Who offers you the best selection in reversed phase columns?
PROWNLEE!
Reversed phase columns are not all alike. Subtle variations in selectivity can mean the difference between a great separation and one you worry about. That's why Brownlee Labs offers you eight different reversed phase chemistries in two particle sizes. And we made it easy and economical to try different packings. Once method development is complete, you can count on reproducible results. Our analytical columns go through no less than twenty tests before they reach your lab. Now that's quality assurance.
For HPLC columns that mean superior separation and reproducibility, send for our new 1985-86 catalog. Or call our new toll-free number for immediate assistance.
Brownlee Labs A division of Applied Biosystems, Inc. 2045 Martin Avenue, Santa Clara, CA 95050 (800) 231-4038 (408) 727-1346
CIRCLE 16 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 57, NO. 14, DECEMBER 1985 · 1513 A
