HAAKE does it all in constant temperature. Haake invented the circulator over 50 years ago. Today it provides temperature control excellence to many modern industries including biomedical, aerospace, electronics, semi-conductor, petrochemical and biotechnology... continuing tradition with the world's largest selection of circulators, baths and accessories. A choice of over 40 models offers the versatility required to satisfy a wide range of needs for precise constant temperature control. Unique features make Haake Temperature Control Systems extremely dependable. All parts in contact with liquid are made of stainless steel or durable plastic. Some models can be controlled by an external computer or connected to the Haake Programmer. Nearly all feature automatic adjustment of heat in proportion to changing thermal loads to minimize drift. Let us show you how our technical expertise can help you. We'll specify the right model to suit your needs. Call us, toll free, or write:
Haake Buchler Instruments, Inc. 244 Saddle River Rd., Saddle Brook, NJ 07662-6001 Call: 201-843-2320 or 1-800-631-1369
HAAKEBUCHLER Instruments, Inc. CIRCLE 95 ON READER SERVICE CARD
MULTI-SAMPLE/LARGE VOLUME
200 VIAL SPEED VAC EVAPORATOR/CONCENTRATOR FOR R E S E A R C H A N D CLINICAL LAB
• Virtually 100% solids recovery • No bumping or foaming losses • Handles oversize containers • Special microplate rotor
Applies both vacuum and centrifugal force to hold solids while evaporating solvent. Proven over years of reliable service. Complete line of accessories includes vacuum, traps to - 90°C, heating, switchover-tovacuum pump system, and extensive rotor library including our special 8-Microplate Rotor. For complete details and ordering information, call or write:
\ SVC200H Speed Vac" Concentrator for hormones, anti-depressants, acetaminophen, prostaglandins, antibodies, concentration and harvesting
Savant
INSTRUMENTS, INC.
110-103 Bi-County
Blvd.,
Farmingdale,
NY 11735 · (516)
249-4600
CIRCLE 192 ON READER SERVICE CARD
ANALYTICAL CHEMISTRY, VOL. 58, NO. 7, JUNE 1986 « 807 A