This second edition provides detailed LC-MS(/MS) procedures for the analysis of compounds of clinical and toxicological significance. Chapters detail new and updated methods for analyzing drugs focusing on advances in technology, alternate matrices, and rapidly-changing classes of drugs of abuse, compounds pertinent to toxicology, and therapeutic agents. Written in the highly successful Methods in Molecular Biology series format, chapters include introductions to their respective topics, lists of the necessary materials and reagents, step-by-step, readily reproducible laboratory protocols, and tips on troubleshooting and avoiding known pitfalls.  Authoritative and cutting-edge, LC-MS in Drug Analysis: Methods and Protocols, Second Edition aims to ensure successful reults in the further study of this vital field.