Manufacturers' Literature
GC Application Reports Four-page Application Reports deal with specific procedures based on gas chromatography and include hightemperature motor oil analysis with the flame ionization detector, 5020 442 and with the specific nitrogen detector, 5030 443
Polymers An 8-p catalog, 731, lists over 200 research-grade polymers selected or synthesized for highest purity. The materials can be used as analytical standards. Cellomer Assoc, Inc. 435
Electrophoresis Reagents A 12-p electrophoresis pamphlet lists 169 reagents for electrophoresis and 90 literature references to their use. Polysciences, Inc. 436
Shakers A 6-p brochure describes the unique build-up design of a complete line of wrist action shakers. Burrell Corp. 437
No. 5034 deals with the analysis of milk fat methyl esters. Hewlett-Packard 444
Water Stills A 6-p folder describes a new series of "energy saving" water stills which operate on the principle of "Thermocompression." Barnstead Co. 446
IR Sample Cells A 4-p brochure describes the following four sample cells used in infrared spectroscopy: demountable cell mount, sealed liquid cell, sealeddemountable cell, and variable pathlength liquid absorption cell. PerkinElmer Corp. 447
UV/VIS Spectrophotometer
Plastics Catalog
An 8-p brochure describes Model 55 UV-Visible spectrophotometer which with suitable accessories can be converted to semiautomatic or automatic operation. Perkin-Elmer Corp. 438
The 1974 catalog of plastics labware, 56 p, includes a chemical resistance chart. New products include labware, notebooks, pressure-sensitive labels, and protective coating for lab furniture. Nalgene Labware Div. 448
Optical Teaching Aids
Spectroscopic Glassware
A 40-p catalog describes optical instruments for natural sciences and technical teaching. Information on applications and available accessories is also given. E. Leitz, Inc. 439
Catalog 5007, 48 p, covers glassware and accessories for NMR and EPR spectroscopy. Wilmad Glass Co., Inc. 449
Trace Chemical Detection
Quantitative TLC
A 6-p folder describes the company's complete line of chemical test kits for environmental and industrial testing. Over 30 kits based on classic colorimetric methods are covered. Koslow Scientific Co. 440
A 2-p sheet provides a list of technical papers that deal with quantitative thin-layer chromatography. Subjects covered include drugs, steroids, amino acids, lipids, and sugars. Schoeffel Instrument Corp. 450
CHN Analyses
LSC Cocktail
A 22-p booklet describes in detail improved techniques for the automatic determination of carbon, hydrogen, and nitrogen with an automatic CHN + O analyzer (based on combustion gas chromatography). Sanda, Inc. 441
An 8-p brochure describes the use of Aquasol in liquid scintillation counting. Included is a list of over 130 published references and 12 specific application descriptions. New England Nuclear 451
Fluorescence News
Mass Spectrometer
Fluorescence News, Vol 7, No. 5, 8 p, includes articles on the influence of heteroatoms on the fluorescence and phosphorescence spectral maxima of aromatic molecules and basic fluorometry for technicians. American Instrument Co. 445
A 24-p color brochure describes the MAT 311 double-focusing mass spectrometer. Sections deal with technical features, sensitivity, automatic data processing, metastable ions, inlet systems, and specifications. Varian MAT/U.S. Operations 452
478 A · ANALYTICAL CHEMISTRY, VOL. 46, NO. 4, APRIL 1974
Air Generator A 4-p bulletin describes the 737 Series pure air generators. The instruments provide reliable sources of clean dry air for instrumentation. AADCO 454
Radioisotope Assays A new brochure covers 40 clinical applications of radioisotope assays now available from the company. Included are drugs, vitamins, and biological substances. Damon/Medical Services Group 455
Ion-Exchange Celluloses A 20-p manual gives complete descriptions of Whatman advanced ionexchange celluloses, microgranular and fibrous. H. Reeve Angel & Co., Inc. 456
Clinical Products Med-Lab Reporter, Vol 13:3, 8 p, offers capsule reports on new products for the clinical lab. Information is provided on simplified radial immunodiffusion tests, 11 new kits for radioactive assays, Safe-Tin containers for flammable histological solvents, and other lab products. Fisher Scientific Co. 457
Mineral Powder Diffraction Data A descriptive brochure on a Data Book and Search Manual dealing with "Selected Powder Diffraction Data for Minerals" is available. Joint Committee on Powder Diffraction Standards 458
Mixed and Specialty Gases An up-to-date pricing catalog for users of mixed and specialty gases includes information on regulators, valves, manifold systems, and other accessories. Big Three Industries 459
Clinical Enzyme Testing Procedures A new series of methods data sheets on semimicro enzyme testing procedures with the company's Enztrate test kits is available for determination of GOT, GPT, LDH, CPK, HBD, and AP tests. The procedures are used with the Model 24 spectrophotometer "Sipper" system. Beckman Instruments, Inc. 460
