DELMAR'S GREASELESS HIGH-VACUUM GLASSWARE
Product Capsules Books. Ozone Applications in Waste & Water Treatment. Ρ4 Books. Physical Methods in Chem istry: Determination of Mass, Trans port, and Electrical-Magnetic Proper ties. Ρ 198
Multi-Ridge 0-RING JOINTS Delmar design is ideal for any apparatus where grease is a problem. Multiple pressure ridges applied to each side of the Viton O-Ring secure vacuum systems down to 10-6 mm Hg. For use in temperatures from —40° to 500°F and pressure systems up to 40 PS1.
Books. Physical Methods in Chem istry: Determination of Thermody namic and Surface Properties. Ρ 198 Books. Physical Methods in Chemis try: Optical Spectroscopic, and Radio activity Methods. Ρ 198
NEW STOPCOCK DESIGN This new Delmar unit has a precision bore body which allows interchanging plugs and other parts. Features include:
Books. Principles Analysis.
• • • •
Viton elastomer O-Rings · Precision bore body Pressure 10-6 mm Hg. Temperature range —40° to 500°F Sizes 0-4 mm opening and 0-10 mm opening
Books. Relaxation in Magnetic Reso nance: Dielectric and Mossbauer Ap plications. Ρ1
Delmar®
Books. Rydberg Series in Atoms and Molecules. Ρ1
Ask for Catalog A-70.
COLEMAN-DELMAR
of
Instrumental Ρ 87
Books. Systematic Analysis of Sur face-Active Reagents, 2nd edition. Ρ 198
GLASS PRODUCTS 31S M a d i s o n St., M a y w o o d . Illinois 6 0 1 5 3 " V I S I T BOOTH 3, F.A.S.E.B. M E E T I N G , A T L A N T I C
CITY"
Books. Trace Analysis by Mass Spec trometry. Ρ1
CIRCLE 41 ON READER SERVICE CARD
Books. Treatise on Analytical Chem istry. Ρ 198
1000V Electrophoresis Apparatus with cooled platen ...ideal for twodimensional TLC/TLE
Cells, spectrophotometer. Info on fused quartz or glass seam cells, for TJV, VIS, near IR, or customized. Ρ 123
Take the fullest advantage of high voltage TLE techniques which can produce separations of complex mixtures in less than one hour with very small amounts of samples. This Shandon apparatus is particularly useful i η two-dimensional TLC/TLE f or the'sepa rat ion of peptide " m a p s " or "fingerprints." Features include cooled aluminum platen and a safety micro switch current cut-off actuated when the transparent lid is removed. A lOOO-volt , 100 mA power supply is available. For two-dimensional work a wide selection of flat-bottom Chromatanks® and accessories are offered. Write for complete catalog of Shandon TLC/TLE equipment to Shandon Southern Instruments, Inc., 515 Broad Street, Sewickley, Pa. 15143 (Pittsburgh District).
SHANDON P I T T S B U R G H
128 A
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L O N D O N
Calorimeters. New differential scan ning unit has wide temperature range, higher baseline quality, high sensitivity, instantaneous temperature response, and precisely linear temperature cali brations. Ρ 158
F R A N K F U R T
CIRCLE 175 ON READER SERVICE CARD ANALYTICAL CHEMISTRY, VOL. 4 4 , NO. 4 , A P R I L 1 9 7 2
Chemicals, reagent. Catalog lists over 50 products for atomic absorption pho tometry. Ρ 24 Chemicals, reagent. Catalog on ion exchange resins, anion and cation, in 44 types and bead sizes. Ρ 28 Chemicals, reagent. Data on acids, bases, solvents, electronic chemicals, specialty chemicals, custom chemical synthesis. Ρ 33 Chemicals, reagent. Catalog on or ganic, inorganic chemicals and reduc ing agents. Ρ 52 Chromatographs, gas. In this discrete analysis module the injection port, col umn and detector are handled as a single unit. Up to 4 modules may be installed together. Ρ2
