There's only one way to get completely automatic liquid scintillation counting install the n e w Model 3 8 8 0 T r i - C a r t f Spectrometer w i t h optional Absolute Activity Analyzer. - It's the only w a y t o get accurate answers in terms of absolute sample activity w i t h o u t manual c o m p u t a t i o n or complicated transfers of data. Furthermore results are c o m p u t e d automatically w i t h a precision impossible to achieve either manually or w i t h any other o n - l i n e or off-line computer. • It w o r k s w i t h any samples, single or double-labeled, w i t h any type and degree of q u e n c h i n g . Counting conditions are optimized automatically for each sample, and background is held constant for all degrees of q u e n c h i n g . Y o u literally put in samples and take out the data you w a n t . Of course, counting performance—whether in terms of E 2 /B tritium efficiency or isotope s e p a r a t i o n - i s unequalled. Call your Packard Sales Engineer for complete details or w r i t e for Bulletin 1 0 5 7 Q t o Packard Instrument Company, Inc., 2 2 0 0 Warrenville Road, Downers Grove, Illinois 60515· Packard International S.A., Talstrasse 3 9 , 8001 Zurich, Switzerland
Packard
Circle No. 204 on Reader's Service Card
