Author: Dr. Alka Mishra, Maya Devi
Volume: 01
First Online: 2026
Pages: 30-50
DOI:

This chapter presents the essential laboratory instruments and analytical techniques widely employed in physiology, pharmaceutical sciences, and biomedical research. It explains the principles, construction, operation, calibration, and applications of commonly used laboratory instruments, including the pH meter, centrifuge, and colorimeter. The chapter also provides a detailed understanding of advanced spectroscopic techniques such as UV-Visible spectroscopy, Infrared (IR) spectroscopy, Nuclear Magnetic Resonance (NMR), and Electron Spin Resonance (ESR). These techniques are discussed with respect to their analytical principles, instrumentation, working mechanisms, and applications in qualitative and quantitative analysis of biological and pharmaceutical samples. Emphasis is placed on accurate measurement, instrument handling, experimental reliability, and interpretation of analytical results. The chapter highlights the importance of these tools in clinical diagnostics, biochemical investigations, drug analysis, molecular characterization, and quality control. Practical considerations, advantages, limitations, and laboratory applications are also included to bridge the gap between theoretical understanding and experimental practice. Overall, this chapter provides students with a strong foundation in modern physiological and analytical techniques
that support research, diagnosis, and pharmaceutical development.