Double-beam convenience...
A. π the cell rnrH-iirlrivnt
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Double-monoch romator performance... Single-beam accuracy... ... and easy as
A-B-C!
The world off the infrared is at your fingertips with the new Beckman IR-4 Spectrophotometer!
Here's t h e ultimate in resolution, accuracy, sim plicity, a n d flexibility of operation in a single infrared instrument—the Beckman IR-4. Operate it double-beam, you get unsurpassed resolution and speed ; operate it single-beam, you get accuracy equalling t h e best single-beam in s t r u m e n t s . I t s unique, double-monochromator de sign provides twice t h e dispersion, and twice t h e energy, of comparable single monochromators. This means twice the resolution, or up to four times the scanning speed for the same resolution. And it produces radiation t h a t is truly monochro matic—stray light is negligible with all optics! W h a t ' s more, t h e IR-4 can be operated b y any one. P u s h a button—it r u n s t h e curve automati cally ; stops a t t h e s t a r t i n g point for the next r u n automatically ; even realigns t h e c h a r t paper — automatically! Here's t h e instrument t h a t truly puts t h e world of infrared a t your fingertips ! Write Beckman Instruments, Inc., Scientific In struments, Fullerton, California for additional information. Ask for Data File 2L-4-15.
Beckman®
scientific instruments
For further information, circle number 3 A on Readers' Service Card, page 63 A
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