$20,000 buys you the most powerful liquid chromatography facility ever offered maximum resolution with minimum column length and operator manipulation. Use temperatures to 200°C, pressures to 3000 psig. For sheer volume of work, or for variety of methods and parameters, the Liquid Chromatography Labora tory is the answer. Write for complete specs and details to Waters Associates, Inc., 61 Fountain St., Framingham, Mass. 01 701. Telephone (617) 879-2000. In Europe: Waters Associates, Ltd., Meadow Mills, Waters Street, Stock port, Cheshire, England; or Waters Messtechnik GmbH, 6 Frankfurt/Main, Savignystrasse 5 1 , Germany.
Do prep work. Or high-speed, high-resolution chro matography. Or both. Do size separations. Or affinity separations. Or partition, or ion exchange. Or any three. Use UV or refractive index detection. Or both. In short, take advantage of the analytical syner gism provided by three liquid chromatographs work ing in close proximity to one another. Use them simultaneously. Or sequentially. Or separately. End backlogs. Speed research. Tackle real un knowns. Telescope solvent programming by running three polarities simultaneously. Or recycle the sample for
•U.S
price. F Ο Β
Framingham. $19,980.
The Liquid Chromatography Laboratory, by Waters Associates. Temperature-controlled column compartment
Prep solvent reservoir
l-rep or analytical c o l u m n s
Differential refractometer (1st chromatograph) Switchable two-pen recorder High resolution c o l u m n s (2nd c h r o m a t o g r a p h )
Solvent reservoir (3rd chromatograph)
Valve and loop sample inject
Recycle valve
High pressure p u m p UV detector
Septum sample inject
Pump compartment Differential refractometer (3rd chromatograph)
WATERS ASSOCIATES
4954
Circle Να. 163 on Readers' Service Card 22 A
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ANALYTICAL CHEMISTRY, VOL. 4 2 , NO. 13, NOVEMBER
1970