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2 024 848

(13)

C1

(51)

IPC

(21) (22)

Application

4927309/04, 1991-04-11

(22)

Actual filing date

1991-04-11

(45)

Published

1994-12-15

(72)

Inventor

Shvoeva O.P.Trutneva L.M.Likhonina E.A.Savvin S.B.

(73)

Holder

Institut Geokhimii I Analiticheskoj Khimii Im.V.I.Vernadskogo Ran

METHOD FOR CHROMIUM DETERMINATION Russian patent published in 1994 - IPC

Abstract RU 2024848 C1

FIELD: determination of chromium in natural, potable water and sewage. SUBSTANCE: method consists in passing the analyzed solution through highly basic anionite in form of disk with mass of 20-30 mg made of polyacrylnitrile fiber filled with finely divided anionite. Conversion into complex compound is effected directly on solid phase by treatment of disks with solution of diphenyl carbazide in 0.5-2.0 N sulfuric acid. EFFECT: higher efficiency. 4 tbl

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RU 2 024 848 C1

Authors

Shvoeva O.P.

Trutneva L.M.

Likhonina E.A.

Savvin S.B.

Dates

1994-12-15—Published

1991-04-11—Filed

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