PFALTZ & BAUER, INC. - ACS Publications - American Chemical

May 18, 2012 - PFALTZ & BAUER, INC. Anal. Chem. , 1964, 36 (4), pp 143A–143A. DOI: 10.1021/ac60210a840. Publication Date: April 1964. ACS Legacy ...
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IMPORTANT ANNOUNCEMENT!

EDNALITE Air-borne radiation detector system shown warns against over-tolerance levels of tritium or other radioactive gases in the atmosphere. Called the 9160 Tritium Monitor, the instrument gives a reading of average dose levels and gives a rapid, positive warning of accidental spills with a self-contained alarm. The instrument can be used as a permanently stationed area alarm or can be easily carried from one laboratory to another for survey monitoring. It finds use in accelerator laboratories using tritium targets and at biological research or clinical testing laboratories counting carbon14 or tritium samples. Nuclear-Chicago Corp., 359 East Howard Ave., Des Plaines, III. 427

Macro/System

for COMPLETE

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Viewing Microscope The Model V-301 viewing microscope is a laser system accessory that automatically focuses the laser beam when visually focused on the laser target. The Model V-301 provides visual target observation by means of a precision optical reticle system. Various magnifications are possible; focal lengths can be varied by means of interchangeable lenses. Maser Optics, Inc., 89 Brighton Ave., Boston 34, Mass. 428

Dissolved Oxygen Analyzer An instrument for measuring concentrations of dissoh'ed oxygen is based on a system designed by F. J, H. Mackereth of the Freshwater Biological Association. The instrument, which is portable and battery powered, comprises an electrochemical cell which contains two electrodes with a large surface area. The electrolyte is a saturated solution of potassium bicarbonate in a membrane of polyethylene tubing. A linear relation between dissolved oxygen and instrument reading and an overall accuracy ± 1 % over the temperature range 0-30° C. have been achieved. W. G. Pye Ltd., Granta Works, Newmarket Road, Cambridge, England; and Electronic Instruments Ltd., 13 Grosvenor Place, London, S. W. 1, England. 429

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1001 other laboratory applications.

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PFALTZ

1900

& BAUER,

INC.

153 WAVERLY PLACE, NEW YORK, N.Y. 10014 · ALgonquin 5-0300 Circle No. 76 on Readers' Service Card VOL. 36, NO. 4, APRIL 1964



143 A