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2 361 201

(13)

(51)

IPC

G01N31/02(2006-01-01)

(21) (22)

Application

2008108349/04, 2008-03-03

(24)

Start date

2008-03-03

(22)

Actual filing date

2008-03-03

(45)

Published

2009-07-10

(72)

Inventor

Repina Elena Jur'EvnaUsolkin Anatolij NikolaevichChukhlantseva Ekaterina Vladimirovna

(73)

Holder

Federal'Noe Gosudarstvennoe Unitarnoe Predprijatie Ob"Edinenie

METHOD OF DETECTING PHOSPHORUS IN PREPARATIONS OF ELEMENTS EXTRACTED WITH NEUTRAL ORGANIC COMPOUNDS Russian patent published in 2009 - IPC G01N31/02

Abstract RU 2361201 C1

FIELD: chemistry.

SUBSTANCE: invention relates to analytic chemistry concerning detecting of phosphorus content in compounds of actinide, rare and dispersed elements. Method includes transforming sample into solution, separation of phosphorus by extraction of said elements with neutral organic compound - tributylphosphate (TBP), applied on inert sorbate, obtaining raffinate, addition of mixture which contains ammonium heptamolybdate into sample raffinate and into graduating mixtures of solutions with additions of phosphorus, evaluation of intensity of light dispersion in each of them basing on measurements of optic density by particles formed in acid solution as a result of interaction of neutral organic compound and molybdophosphoric acid, formed from ammonium heptamolybdate, and calculation of weight fraction of phosphorus in sample by graduated dependence.

EFFECT: increase of analysis sensitivity.

2 cl, 2 ex

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RU 2 361 201 C1

Authors

Repina Elena Jur'Evna

Usolkin Anatolij Nikolaevich

Chukhlantseva Ekaterina Vladimirovna

Dates

2009-07-10—Published

2008-03-03—Filed