Ihe Best Instruments In The World for absolute macromolecular characterization.
O
UR DAWN" instruments will measure the absolute I molecular weight of your polymers directly and easily. Couple our systems to your existing GPC/SEC line and you'll be determining absolute • Coll us at ^ weights, sizes and distributions without having to rely 805-963-5904 (or FREE literature! on polymer standards, column calibration, "universal" constants, orflowrate effects. You can even determine branching ratios, molecular sizes, and conformations in minutes—without making any assumptions. The DAWNs can also be used to observe polymerization and kinetics as they occur, or for immediate quality control "fingerprinting" of complex polymer solutions. Please contact us for a complete literature package. It won't take us long to delight you with the best CORPORATION 802 East Cota Street · Santa Barbara, CA 93103 service, support—and instruments—in the world!
Wyatt
Technology
Telephone: (805) 963-5904 · FAX (805) 965-4898 c 1991. Wyatt Technology Corporation. All rights reserved.
CIRCLE 118 ON READER SERVICE CARD
MISTRAL Full range HPLC temperature control, exact and reproducible at elevated and subambient temperatures (4-90°C). By Spark's new column thermostat Mistral. Peltier technique is used for comfortable column cooling, high air velocities for efficient heat exchange between column and air. Stable column temperature: Mistral. Compatible with most HPLC systems.
Spark Holland INSTRUMENTS FOR HPLC PO. Box 388.7800 AJ Emmen. The Netherlands Tel. (31)5910-31700. Fax. (31)5910-300 35 CIRCLE 100 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 64, NO. 17, SEPTEMBER 1, 1992 · 845 A
