Chromosorl) 101

Lambda Dial $49.00. For more details, please contact your dealer salesman or write to: 1802A. Second Street, Berkeley, California. 94710. Phone: (415)...
17 downloads 0 Views 327KB Size
Introducing an entirely new GLC column packing for fast, efficient separation

Chromosorb* 101 Chromosorb 101 is a porous polymer resin developed and synthesized by Johns-Manville for use as column packing in gas-liquid chromatography. It is especially effective in the rapid, efficient separation of free fatty acids, glycols and alcohols, and also separates esters ketones, aldehydes, ethers, and both aliphatic and aromatic hydrocarbons. Chromosorb 101 is thermally stable at temperatures in ex­ cess of 325°C. Consequently, its applicability extends to high molecular weight (C22) compounds. For more specific information, write for our bulletin I f f i FF-177. Johns-Manville, Box 1960, Trenton, N. J. sJÙ\

Johns-Manville «Chromosorb is a Johns-Manville registered trademark for its brand of products develoDed for USP as support material or adsorbents for gas chromatography. B a u c i s aeveioped for use

IS A DISCOVERY HIDING BEHIND YOUR LAST SIGNIFICANT FIGURE?

Rapid separation of 10 alcohols. Column 6 ft χ 3 mm I. D. glass "LP'T 1 0 0 / 120 mesh Chromosorb 101, 200°C, 50 ml/min helium, 33 psig backpressure. Injection conditions: Ο.ΙμΙ, range 10 J , attenuation χ 128. Flame detector.

Many of the great discoveries of the last century were triggered by unexpected differ­ ences m assumed values. Ε = M C ! is a prime example. With the aid of vastly im­ proved measuring equipment, who k n o w s what the next great discovery will be ? If your research involves pipeting and dilut­ ing, the best measuring instruments y o u can l i U f e a r e fabindustries Automatic RE­ P I P E T S ™ and A u t o m a t i c Dilutors. L/I un­ conditionally guarantees 1% accuracy and 0.1 % reproducibility. Once you try these instruments, you'll be another satisfied cusD ° T m ! ^ o n e , ° £ . m a n y · T h i s y e a r · s a l c s of R E ­ PIPETS and Dilutors passed the 25,000 m a r k ' Precision is not the only virtue of L/I in­ struments. They're simple to operate, selfcleaning, and they allow you to handle any liquid whatsoever, hot or cold. This includes concentrated acids, concentrated alkalies, vola­ tile solvents, and chlorinated hydrocarbons L/l instruments dispense, dilute and pipet di­ rectly from your reagent bottles, completely eliminating the hazards of m o u t h pipeting and the dangerous transfer of reagents AU R E P I P E T S and Dilutors have an air in­ let to which filters may be attached to exclude particulates, moisture, carbon dioxide or oxygen. Volumes? L/I instruments handle all volumes from 0.5 microliter to a deciliter Volumes below 100 L a m b d a s may be dialed directlv with the L/I L A M B D A - D I A L T M Cat. N o . 101. R E P I P E T S and Dilutors are furnished in 1 5 10, 20, and 50 ml sizes. (Each instrument is accurate and adjustable over its entire scale ) Prices: R E P I P E T S $47.50, Dilutors $89.50 L a m b d a Dial $49.00. F o r m o r e details, please contact your dealer salesman or write toSecond Λ-,2Λ Street, Berkeley, California 94710. Phone: (415) 843-0220.

A. methyl Β. ethyl C. iso-propyl D. n-propyl E. sec-butyl F. iso-butyl G. n-butyl H. 2-pentanol I. iso-amyl J. n-amyl

LABINDUSTRIES Berkeley, California Cable: GATE-MERC, Los Angeles Circle No. 54 on Readers' Service Card

Circle No. 7 on Readers' Service Card VOL. 40, NO. 8, JULY 1968

·

65 A