CELLS, INC

(212) 544-9534. Circle No. 54 on Readers' Service Card. "Microchemical and. Instrumental Analysis”. 76-page technical manual ADM-70 explains in deta...
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Our Ad is not Perfect.... but our

CELLS are

and we have Standard . . . Flow-through . . . Constant-temperature Anaerobic . . Special design Cells. SUPRASIL — I N F R A S I L — S P E C I A L OPTICAL GLASS (far uv-ir) Also available

(near uv-visible)

ULTRAVIOLET LIGHT SOURCES ...to m e e t e x a c t i n g s o l v e n t

Deuterium Lamps ( 3 0 - 6 0 watts — air cooled) (1 5 0 watts — water cooled)

M e r c u r y V a p o r Lamps Hollow C a t h o d e Lamps Power Supplies Write for literature to

H E L L M A CELLS, I N C .

needs

Acetone · Acetonitrile . Benzene · Butanol-1 · Butanol-2 · Carbon Tetrachloride .Chloroform · Cyclohexane . Dimethyl Formamide · Di­ methyl Sulfoxide . Dioxane. Ethyl Acetate. Ethyl Ether ."Heptane",95-9° • Hexane, 68-69° · Methanol . 2-Methoxyethanol · Methylene Chloride • W-Methylpyrrolidone. Pentane . Petroleum Ether, 30-60°· Propanol-2 • Tetrahydrofuran · Toluene · Trimethylpentane . Others... Ask for Bulletin BJ-13J

U.S. Agencies use r.S.S.

BURDICK & JACKSON LABORATORIES, INC.

Box 544, Borough Hall Station, Jamaica, N. Y- 11424 Tel.: (212)544-9534

616 PA 2-2310

MUSKEGON. MICHIGAN 49442 Circle No. 202 on Readers' Service Card

Circle No. 54 on Readers' Service Card

FLAMELESS BLOW TORCH

FOR FAST HEAT

uP to 1,000 F. For applications requiring quick concen­ t r a t e d heat blast u p t o 1000° F., w i t h o u t flame. S o f t e n , f o r m , mold a n d patch plas­ tics, etc. T e m p e r a t u r e varied by air i n t a k e a d j u s t m e n t . 110-230 V. A C m o t o r 3 wire p l u g . A l l 110 V . models equipped w i t h adapter for 2-prong receptacle. 8 f t . heavy d u t y cord. I n t e r m i t t e n t d u t y . O t h e r models available w i t h lower t e m p , ranges. Most of t h e big names i n i n d u s t r y use M A S T E R H E A T G U N S i n laboratories or i n produc­ tion. Model H G 501-500° F. 115V—$49.90 (Others $44.30 to $67.85)

"Microchemical and Instrumental Analysis" 76-page technical manual ADM-70 explains in detail how the precision of Millipore filtra­ tion is used in microchemical analysis by in­ frared and ultraviolet spectroscopy, visible light microscopy, ring oven analysis, flame photometry, x-ray fluorescence, activation analysis, spot tests, autoradiography and many other methods. Available free of charge.

Millipore

Circle No. 14 on Readers' Service Card ·

ANALYTICAL CHEMISTRY

Write today to Dept. 16 Send for i n f o r m a t i o n on hair dryers, hand and foot massagers, vibrators, grass t r i m m e r s , h a i r c l i p p e r s , food blenders, and air purifiers. See our specs in V S M F

CORPORATION

115 Ashby Rd., Bedford, Massachusetts 01730

166 A

AIR HEATER BLOWER For q u i c k electrically heated air u p t o 750° F. For accelerating drying processes or for localized h e a t i n g . B . T . U . 3400. Air velocity 2000 F P M 110-230 V . A C only. 3 wire plug. A l l 110 V . models equipped w i t h adapter for 2 prong receptacle. 8 f t . heavy d u t y c o r d . C o n t i n u o u s d u t y , 2 " d l a . χ 3 " long discharge nozzle. Model AH-501-500° F. 115V-$59.95 (Others f r o m $56.65 t o $90.25)

Master

APPLIANCE CORP., RACINE, WISCONSIN Circle No. 71 on Readers' Service Card