A master class on the topic «Methods of physicochemical analysis» was held

On April 13, 2026, the Scientific Research Center of Pharmacy organized a master class dedicated to Science Day on the topic “Methods of Physicochemical Analysis” for students enrolled in the educational program “Technology of Pharmaceutical Production.”
The Head of the Scientific Research Center of Pharmacy, Candidate of Pharmaceutical Sciences, Professor K.K. Orynbassarova, emphasized the significance of conducting comprehensive scientific research on various types of medicinal plant raw materials. Such research is essential for their industrial utilization and for expanding the range of domestically produced herbal medicinal products.

The primary objective of the research activities is to establish a sustainable domestic raw material base of medicinal plant resources, as well as to develop and implement highly effective and environmentally safe herbal medicines. Within the framework of these research initiatives, biologically active compounds are isolated and studied from medicinal plants native to South Kazakhstan, with the subsequent development of new broad-spectrum phytopharmaceuticals.

The master class was coordinated by K.K. Orynbassarova, G.S. Rakhmanova, A.D. Rybakova, and A.T. Kuandyk.
The aim of the master class was to enhance the scientific capacity of students in the field of pharmaceutical research. During the event, key physicochemical analysis methods were demonstrated, including spectrophotometry, refractometry, and infrared spectroscopy.

A.T. Kuandyk presented spectrophotometry as a fundamental physicochemical method of analysis, based on the determination of substance concentration through the measurement of solution absorbance. As part of the demonstration, participants observed the quantitative analysis of colored solutions.
In addition, A.T. Kuandyk introduced the principles of infrared spectroscopy. Participants were ознакомлены with the absorption maxima of infrared radiation, which indicate the presence of specific functional groups and structural fragments within the molecules of the analyzed samples.

Researcher G.S. Rakhmanova demonstrated the extraction of essential oils using a Clevenger apparatus. She explained that the essential oil content in plant raw materials can be determined by steam distillation, followed by calculating the yield as a percentage relative to absolutely dry raw material based on the volume of the obtained oil.

Given that essential oils are optically active substances, their purity was assessed using a refractometer. It was noted that an increase in the refractive index may indicate the presence of impurities in the essential oil composition. Following the extraction process, Researcher and Master of Medical Sciences A.D. Rybakova provided a detailed explanation of the operating principles of the RX-7000i refractometer and demonstrated its practical application.

At the conclusion of the master class, a discussion session was held. Participants highlighted that such events effectively demonstrate the integration of academic disciplines studied at the university. The knowledge acquired in the field of physicochemical analysis contributes significantly to the development of professional competencies and practical skills required for future specialists.
In conclusion, the high standards applied to the content and organization of specialist training in higher education institutions, including the active support of student research activities, are обусловлены the rapid pace of modern economic development. Consequently, elements of scientific research are increasingly integrated into the educational process, facilitating the practical application of theoretical knowledge and promoting student involvement in research activities both within and beyond the academic curriculum.