S U Ρ Ρ LY CENTER
LABORATORY MATERIALS
Lyophilization Apparatus
"EASTERN" REAGENTS—From A to Ζ
•M
Available from local dealer Write for Bulletin PEM L-l
A l u m i n o n · B i l i r u b i n · C a l c e i n · D u l c i t o l · Esculin Fructose · G r a m i n e · H e m a t o x y l i n · I o d i n e T i t r a t i o n I n d i c a t o r Luminous Pigment for Thin Layer Chromatography Malonic Acid · Ninhydrin · Orcinol · Phloroglucinol · Quinalizarin Reinecke Salt · S o d i u m B e n z e n e Sulflnate · T e t r a h y d r o x y q u i n o n e Urea Nitrate · Veratrole · X a n t h e n e · Zinc M e r c a p t o b e n z i m i d a z o l e A l s o : D i t h i o l — s e n s i t i v e r e a g e n t f o r Sn
MACALASTER SCIENTIFIC CORPORATION 243 BROADWAY · CAMBRIDGE, MASS.
Write for list K-63 of other orsanic chemicals Tel:
Zip Code 07440
(Code 201) 696-1700
EASTERN CHEMICAL CORPORATION 1919—1963 L a M o t t e Chemical Chestertown, M a r y l a n d U . S . A . Specialists in Colorimetric Techniques Reagents—Standards—Comparators Send for illustrated Controls Catalos Dept. A C
INSTRUMENTS FOR LEASING
4 flask unit 5 sizes of interchangeable flasks · 100-800 ml
BOX K
PEQUANNOCK, N.J.
Gas Chromatograph, BarberColman 61C with flame and ionization detectors. Write K-S-H Plastics, Inc. 10212 Manchester, St. Louis 2 2 , M o . or call M r . E. Edelmann 31 4 Y O 6-3111
Best for Fluoride
AMADAC-P
TM
Convenience-packaged mixture of lanthanum chelate of 3-aminomethy!alizarin-NN-diacetic acid, buffers and stabilizers, affords accurate, sensitive and convenient quantitative colori metric method for fluoride. SO g. (for 100 detns.), with bibliography and complete instructions $15
BURDICK & JACKSON LABORATORIES
T H E WORLD'S FINEST LABORATORY CENTRIFUGES Refrigerated · Angle · Horizontal Continuous Flow · Special Application Low to Superspeed · Automatic · Manual Small to Large Capacities INSTRUMENTS Ultra-Microtomes · Homogenizers Cell Fractionators · Pipettes
m FREE: 20 page Product Jvan
1953 S. HARVEY ST., MUSKEGON, MICHIGAN
Guide-write
Sorvall,
lnc.
Pearl S t . , N o r w a l k , C o n n .
View Lab Aid
EQUIPMENT ELECTRIC
• • • • •
PERKIN-ELMER .
ANALYTICAL CHEMISTRY
*
RED
*
BLUE
*
YELLOW
LGT.
Vi
Giant 8
Dial
GRA-LAB INTERVAL T I M E R S Automatic signalling and switching. Various models, each with 3600 possi ble settings. GRA-LAB MICRO T I M E R S 1/10 sec. or 1/1000 min. stop clocks. Remote start stop control. Write for catalog.
DIMCO-GRAY 2 1 0 E. SIXTH ST.
164 A
SPIN
P/vof Ring Octagonal Part
Gas Chromatographs Spectrophotometers Special Instruments Instrument Accessories Instrument Building Blocks
Exactly the right instrument for your appli cation . . . on the lease or lease/purchase plan that will best fit your budget or finan cial accounting requirements. For details, write to Instrument Division, Perkin-Elmer Corporation, 751 Main Ave., Norwalk, Conn.
^ C O L O R CODED
1
% %
We 1%
EACH
1.60 1.65 1.76 1.87 1.98 2.31
LABORATORY PLASTICWARE FABRICATORS
COMPANY
DAYTON 2, OHIO
MICROBAR VaxVe 1.98
TEFLON Molded Magnetic Stirring Bars. Seamless molded—Alnico V Per manent Magnets—Leakproof—Vacuum and Electrically Tested. Ordered by part number from any Laboratory Supply House.
615 wyandotie
Bc< 213/Kansas City b. Missouri
