Encyclopedic information regarding the biochemical applications as well as other applications of gas chromatography are elucidated in this book. The analytical technique of gas chromatography incorporates the study of different volatile molecules in associated research fields of chemistry. This technique holds numerous characteristics and advantages making it a valuable method for the identification, evaluation and anatomical assessment of organic molecules. This book presents thorough information on applications of gas chromatography to materials like essential oils, biochemicals and narcotics. The finer characteristics of various applications have been thoroughly dealt with by the contributors to enhance their simplicity and viability. This text will prove to be of great use to beginners as well as experts who may not hold sufficient knowledge about particular uses of gas chromatography. This book will find suitable applications in labs where relevant techniques of gas chromatography are practiced.