Photometric determination of rhenium in mixed hydrochloric-nitric acidic solutions formed upon processing of molibdenite concentrate

Reactions of gallocyanine methyl ester with vanadates and molybdates were examined spectrophotometrically in weakly acidic solutions in 10% (m/m) ethanol. Vanadates form the VO2L2, VO2(OH)L, and VO3L complexes at pH 3-6.5, molybdates form the MoO2L2 and MoO3L complexes at pH 1.5-4.4 and pH 3-5.3, respectively. The equilibrium constants of the systems concerned were calculated from the data of the concentration curves. Use has been made of the formation of the MoO2L2 complex for photometric determination of molybdenum.

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Photometric determination of copper (II) microquantities in pyrite

Industrial laboratory Diagnostics of materials ◽

10.26896/1028-6861-2019-85-10-23-28 ◽

2019 ◽

Vol 85 (10) ◽

pp. 23-28

Author(s):

F. S. Aliyeva ◽

F. O. Mamedova ◽

F. N. Bahmanova ◽

Yu. A. Yusibov ◽

F. M. Chyragov

Keyword(s):

Photometric Determination ◽

Determination Of Copper

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Elimination of Interference by Phosphorus and Other Elements in the Flame Photometric Determination of Calcium and Magnesium in Plant Tissue1

Soil Science Society of America Journal ◽

10.2136/sssaj1960.03615995002400030019x ◽

1960 ◽

Vol 24 (3) ◽

pp. 189 ◽

Cited By ~ 3

Author(s):

C. G. Wells ◽

R. B. Corey

Keyword(s):

Photometric Determination ◽

Calcium And Magnesium

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Equilibria in micellar systems. Photometric determination of vanadium with 6-hydroxy-5-dibenzo(a,j)phenoxazone-8,11-disulphonic acid activated by cetyltrimethylammonium bromide

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19771941 ◽

1977 ◽

Vol 42 (6) ◽

pp. 1941-1948 ◽

Cited By ~ 2

Author(s):

J. Lasovský ◽

E. Ružička

Keyword(s):

Cetyltrimethylammonium Bromide ◽

Photometric Determination ◽

Micellar Systems ◽

Disulphonic Acid

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Spectrophotometric study of the reactions of lanthanoids with bromopyrogallol red in the presence of cation active tensides

Collection of Czechoslovak Chemical Communications ◽

10.1135/cccc19820503 ◽

1982 ◽

Vol 47 (2) ◽

pp. 503-508 ◽

Cited By ~ 2

Author(s):

Irena Němcová ◽

Pavla Plocková ◽

Tran Hong Con

Keyword(s):

Absorption Spectra ◽

Photometric Determination ◽

Spectrophotometric Study ◽

Ternary Complexes ◽

Optimal Conditions ◽

Bromopyrogallol Red ◽

Binary Complexes

The absorption spectra of the binary complexes of lanthanoids with bromopyrogallol red were measured and the formation of ternary complexes with cation active tenside, Septonex, was studied. Optimal conditions were found for the formation of these complexes and the possibility of their use in the photometric determination of lanthanoids was demonstrated on several examples.

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