TRAC: Trends in Analytical Chemistry, Volume 11 presents relevant topics in global analytical chemistry research. This book discusses the fundamental principle of competitive immunoassays. Organized into 27 chapters, this volume begins with an overview of the general and important contributions relating to the presentation of forensic evidence to courts of law. This text then discusses the importance of the analysis of scanned measuring quantities. Other chapters consider the advantages as well as the drawbacks of coupled chromatographic methods. This book discusses as well the status of analytical chemistry within the broader scientific arena as a practical rather than fundamentally oriented discipline. The final chapter deals with the properly functioning process control system in manufacturing insulin by reversed-phase high-performance liquid chromatography (RP–HPLC). This book is a valuable resource for analytical, organic, clinical, and regulatory chemists. Electrochemists, scientists, students, engineers, researcher workers, and other practitioners will also find this book extremely useful.