Power unit w i t h platform
With utility box carrier
. 20.240 ™ , „ . * · .
Eberbach
With utility box & vertical rods
SMALL TABLE TOP RECIPROCATING SHAKER
• Minimum space required—14" χ 12" χ 9%" high
CORPORATION
With platform & tiering posts
P.O.
This exceptionally wide speed range readily adapts this Shaker to low speed motion studies, as well as violent agitation. Stroke can be adjusted to y2", 1" or V/Î'. 115 volt, 50/60 cycle. Shaker Power Unit with platform, Catalog No. 5850 $195.00 Write for Bulletin No. 750
Box 1 0 2 4 Ann Arbor, Mich. 4 8 1 0 6
Circle No. 6 on Readers' Service Card
THE N.I.L. 1Ο-CHANNEL FLOW PUMP A NEW CONTINUOUS-FLOW PERISTALTIC PUMP FOR COLUMN CHROMATOGRAPHYUNMATCHED FOR DURABILITY, USE IN COLD ROOMS, HEAD-PRESSURE CAPACITY, AND FREEDOM FROM TUBING WEAR.
•
Flow rate infinitely variable from less than 0 . 0 5 m l / m i n to 5 0 0 m l / m i n .
•
Conformai geometry of tubing support elimi nates local stresses, minimizes pulsing, and avoids tubing wear.
•
Delivery volume controlled by varying tubing diameter a n d motor control.
•
Accommodates tubing up to % " I.D.
•
Can pump against 6 0 - f o o t head pressure.
National Instrument Laboratories, Inc. NIL
12300 Parklawn Drive, Rockville, Maryland
20852
In Metropolitan Washington, D. C. PHONE: 933-1144
AREA CODE: 301
Circle No. 187 on Readers' Service Card
132 A
•
ANALYTICAL CHEMISTRY
Bulletin 5-2800