SERVICES QUANTITATIVE Organic Microanalyses WEST COAST ANALYTICAL LABORATORIES, INC. Box 5 0 5 , El Cerrito, California
LA 4 - 0 2 9 8
CLARK MICROANALYTICAL LABORATORY C H , N , S, Halogen, Fluorine, Oxygen, A l k o x y l , Alkimide, A c e t y l , Terminal, M e t h y l , etc. by specialists in organic microchemical analysis. H o w a r d S. Clark, Director P.'jO. Box 17, Urbana, III.—-Telephone EMpirc 7-8406
LABORATORY SERVICES /Applied Research and Development, Testl i n g and Consultation · Food, Feed, Drug •and Chemical Analyses, Animal Studies, • Pesticide Screening, Pesticide and AddiItive Residue Analyses
MASS SPECTROMETER SERVICE PETROLEUM A N A L Y T I C A L RESEARCH CORP. Houston 17, Texas Tel. Mission 9-2753
P. O. Box 12334
NATIONAL SPECTROGRAPHS LABORATORIES. INC.
Reseat H?J Ι ί ο ρ β ί l u a l i l I Control COM! KBGBTGI# m JLITIES uc • Anal rBgieneTS ^Hriikateria m Physics • Indii §He| • Met! lirS I CMtmi H * β liculture 8300 Euci IAVI IcievmoJ Phis! mm 1-4B64 11(0 PalnPive.,'WaleiSFfifidi f Hub 5-1691 A M I N O ACID ANALYSIS . . . of proteins, peptides, tissue extracts, foods, and physiological fluids by the Spackman, Moore, Stein ion-exchange method, using the latest BeckmanSpinco Analyzer. Inquiries for rates and other details are invited
