This thoroughly revised edition of the book demonstrates principle and instrumentation of each technique routinely used in biotechnology. Like the previous edition, the second edition also follows non-mathematical approach. Three aspects of each technique including principle, methodology with knowledge of different parts of an instrument; and applications have now been discussed in the text. For the beginners, the book will help in building a strong foundation, starting from the preparation of solutions, extraction, separation and analysis of biomolecules to the characterisation by spectroscopic methods???the full gamut of biological analysis.