PUMP WITHOUT CONTAMINATION
varistaltic pump
Electro phoresis made easy
Pumps liquids / Λ » or gases / f r safely Fluids never come in contact with any part of pump... pass only through chemically inert tubing Flow rate from 3 ml. to 6200 ml. of water per minute...$159.50 DELIVERS DROPS T01800
C C PER MIN.
ministaltic pump
Ρ The Millipore PhoroT. Slide Electrophoresis * J -t System makes life easier for people who are bothered by c o m p l i c a t e d separation methods. It includes unique support strips, c o m p a c t cells, a power supply and a densitometer w h i c h dis plays density patterns on a cathode ray tube. Write for a copy of Bulletin P E - 1 . Millipore C o r p o r a t i o n , Bedford, Mass. 01730.
Uniform flow, one-knob control of corrosive liquids. Accurate little workhorse has been tested for over 10,000 continuous hours of operation. Compact, smooth flow, economical, durable. Liquids come in contact only with chemically inert poly ethylene ... $96.50
GREINER SCIENTIFIC
Millipore
CORPORATION 20-92 N. M o o r · St. Dept. 521, N.Y.. N.Y. 10013
Circle No. 140 on Readers' Service Card
Circle No. 225 on Readers' Service Card
W h a t ' s a g o o d GAS CHROMATOGRAPHY connection?
LA PINE
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A ."D" speaks for itself! C h r o m a t o g r a p h e r s look for low internal v o l u m e , v a c u u m tightness, & repeated make-up in their fittings. G y r o l o k fittings in sizes from 1 / 1 6 " t o 1 " fill the bill beautifully. The new catalog stretches to pages including all these sizes, four basic materials & 25 shapes. A copy awaits your inspection. Call your Hoke distributor or write.
GYROLOK
L a P i n e ' s n e w c a t a l o g " D " is streamlined and updated to present instruments, apparatus and reagents f o r t o d a y ' s l a b o r a t o r y n e e d s in concise, easy-to-use fashion. Write for your free copy today.
LAPINE
SCIENTIFIC COMPANY
6001 S. Knox Avenue, Chicago, Illinois 60629 South Buckhout St., Irvington, N. J. 10533 920 Parker St., Berkeley, Calif, 94710
HOKE MFG. CO · 1 TENAKILL PARK · CRESSKILL, N.J. FLARELESS TUBE FITTINGS
186 A
·
See ACS Laboratory Guide for All Products/Sales Office Circle No. 150 on Readers' Service Card ANALYTICAL CHEMISTRY
Circle No. 203 on Readers' Service Card
