chromatograms comparing Fluoropak 80 with two other supports. The Fluorocarbon Co. l-° Labeled Compounds. Catalog of catalog shows more than 50 items such as thermostats, fraction collectors, re corders, stirrers, fluorophotometers, and others. Sixteen pages, illustrated, prices. Schaar and Co. (Lab-Ora tory Vol. 6S). L-10 Labeled Compounds. Catalog of about 48 pages lists large variety of compounds labeled with carbon-14, tritium, deuterium, and others. Prices included. Nichem, Inc. (Isotopic Labeled Compounds, June 1961). L-11
detect and continually record... ^
HYDRAZINE concentration down to 0 . 0 0 5 ppm with the TECHNICON®
AutoAnalyzer® Automatically analyzes or monitors hydrazine content of sample stream
Requests for copies of the following publications should be sent directly to the address shown. Company
A field-proven system ... over 2000 AutoAnalyzers are now auto mating routine wet-chemistry analyses in plants and laboratories throughout the free world . . . analyzing up to 60 repetitive samples per hour and monitoring on-stream continuously. Φ Detects other trace elements too, e.g.; calcium, potassium, sodium, cycloserine, phenol, sugar, etc. A total of 75 fullyautomated determinations now possible, more are coming.
Periodicals
Aminco Laboratory News. The issue has a large number of short items, many of them concerned with applications of various company products. The lead item describes Monsanto's composite use of the Aminco Chromatograph and Thermo-Grav. American Instrument Co., 8030 Georgia Ave., Silver Spring, Md. (Vol. 17, No. 1).
Send for y o u r free abstract
method
kit and brochure AKf today
TECHNICON CONTROLS, INC. RESEARCH
PARK
·
Hilger J-40 Colourmeter
Arcs ir Sparks. This month an illus trated description of Republic Avia tion's materials development laboratory is given. The "Spectroscopist of the Month" is Bourdon F. Scribner of the National Bureau of Standards. United Carbon Products Co., P.O. Box 747, Bay City, Mich. {Vol. 7, No. Z).
measures wide range o f surfaces and transparent materials
Beckman Bits. A new quarterly pub lished by Beckman Instruments' Sys tems Division. The first issue is said to have 14 pages of articles on data proc essing equipment, amplifiers, and sys tems management personnel and tech niques. Beckman Systems Division, Technical Publications Dept., 325 Muller St., Anaheim, Calif. CEC Recordings. The lead article is an interesting, if short, rundown on ion propulsion studies at Electro-Optical Systems. There is some good informa tion in a 3-page article on chemical ap plications of high resolution mass spec trometry. This is always an attractive publication. Consolidated Electrody namics Corp., 360 Sierra Madre Villa, Pasadena, Calif. (Vol. XV, No. $). Chemist-Analyst. The review on the use of chelatochrome indicators in pre cipitation titrations is continued with Part V in this issue. Part V covers de-
C H A U Ν C E Y, N . Y .
Circle No. 130 on Readers' Service Card
HILGE
WATTS The Hilger J-40 Colourmeter is versatile, sensitive, accurate, simple — equally valu able f o r research a n d f o r the control a n d standardization of colour i n industry of such products as ceramics, cosmetics, emulsions, foodstuffs (including sugar), pigments, plas tics, a n d pure chemicals. . . . This new instrument has a n accuracy o f ± .005. It is
a d a p t a b l e t o colour measurement o f trans p a r e n t , semi-transparent, powder a n d crystal line materials; a n d t o opacimetric measure ment of diffusing materials such as translucent plastics, p r i n t i n g papers, etc. Three stand ards of reference are a v a i l a b l e . The J-40 Colourmeter can be used also as an a b r i d g e d spectrophotometer f o r color matching.
For complete specifications ask for Catalog
ENGIS 431
SOUTH
EQUIPMENT
DEARBORN
STREET
A F F I L I A T E D '.VIΤ Η H I L G E R
CH-409.
COMPANY
CHICAGO
5,
ILLINOIS
- ,',4TTS, INC.
Circle No. 148 on Readers' Service Card
VOL. 33, NO. 9, AUGUST 1961 · 117 A
