30 A
ANALYTICAL
CHEMISTRY
PH O T O V O L T Line-Operated Super-Sensitive Electronic MULTIPLIER-PHOTOMETER M O D . 5 2 0 - A F o r the exact m e a s u r e m e n t of extremely low light v a l u e s down to 1/10,000 microlumen. For Absorption and flame photometry Colorimetry through microscopes Scintillation measurements on crystals Fluorescence trace analysis Monochromatic color densitometry Measuring high densities on micro areas Light measurements through telescopes Write for Bulletin #360 to
PHOTOVOLT CORP. 9 5 Madison Avenue
^ACCURACY
N e w York 16, Ν. Υ.
— at High Operating Speed i
with d&patcét Laboratory Ovens M Despatch Laboratory and Production Ovens are ideally suited to all types of research . . . testing . . . production control. They are designed to provide the closest heat uniformity through ev ery inch of the work chamber . . con sistently accurate temperature control at all heats . . . ample speed to process
capacity loads at any desired operating temperature. Chemical and analytical, drying and baking, preheating and aging, steriliz ing and curing, food dehydrating—these are just a few of the uses. Available in six models, with inside dimensions rang ing from 13"xl3"xl3" to 37"x25"x50".
• Positive Air Intake • Guaranteed Hear Elements 2 7 0 0 to 1 2 , 0 0 0 Watts • High Volume Fan • Air Velocity Control • Accurate Indicating Control • M o d e r n D e s i g n — R o u n d e d Corners Manufacturers
of
Ovens
DESPATCH Established
OVEN
CO.
for
All
Purposes
ASK FOR BULLETIN NO. 106
in 1902 341 DESPATCH BLDG.
·
MINNEAPOLIS 14, M I N N .
