Chemistry plays an important and useful role towards the development and growth of a number of industries. This book intends to illustrate the applicability of the most popular and successful analytical techniques as well as the relevant quality systems and their implementation. The reader can find information such as the applicability of plasma based techniques to biological monitoring, atomic spectrometry, organometallic speciation, the clinical meaning of molybdenum, bioimaging of metals and proteomic studies of clinical samples by laser ablation inductively coupled plasma mass spectrometry, application of liquid chromatography combined with tandem mass spectrometry in clinical laboratory diagnostics, metabolomics using high-performance liquid chromatography-tandem mass spectrometry, biomarkers of stress in plasma and urine, X-ray techniques in medical research, and analytical examination of drugs in the forensic science laboratory. The chapters contained in this book are written by a team of expert from world-renowned clinical laboratory scientists, as well as physicians and research scientists.