The book "Statistical processing of the results of analysis of isotopes and especially pure substances by physicochemical methods" is a unique publication created by a team of authors, which will become an indispensable assistant for specialists in the field of analytical chemistry, physics and materials science. It discusses in detail the methods of statistical processing of data obtained in the analysis of isotopes and pure substances, which makes it relevant for researchers, students and teachers working in these areas. The main purpose of the book is to provide readers with the tools and approaches necessary to accurately interpret the results of experiments. In the modern scientific world, where accuracy and reliability of data play a key role, the ability to correctly process and analyze the results becomes especially important. The authors share their knowledge and experience, offering readers not only theoretical foundations, but also practical examples that will help to better understand and apply the methods presented. The book will be interesting to a wide range of readers .. Students and graduate students studying chemistry, physics or related disciplines will find useful information in it for the performance of term papers and diploma papers .. Researchers working in laboratories will be able to use the proposed methods to improve the quality of their research. Teachers involved in preparing students will appreciate the structured approach to the presentation of the material and the possibility of using the book in the educational process. The topics raised in the book cover a wide range of issues related to the analysis of isotopes and pure substances. The authors pay attention to both classical and modern methods of statistical processing, which allows the reader to get acquainted with the latest achievements in this field. The book deals with important aspects such as the choice of methods of analysis, data processing, interpretation of results and evaluation of their reliability. This makes it a valuable resource for all who seek a deep understanding of statistical methods and their application in scientific practice. The style of the authors is distinguished by clarity and accessibility of the presentation, which allows even complex concepts to be presented in an understandable form. There are many illustrations and examples in the book, which makes it not only informative, but also fascinating to read. The team of authors includes experienced specialists, which guarantees the high quality of the material and the relevance of the data presented . If you are looking for literature on statistical data processing in analytical chemistry, physics or materials science, then this publication will be a real find for you. The book “Statistical processing of isotopes and especially pure substances by physicochemical methods” is not just a textbook, but a treasure trove of knowledge that will help you in your scientific research and professional activities. Do not miss the opportunity to enrich your knowledge and skills in the field of statistical data processing . This book will be your reliable companion on the way to new discoveries and achievements in science.