Because of the wide variety of choices in available instrumentation to perform various types of analyses (of varying sensitivity and selectivity), this book provides an invaluable service to analysts in labs everywhere who need to decide which method to use, which instrumentation to purchase, who hesitate between one method or another, or are simply curious about methods they have not yet used. This book is adressed to analytical chemists and all other chemists and technicians who analyze samples. It is also a helpful tool for chemists, technicians and managers who need to recommend the purchase of instrumentation to their supervisors. The book will help relieve the