Manufacturers' Literature
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SULFUR DETERMINATOR WITH DIGITAL DISPLAY
Water testing, Bull. 8 describes Model 50 portable lab for water and waste testing. System includes a miniphotometer and can perform 21 tests. Delta Scientific. 516-884-4422 469 Glassware, 60-p illustrated brochure contains over 1000 different items including Technico volumetric glassware and pipets, Sintaglass sintered filtration and gas distribution apparatus, and ground joint apparatus. Gallenkamp, P.O. Box 290, Technico House, Christopher St., London EC2P 2ER, England 1973-1974 General catalog includes 4500 lab instruments, equipment, and supplies for industrial research, chemistry, agriculture, biology, and health sciences. Cole-Parmer Instrument Co. 312-647-0272 470 Automatic water sampling, 16-p catalog illustrates and describes 30 different water sampling methods. All designs are new as of September 1972. Sigmamotor, Inc. 716-735-3616 4 7 1
Model No. 765-100
The LECO DB-64 fully automatic Sulfur Titrator can be used to determine sulfur content of steels, irons, nonf e r r o u s m e t a l s , fuel oils, o r e s , slags a n d o t h e r m a terials. Total analysis time varies from three minutes for steels to four minutes for fuel oils to nine minutes for some inorganic materials. Results, as percent sulfur or ppm, are r e a d d i r e c t l y from an e l e c t r o n i c digital display. An optional automatic weight compensator eliminates any additional calculations. Range is from 2 p p m to 1 0 0 % w i t h accuracy of ± 4 % of sulfur cont e n t . A n d , at t h e 1650° C temperatures possible in the LECO I n d u c t i o n F u r n a c e , sulfur recovery is consistent. The LECO BD-64 has been designed for easy set up and operation.
LECO CORPORATION 3000 LAKEVIEW AVENUE ST.JOSEPH, MICHIGAN 49085 . U.S.A. C A B L E ; LECO
PHONE (6161 9 8 3 - 5 5 3 1
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JEOL News, Vol 10c, No. 3, 28 p, includes application information on scanning transmission microscopy, electron microscopy, electron probe, and image analyzer. JEOL, Ltd. 617-396-8620 472 F l u o r e s c e n c e N e w s , V o l 6, N o . 5, 8 p,
contains an article on signal-to-noise ratio in atomic fluorescence flame spectrometry and condensed-phase inorganic fluorimetry by J. D. Winefordner and T. C. O'Haver. American Instrument Co. 301-589-1727 473
Application Notes Thermal analysis system, 8-p, describes instrumentation and a number of applications for differential thermal analysis, thermoluminescence, and oxyluminescence. McKee-Pedersen Instruments 474 Dye lasers in biology, Newsletter #3, 4 p, applications in fluorescence microscopy, focused laser microscopy, and flash photolysis of carbon monoxide in hemoglobin of tunable dye lasers are described. Synergetics Research, Inc. 475 X-ray spectrometer, 4-p newsletter describes use of Si (Li)-dispersive X-ray spectrometers in environmental analysis. Nuclear Semiconductor 476 Spectropolarimetry, Jasco application note, 16 p, describes measurement parameters, analytical procedures, and equations for optical rotatory dispersion and circular dichroism. Durrum Instrument Corp. 477
ANALYTICAL CHEMISTRY, VOL. 4 4 , NO. 1 4 , DECEMBER 1 9 7 2
DOES ALL LABORATORY CLEANUP CHORES BEST! Sorg's disposable LABORATORY towels not only go after lab spills with a relentless thirst, they're also great for every other lab cleanup chore. Big—131/2 by 18 inches—they're highly absorbent, have great wet strength. They're ultra-soft, lint-free and ideal for cleaning and polishing any glass surface, instrument or container. Use optical equipment in the lab? These towels are unexcelled for lenses and all delicate surfaces — for drying wet film too. The perfect answer for all glassware "shine u p " operations. Write Sorg for free samples—and the name of the distributor nearest you.
SORG THE S^RG PAPER COMPANY · M i d d l e t o w n . Ohio 45042
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