Nelu Grinberg & Sonia Rodriguez 
Ewing’s Analytical Instrumentation Handbook, Fourth Edition [PDF ebook] 

This handbook is a guide for workers in analytical chemistry who need a starting place for information about a specific instrumental technique. It gives a basic introduction to the techniques and provides leading references on the theory and methodology for an instrumental technique. This edition thoroughly expands and updates the chapters to include concepts, applications, and key references from recent literature. It also contains a new chapter on process analytical technology.