PRINCIPLES OF INSTRUMENTAL ANALYSIS has long been the standard for courses that deal with the principles and applications of modern analytical instruments. Now with their new Sixth Edition, authors Douglas A. Skoog, F. James Holler, and Stanley R. Crouch infuse their popular text with updated techniques as well as new Instrumental Analysis in Action case studies. The book's updated material enhances its proven approach, which places an emphasis on the theoretical basis of each type of instrument, its optimal area of application, its sensitivity, its precision, and its limitations. PRINCIPLES OF INSTRUMENTAL ANALYSIS also introduces students to elementary analog and digital electronics, computers, and treatment of analytical data. A book companion website is available, providing students with tutorials on instrumental methods, Excel files of data analysis and simulations of analytical techniques to help them visualize important concepts in this course, and selected papers from the chemical literature to stimulate interest and provide background information for study. Benefits: * NEW! Six new Instrumental Analysis in Action features have been added to help students see the relevance of analytical chemistry. A Challenge Problem at the end of each chapter encourages students to read the literature of analytical chemistry and to apply principles and methods. * NEW! Many chapters contain spreadsheet examples with references to the APPLICATIONS OF MICROSOFTr EXCEL IN ANALYTICAL CHEMISTRY (written by Crouch and Holler), and include corresponding end-of chapter spreadsheet problems. * The art program both aesthetically and pedagogically improves the text through the addition of color, grayscale screens, graph boxes, and photos of instrument systems. * The book's student-friendly presentation includes an active and engaging writing style. * PRINCIPLES OF INSTRUMENTAL ANALYSIS offers the most current data in its coverage and its end-of-chapter p