News and Views Rlllf ™
Free column offer good only from October 1 through December 31,1975
anew MicroPak preparative LC columi and get a IHAtchin(1 •••eilwIMIilJ
That's right, to get you to try a matched pair of
âllâlvtiCfll MicroPak columns eiieijf «'val for preparative ΓΠΐΐΙΙΤίη L C . . .we'll give you the ^ * V " M I • •• • analytical column free. EBEE This isn't a giveaway; it's * m •••β an investment. We believe that once you've tried MicroPak matched column pairs for prep, you'll be coming back for more. Here's why: Both columns in your matched pairs are packed by the same method with the same small totally porous particles and with the same bonded phases applied by the same technique. Result: you can optimize your LC separation on the ana lytical column and then scale up on the matching preparative column using virtually the same conditions. No big adjustments, no surprises. Both columns make separations fast. You save time and effort. And you also save sample and solvent because you can do more on the small analytical column with full confidence it will apply when you scale up to prep. MicroPak matched column pairs are available for adsorption and partition chromatography. The adsorption columns are packed with porous 5- or 10-micron silica or 10-micron alumina. The partition column pairs are packed with alkylamine, alkylnitrile oroctadecylsilane bonded to 10-micron LiChrosorb. If you're doing preparative LC in these modes, MicroPak matched pairs will make it easier for you to scale up and get the fractions you're after. You'll be glad you gave them a try. For full details circle the reader service number or write Varian Instrument Division, 611 Hansen Way, Palo Alto, Ca. 94303.
varian CIRCLE 226 ON READER SERVICE CARD 1072 A · ANALYTICAL CHEMISTRY, VOL. 47, NO. 12, OCTOBER 1975
Matheson Gas Products has ac quired C & Ε Instruments, Inc., of Horsham, Pa. C & Ε is known for in novative technology in flow meters; Matheson makes and sells a wide vari ety of gases and a complete line of equipment for controlling, measuring, and detecting gases. Ortec, Inc., Oak Ridge, Tenn., plans to open a new office in Brazil and to add manufacturing facilities there in early 1976. The office, chartered under the name "Ortec Instrumen tes Limitada," will be located in Sao Paulo and will represent selected highly technical companies such as Biomation, Bicron, AED, and the Electro Optics Div. of EG&G, in addi tion to providing service for Ortec cus tomers. Dow Chemical Co. has granted a li cense to International Plasma Corp., Hayward, Calif., on a new ana lytical instrument technology, ion chromatography. A new subsidiary, Dionex Corp., has been established in Palo Alto, Calif., to market products based on the technology. Sierra Instruments, maker and seller of particulate samples, impactors, air velocity meters, aerosol generators, and noise level meters, has moved to new quarters at P.O. Box 909, Village Square, Carmel Valley, Calif. 93924. 408-659-3177 Technicon Industrial Systems, Tarrytown, N.Y. 10591, 914-631-8000, has commenced publication of a quarterly newsletter containing information on the latest developments and happen ings in automated analysis for envi ronmental sciences. The first issue features articles on the status of water quality methods, and an update on au tomated analytical instrumentation at the Pennsylvania Dept. of Environ mental Resources. Environmental Sciences Assoc, Inc., 175 Bedford St., Burlington, Mass. 01803, 617-272-1200, has ex panded its laboratory services to in clude the analysis of blood samples for erythrocyte protoporphyrin (EP), he matology parameters (RBC, WBC, MCV, HCT, and HB), and lead plus other trace metals by advanced forms of anodic stripping voltametry. Infor mation on these services is available from R. M. Griffin, director of Labora tory Operations at ESA.
