How do you get the highest resolution consistently in ion exchange chromatography?
Manufacturers' Literature
Jet Sensor. A 2-page illustrated data sheet, FAD-397, describes a fluidic interruptible jet sensor. This device de tects the presence of an object passing between two opposing jets. Corning Glass Works, Corning, Ν. Υ. 14830 626
Incubator Catalog. A 20-page incuba tor catalog, ICB-69, fully describes and illustrates the company's complete line of incubators and includes full specifi cations, performance data, and ordering information. Hotpack Corp., 5004 Cottman Ave., Philadelphia·, Pa. 19135 627 Laboratory Furniture Catalog. Twelve pages illustrate how more than 200 GF modular units can be combined into an unlimited number of assemblies for laboratories of any size. Actual instal lation photographs and schematic dia grams give details. General Fircproofing Co., E. Dennick Ave., Youngstown, Ohio 44501 628 Laboratory Seating Accessories.
An
8-page catalog illustrates and describes a complete line of Contempra labora tory stools, chairs, and seating acces sories. All have been "biomechanical engineered" for maximum comfort. Fisher Scientific Co., 312 Fisher Bldg., Pittsburgh, Pa. 15219 629
Only by using Bio-Rad AG® resins! BIO-RAD AG resins represent the highest level of purity available for ion exchange chromatography. AG resins are exhaustively purified and sized to specific ranges to assure sharp resolution and highest reproducibility. For example, the maximum iron con tent in AG-1 anion resin is 0.00005%. For the full story on BIO-RAD and its role in ion exchange technology—in cluding valuable data on Bio-Rex resins, specialty resins, resin selection, regeneration and applications — send for our general catalog, Price List U.
BIO-RAD Laboratories Dept. A-6 · 32nd and Griffin Ave. Richmond, California 94804 Circle No. 76 on Readers' Service Card
Microliter Syringes. A 4-page bulletin describes the company's microliter sy ringes. These syringes come in four basic types: fixed needle, fixed needle with guide bar, interchangeable needle, and interchangeable needle with guide bar. Shandon Scientific Co., Inc., 515 Broad St., Sewickley, Pa. 15143 630
M=g
RT PV
Determine molecular weights in five minutes. How? E a s y . . . Use the new Finnigan Model 2000 Molecular Weight Analyzer. Your most inexpe rienced lab technician can do a molecular weight determination of liquids and gases between mass 15 and 400 with up to 1% accuracy in five minutes or less. Based upon the ideal gas law, the Model 2000 accurately measures the pressure produced by a weighed quantity of sample at constant temperature and volume. The most difficult task is weighing the sample! Simple to use. Plug the Model 2000 into a l l O volt wall outlet, connect a vacuum line, calibrate it with some known compounds, and it's ready to use. Priced under $4,000. In short, we have taken the tinkering and perhaps the fun out of molecular weight and vapor pres sure measurements. From now on, it's just routine. Why not write us and ask for our brochure on the Finnigan Model 2000 Molecular Weight Analyzer.
Fast Fourier Transform System. A 16page booklet describes and gives in structions relating to the company's fast Fourier transform system. The sj-stem uses the Series 1070 signal aver aging computers. Fabri-Tek Instru ments, Inc., 995 Applegate Rd., Madi son, Wis. 53713 631 Laboratory Chemicals.
The new IT. S.
288-page edition of the BDH Labora tory Chemicals catalog covers a full range of laboratory reagents, biochemicals, indicator and test papers, chroma tography columns, density gradient ma terials, and cellulose ion exchangers. Gallard-Schlesinger Chemical Mfg. Corp., 584 Mineola Ave., Carle PL, L. Ι., Κ. Υ. 11514 632
finnigan FINNIGAN INSTRUMENTS CORPORATION
2631 Hanover Street, Palo Alto, California 94304 Circle No. 61 on Readers' Service Card
ANALYTICAL CHEMISTRY, VOL. 42, NO. 3, MARCH 1970
·
125 A
