Run with the best . . .
Innovative chromatography products that provide high performance and exceptional value. From EM Science: • Guaranteed-performance HPLC columns • TLC, HPTLC plates • HPLC instruments • Silica gel sorbents • Sample preparation systems • Specialty HPLC columns: Polymeric, chiral, & biochrom
Turn to EM Science for the best performance, value, and innovation in chromatography products. All EM Science chromatography products provide reproducibility you can depend on . . . and the economy you'll appreciate.
E M SCIENCE A Division of EM Industries, Inc.
P.O. Box 70 480 Democrat Road Gibbstown, NJ 08027 (609) 354-9200 (800) 222-0342 Associate of E. Merck, Darmstadt, Germany
Find out what's new in innovative chromatography products. Call or write today for this new, FREE bulletin.
© 1989 EM Science
We have service down to a science. HPLC Columns Circle #40
TLC Circle # 41
HPLC Instruments Circle it 42
Sorbents Circle # 43
Sample Prep Circle # 44
Specialty HPl£ Columns Circle # 45
EMS-BOS
See us at Pitcon booth 4533-4542. ANALYTICAL CHEMISTRY, VOL. 61, NO. 3, FEBRUARY 1, 1989 · 197 A