COMPANY, Inc

spectra directly on punched cards. This system does not ... microfilm aperture card and employs features of ... Desigred for direct across-the- line operation.. .may ...

AMBAC. INDUSTRIES,. IIMC. Phone l. L. 5/78. _l. CIRCLE 182 ON READER 5ERVICE CARD. ANALYTICAL CHEMISTRY,VOL. 50, NO. 11, SEPTEMBER 1978.

education, research people have discovered that they can depend on. Hamilton for precision measuring equipment. Hamilton manufactures a complete line of.

elements to build into your own apparatus. Hermetic or me- chanical seals, built-in reference gases on specification. Panel instruments custom designed for high sensitivity such ... For further information, circle number 26A-1 on Readers' Service Car

tional to the total mass of material in the corresponding zone. This equipment is described by Dr. . K. Brakke in his paper: Photometric Scanning of Centrifuged Density Gradient Columns,. Analytical Biochemistry, 5, 271, (April 1963). We will send a

Counting is stoppedby whichever is reached first. Sample number, time interval andtwo scaler readings are all printed out as an accurate and permanent record ...

crom ABS (acid and base washed, and silanized). CARRIER GAS FLOW RATES: Nitrogen 60 cc/min. Hydrogen FID 40 cc/min; STD. 60 cc/min. Air 300 cc/min.

ing heating, solvent recovery, and vacuum systems, an ... cal data on the complete Full-View line. A word from you ... 35 on Readers' Service Card. VOL. 53, NO.

Ashworth, Chief Chemist for American Chemical Corporation, Long Beach, California, “But with Hamilton syringes we are ... P. O. Box 307-B.Whittier, California.

hove special requirements in magnetic amplifier DC sources, write or call the Appli- cations Engineering ... sections of his company. Personal attitudes permeate ...