St. Petersburg State University Trufanov Ivan Maksimovich on the topic "Development of a paper chip for multicomponent analysis of biodiesel fuels"  Diploma work of Trufanov I.M. is concerned with one of the main problem in the analytical chemistry and has great applied and scientific value. The thesis is presented in a traditional style. A detailed and informative literature review describes the current methods for manufacturing of paper based microfluidic devices and the methods of detection. A separate chapter is devoted to biodiesel fuel and methods of its analysis. The work is devoted to solving the problems of controlling the quality of biodiesel fuel and at expanding of the analytical capabilities of miniaturization of chemical analysis in the "paper-based laboratory" version. During the work, Ivan Maksimovich improved the method of manufacturing of paper –based microfluidic device, which described in the literature. It’s made possible to expand the analytical capabilities. In addition, the approaches implemented by Ivan Maksimovich during the his work allowed to determine two analytes at once on a single paper microfluidic device during the analysis of a complex matrix which had not previously been presented in the literature. In the experimental part, the main attention is paid to the selection of the conditions for the manufacturing of paper-based microfluidic devices, to the conditions for the sample preparation and to finding the optimal conditions for the formation and detection of analytical forms. Using the new technique, the author analyzed real samples of biodiesel fuel for the content of glycerin and metals. The data obtained showed a good correlation with the results obtained using HPLC and atomic emission spectroscopy. During the work on the diploma Ivan Maksimovich showed himself as a good specialist, able to quickly learn new methods and offer his own solutions to emerging problems. However, he did not master the ability to correctly plan his time and prioritize. The presented diploma work allows to characterize the graduate as a qualified and talented chemist able to cope with the solution of complex scientific problems. The work is written on a high scientific level, competently framed and deserves an excellent evaluation.  scientific adviser Ph.D. Assistant of the Institute of Chemistry of St. Petersburg State University  Shishov A.Yu.