A FLAME PHOTOMETER FOR SMALL AMOUNTS OF CESIUM,

reportActive / Technical Report | Accession Number: AD0659210 | Need Help?

Abstract:

A new photometric system is described that allows measurement of very small traces of an element such as cesium to be determined quantitatively with greater precision than previously possible through study of flame emission spectra. For example, with the new system it was found possible to replicate measurements of the cesium in quantities that are normally present in one liter of sea water about 0.3 micrograms with standard error less than 0.5 per cent. Dilute cesium standard solutions can be compared significantly within a few parts per billion. Precise comparison of flame emissions requires precise control of flow of the solution into the flame therefore, routine washing of aspirators must be done. Therefore, a specialized automatic sample-changing system was developed to provide for precise timing of the burning of the sample and the standard solutions and to carry out aspirator washings immediately following the burning of each sample. Author

Author(s):
Folsom, T. R. ; Sreekumaran, C. ; Weitz, W. E., Jr. ; Tennant, D. A.
Author Organization(s):
SCRIPPS INSTITUTION OF OCEANOGRAPHY LA JOLLA CALIF
Pagination:
0036

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Identifying Numbers
Report Number(s):
SIO-Ref-67-20, TR-922-ERG-A-67
Contract/Grant Number(s):
Nonr-2216(22)
 Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
*CESIUM, *MICROANALYSIS, *SEA WATER, *PHOTOMETERS, MICROANALYSIS, MEASUREMENT, PHOTOMULTIPLIER TUBES, SAMPLING, BACKGROUND, SAMPLERS, DETECTION, BRIGHTNESS, SENSITIVITY, INTENSITY, INFRARED SPECTRA, SPECTROMETERS, AUTOMATIC, OCEANOGRAPHY
Field(s)/Group(s):
Physical and Dynamic Oceanography, Test Facilities, Equipment and Methods, Atomic and Molecular Physics and Spectroscopy
Keyword(s):
Most project 2
Report Date:
1967 May 16