New Products LAB-8/E system for automation of gc data can handle up to 64 instruments over a maximum distance of up to 1500 ft. Version II software enables the operator to reanalyze chromatographic data using different analysis parameters without rerunning the instrument and to use multiple reference peaks and mul tiple internal standards. Multiple peaks can be added and treated as a single component. $4990 and up. Digital Equipment Corp. 617-897-5111 412
Analytical & Preparative
GEL ELECTROPHORESIS Buchler provides these important, temperature controlled instru ments for separating proteins, hemoglobin, albumin, enzymes and other compounds using polyacrylamide or another supporting medium. For complete informa tion and prices, write for appro priate bulletin.
POLYANALYST Basic analytical unit for separa tion and destaining. Migration takes place in 12 sample col umns. Request Bulletin #3-1750.
POLY-PREP "100" Preparative instrument for con tinuous fractionation and elution. Request Bulletin #3-1770.
BUCHLER INSTRUMENTS DIVISION BUCHLER INSTRUMENTS
NUCLEAR-CHICAOO CORP. A SUB- D.AHY Ul· ϋ !J f S E A R L E I & ΠΟ
1327 SIXTEENTH STREET, FORT LEE, NEW JERSEY, 07034 CIRCLE 18 O N READER SERVICE CARD
Samford University's, Dr.J.H.Langston: Spectrographic system consisting of the PW 1410 universal vacuum X-ray spec trometer (shown above), the XRG 5000 X-ray generator system, and the IC 2330 modular data system is a fully integrated system for the quantitative and qualitative analysis of all elements from fluorine upward. The data handling system of all solid-state de sign features a pulse-height analyzer oscilloscope which gives visual display of X-ray pulses being measured. The total system costs $40,000 to $45,000; the basic spectrometer costs $16,000. Philips Electronic Instruments. 914664-4500 413
Modular automatic titration system con sists of buret, buret drive, buret drive control unit, electrode potential ampli fier, automatic rate and end point con troller, and recorder. The system is ap plicable for all potentiometric titration problems including neutralization, re dox, precipitation, compleximetric, in volving aqueous and nonaqueous solu tions, as well as pH stat procedures. Burets come in two sizes: 10 ml and 1 ml. $5000, total system; $1150 buret only. Mettler Instrument Corp. 609448-3000 414
"I evaluated analytical balances for a year... but it was a 15 minute TORBAL demonstration that sold me." Dr. J. H. Langston, Chairman of the Chemistry Department at Samford University, needed some new analytical balances that could stand Lip under use by as many as twenty chemistry students per day. It took the Torsion represen tative just 15 minutes to point out that the noknife-edge torsion design principle provides this kind of ruggedness—plus high accuracy and precision. As a result of this demonstration, Samford University equipped their analytical lab with TORBAL EA-I electronic analytical balances. The EA-1, with a capacity of 160 g and precision of 0.03 mg, features an electronic null indicator, which elimi nates i n a c c u r a c i e s iiue t o sensitivity v a r i a t i o n s , and complete digital readout to 0.1 mg for faster, easier reading. We'd welcome the chance to demonstrate the EA-1 to you. Just call your nearest Torsion sales representative. THE TORSION BALANCE CO. Clifton, New Jersey. Sales offices in Chicago, 111.; San Mateo, Cal.; Pittsburgh, Pa.; Montreal, Quebec; and Windsor, England. Balances manufactured in Waterford, Ireland and Clifton, New Jersey. CIRCLE 171 O N READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 43, NO. 6, MAY 1971 • 99 A
