CENTRAL SCIENTIFIC COMPANY - Analytical Chemistry (ACS


CENTRAL SCIENTIFIC COMPANY - Analytical Chemistry (ACS...

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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