Method and device for determining the phosphorus content of...

Details Method and device for determining the phosphorus content of... Method and device for determining the phosphorus content of...

2011-08-09

2011-08-09

Griffin, Walter D (Department: 1774)

Chemistry: analytical and immunological testing

Phosphorus containing

C422S078000, C422S080000, C422S068100, C422S050000

Reexamination Certificate

active

07993930

ABSTRACT:
Method for determining the phosphorus content of an aqueous sample, in particular drainage-water sample, wherein the sample is subjected to thermal-oxidative decomposition and the orthophosphate content of the decomposed sample is determined photometrically in an aqueous analysis solution, such that the thermal decomposition is carried out in a single step by catalyzer-free burning of the sample as batch-decomposition in a combustion oven, the resulting combustion gas is transferred out of the combustion oven in a carrier-gas stream and the combustion/carrier gas stream is cooled to obtain the aqueous analysis solution as a condensate therefrom.

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