Analytical chemistry is the branch of chemistry that encompasses the study and uses different instruments and methods for identifying, separating and quantifying matter. Qualitative and quantitative analysis are two methods. They identify analytes and determine the numerical count of concentration, respectively. This field includes classical, modern, wet chemical and instrumental methods. Analytical chemistry is focused on the improvement and advancement of experimental design, the creation of new measurement tools and chemometrics. It has significant applications in the diverse areas of bioanalysis, nanotechnology, clinical analysis, forensic screening, environmental analysis and materials analysis. This book discusses the fundamentals as well as modern approaches of analytical chemistry. It is compiled in such a manner, that it will provide in-depth knowledge about the theory and practice of this field. In this book, using case studies and examples, constant effort has been made to make the understanding of the difficult concepts of analytical chemistry as easy and informative as possible, for the readers.