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Journal ArticleDOI

The color reactions of sulfonazo-III isomers with lanthanum and alkaline earth metal ions

Michio Zenki
- 01 May 1976 - 
- Vol. 83, pp 267-274
TLDR
In this paper, six sulfonazo-III isomers were synthesized and their color reactions with alkaline earth metals and lanthanum investigated, and the effects of water-miscible solvents were also described.
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This article is published in Analytica Chimica Acta.The article was published on 1976-05-01. It has received 12 citations till now. The article focuses on the topics: Lanthanum & Barium.

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Citations
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Journal ArticleDOI

Determination of sulfate in river water by flow injection analysis

TL;DR: In this article, the sulfate ion in river water is determined by flow injection analysis at a rate of 30 samples per hour; the sulfates contents are typically less than 30 ppm; the calibration graph is linear over the range 0-30 μg ml-1 for sulfate in water.
Journal ArticleDOI

Determination of sulphate in natural water by flow-injection analysis

TL;DR: Sulphate was determined in natural water samples by flow-injection analysis using dimethylsulphonazo-III as reagent as mentioned in this paper, where the interference by Ca was eliminated by a cation-exchanger column inserted directly after the sample injection valve.

Universidade de são paulo centro de energia nuclear na agricultura

TL;DR: The study in the Barra Bonita stream small watershed aimed to characterize its hydrogeochemical parameters by dissolved and particulate material transport models to identify the relations between soil use and water quality and pioneer on the watershed environmental investigation.
References
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Journal ArticleDOI

Analytical use of arsenazo III: Determination of thorium, zirconium, uranium and rare earth elements

TL;DR: The reagent arsenazo III (1,8-dihydroxynaphthalene-3,6-disulphonic acid-2,7-bis[(azo-2)-phenylarsonic acid]) gives marked color reactions with a number of elements.
Journal ArticleDOI

Determination of sulphur and sulphate by titration with barium perchlorate

TL;DR: In this paper, the precipitation titration of sulphate with barium perchlorate solution Dimethylsulphonazo III was found to be best, and was tested further in determinations of inorganic and organic sulphur.
Journal ArticleDOI

Complexes of metallochromic substances. VII: Spectrophotometric determination of barium and sulphates by means of sulphonazo III

TL;DR: In this paper, the dissociation constants of the sulphonazo III-proton complexes, and the composition and global stability constant of the sulfonazo 3-barium(II) complex were determined.
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