VOLUME
2 0, N O .
2, F E B R U A R Y
1948
13 A
Excites the spectral lines of the chemical elements
tt%&** FLAME
The Beckman Flame Photometer extends the application of the Model DU Quartz Spectrophotometer, already widely used in all types of organic analyses, to the qualitative and quantitative determination of chemical elements. It makes possible amplified analytical approach to many problems such as metallurgical analyses, water analyses, biological determinations, soil analyses, etc., which have heretofore required the use of tedious " w e t " methods or of expensive instruments such as the spectrograph.
Samples in solution are atomized in a specially designed sprayer and introduced into hot oxygen-gas fla me, which excites the spectral lines of the chemical elements. These lines are used as the light source for a Model DU Quartz Spectrophotometer, which serves to isolate the lines and measure their intensities. The instrument is useful for a large number of elements, including many heavy metals and alkaline earths.
The high resolving power and high photometric accuracy of the Beckman Spectrophotometer are fully utilized. This permits use o f narrow monochromator slits resulting in minimum interference by background illumination from the flame. Measurements can be made on 5 cc and less than 0.5 per minute consumed. The results are readable directly from the dial.
Write for Technical Bulletin SP52.
CENTRAL
SCIENTIFIC Scientific 1700
NEW YORK
BOSTON
SAN
IRVING
FRANCISCO
CENCO PARK
ROAD,
NEWARK
COMPANY
Apparatus CHICAGO
13
LOS A N G E L E S
TORONTO
MONTREAL
