Announcing THE BECKMAN MODEL "B" SPECTROPHOTOMETER
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Transcript of Announcing THE BECKMAN MODEL "B" SPECTROPHOTOMETER
i k î i r ^ . ^ . ^ ^ ^ ' T , - : ^
ADVANCED FEATURES INTO THE MODEL "Β"
INCLUDE . . .
CONVENIENCE: Direct reading wavelength scale 320 4o 10O0 millimicrons . . . readings reproducible 4o great accuracy. Direct reading transmission and «absorbante (optical density) scales on large easily-read meter. 4 Continuously variable slits for smooth, precise settings. 4-Position sensitivity multiplier permits reod-ings to be made on most advantageous portion of scale. Four position cell carriage permits ajwjdc positioning of any of 4 cells by €m external contro l
A C C U R A C Y : Photometric accuracy to 0 . 5 % transmission or 1 % absorbance. Negligible stray light-less than 1 1 6 % of 3 2 0 millimicrons. Resolution—permits less than 5 enîJlimloron spectral band width over most o f spectrcd
nples may be VERSATIIITY:
Liquid, solid) and gaseous analyzed. Monochromatic l ight beam is easily brougjhi outside the instrument for long path measurements and special uses. Accommodates large cells up to 50 m. en. pa th length in standard cell carrier. Interchangeable photocells—red or blue-sensitive to utilize the high resolving power of she Model "B" . Easily-attached Model " B " accessories <ne available for special types of measurements and for added convenience and accuracy. Wr i te for details.
Note cnxdroff. A b o jpoœ» Jhaf p e n n e s
The new Model "B" Spectrophotometer is by far the outstanding routine instrument available. It provides advancements pioneeied in the Beckman Quartz and Infrared Spectrophotometers but never before offered in a low priced instrument. These advantages are important because they combine simplicity9 convenience and versatility without sacrificing accuracy and reliability.
The Model "B" has better ultraviolet performance . . . better resolution . . . better wavelength and photometric accuracy and more freedom from stray light than any other instrument in its field.
A descriptive bulletin on the Beckman Model "B" Spectrophotometer will gladly be sent on request Write today. Beckman Instruments, National Technical Laboratories, South Pasadena 13, California.
BECKMAN INSTRUMENTS C O N T R O L M O D E R N I N D U S T R I E S
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THE BECKMAN MODEL "B" SPECTROPHOTOMETER
