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RECORD NUMBER: 50 OF 142

Main Title Development of an Instrumental Combustion Method for the Rapid Determination of Total Phosphorus in Aqueous Solutions.
Author D'Itr, Frank M. ;
CORP Author Michigan State Univ., East Lansing. Inst. of Water Research.
Year Published 1973
Report Number DI-14-31-0001-3022; OWRR-A-033-MICH; 06020,; A-033-MICH(1)
Stock Number PB-216 803
Additional Subjects ( Water analysis ; Phosphorus) ; ( Gas chromatography ; Phosphines) ; Reduction(Chemistry) ; Gas chromatography ; Combustion ; Laboratory equipment ; Water pollution detection
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NTIS  PB-216 803 Some EPA libraries have a fiche copy filed under the call number shown. 07/26/2022
Collation 74p
Abstract
An instrumental combustion method was designed for the rapid determination of milligram quantities of phosphorus in aqueous solutions. With this technique both inorganic and organic phosphorus compounds are reduced to phosphine in an hydrogen atmosphere at 920 C. The phosphine is separated from other combustion products on a chromatographic column and measured by a cesium thermionic detector with the signal transmitted to a potentiometric recorder. The method requires microliter samples and the minimum detectability of the system is in the range of 0.1 to 0.2 micrograms (approximately equivalent to 100 to 200 milligrams per liter) as phosphorus. The analysis time per sample is less than 10 minutes. (Author)