Dear Clinton, Excellent book for you is by E. Hoffmann, J Charrette and V. Stroobant, Mass Spectrometry. Stan ============================== Professor Dr. Stanislaw Halas Mass Spectrometry Laboratory Maria Curie - Sklodowska University 20-031 Lublin, POLAND tel: (48 81) 537 6275 fax: (48 81) 533 3669