PRODUCT
PROSPECTUS
New, NEW n ^ D simpler FROM Κ V Κ LC clean-up technique ORGANOfUNCTIONAL SILANES
PROSIL-220 PROSIL-221 PROSIL-248
Rheodyne's Technical Note 2 tells how to clean up samples using a new technique that's faster and costs less than conventional purification methods —such as liquid/liquid partition, column chromatography or commercialseparation cartridges. Complex samples can be injected directly into the chromatographic system, where clean uptakes place. Send for Tech. Note #2. Rheodyne, Inc., RO. Box 996, Cotati, Calif. 94928, U.S.A. Phone [707] 664-9050.
PCR has served your needs for small quantities of high purity. silicon and fluorine chemicals for over 20 years. As a result of a major facilities expansion, we are now supplying bulk quantities of several organofunctional silanes. You will find we give the same attention to quality, availability, and service for these bulk chemi cals as you have come to expect for our research chemicals. Our Prosils are used to improve the properties of thermoset, ther moplastic, and elastomeric matrix materials formulated with siliceous materials such as fiberglass, clay, and quartz. For samples, contact: PCR, INCORPORATED
PCR
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THE LC CONNECTION COMPANY CIRCLE 37 ON READER SERVICE CARD
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O N E S O U R C E FOR I N D U S T R I A L & MEDICAL ANALYTICAL CHEMICAL REQUIREMENTS Over 2 , 0 0 0 specific s o l u t i o n s , reagents and chemicals are ready f o r s h i p m e n t at all times. Nearly all orders received are f i l l e d w i t h i n 4 8 hours. • Standardized Laboratory Solutions • Reagent Grade Laboratory Solvents • Karl Fischer Reagent • A P H A , EPA, A S T M , USGS, A O A C Test Solutions & Reagents for Water Pollution Determinations* • A t o m i c Absorption Standards • Buffers (Standard & Color Coded) • Indicating Solutions • Biological Staining Solutions • I n - V i t r o Diagnostic Reagents • Specific custom preparations packaged in needed quantities *Water testing reagents //'sting follows guidelines of EPA regulations pub lished in the Federal Register, Vol. 41, No. 232, dated Wed., Dec. 1, 1976.
mm® ANDERSON LABORATORIES, JNC. P. O . Box 8 4 2 9 Fort W o r t h , Texas 7 6 1 1 2 Phone: ( 8 1 7 ) 4 5 7 - 4 4 7 4 CIRCLE 3 ON READER SERVICE CARD
PO. Box 1466 Gainesville, Florida 32602 (904)376-8246 TWX 810-825-6342
ORGANIC CHEMICALS DIVISION. SCM CORPORATION
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MINIREACTORS
New LC detector with big specs, small price. A t $3,495, a price little more than fixed short wavelength detectors, the new I SCO V 4 gives you all wavelengths from 190-700 nm, high sensitivity, low noise and drift, fast re sponse, and more than 10 times normal deuterium lamp life. Options include a 10 cm built-in recorder and an auto matic Peak Separator. Write: ISCO, P.O. Box 5347, Lincoln, Nebraska' 68505. Or call free: [800] 228-4250. CIRCLE 41 ON READER SERVICE CARD
avoid downtime with continuous water analysis
300 ml 450 ml 600 ml
Convenient PARR Mini-Reactors provide heating, cooling, stirring, sampling, temperature control and other features usually offered only in· larger and heavier bench-scale equip ment. T h e y a r e available in t h r e e i n t e r c h a n g e a b l e s i z e s , 300, 4 5 0 & 600 m l . in all p r i n c i p a l c o r r o s i o n resistant alloys. Pressures to 2000 psig a n d t e m p e r a t u r e s t o 3 5 0 ° C. For details, w r i t e or p h o n e Parr I n s t r u m e n t C o . , M o l i n e , III. 6 1 2 6 5 309/762-7716. CIRCLE 24 ON READER SERVICE CARD
FREE CATALOG Dealers worldwide Products for Process Analysis Use reader service card for more i n f o r m a t i o n
toll free 1-800-525-5940 [HACH]
HACH COMPANY P.O. Box 389 L o v e l a n d , C O 80539
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