Spectrophotometric study of the complexation and extraction of chromium(VI) with cyanine dyes

I. Balogh, Ivan M. Maga, Ágnes Hargitai-Tóth, Vasil Andruch

Research output: Contribution to journalArticle

25 Citations (Scopus)

Abstract

Solvent extraction of chromium(VI) ion associates with symmetric cyanine dyes including the heterocyclic radicals of 1,3,3-trimethyl-3N-indoline, benzooxazol, benzothiazol and quinoline has been studied by means of spectrophotometric method. In the acidic medium in the presence of chloride ions, extractable by aromatic hydrocarbons and esters of acetic acids, chromium(VI) ion associates are formed. The molar absorptivities of ion associates are 2.5-3.6 x 105 1 mol-1 cm-1 in dependence on extractant and dye. The absorbance of the coloured extracts obeys the Beer's law in the range 0.01-2.1 mg 1-1. The extraction of chromium is the highest during extraction from the sulphuric acid medium in the range 0.05-03 M H2SO4. It was found that the Cr(VI):Cl:R molar ratio is 1:1:1. A novel procedure of chromium(VI) extraction and spectrophotometric determination in various types of soils and sewage doped with chromium(VI) was examined. (C) 2000 Elsevier Science B.V.

Original languageEnglish
Pages (from-to)543-549
Number of pages7
JournalTalanta
Volume53
Issue number3
DOIs
Publication statusPublished - Dec 4 2000

Fingerprint

Complexation
Coloring Agents
Ions
Aromatic Hydrocarbons
Solvent extraction
Chromium
Sewage
Chlorides
Acetates
Soil
chromium hexavalent ion
Soils
Acids

Keywords

  • Chromium(VI)
  • Cyanine dye
  • Extraction
  • Spectrophotometry

ASJC Scopus subject areas

  • Analytical Chemistry
  • Spectroscopy

Cite this

Spectrophotometric study of the complexation and extraction of chromium(VI) with cyanine dyes. / Balogh, I.; Maga, Ivan M.; Hargitai-Tóth, Ágnes; Andruch, Vasil.

In: Talanta, Vol. 53, No. 3, 04.12.2000, p. 543-549.

Research output: Contribution to journalArticle

Balogh, I. ; Maga, Ivan M. ; Hargitai-Tóth, Ágnes ; Andruch, Vasil. / Spectrophotometric study of the complexation and extraction of chromium(VI) with cyanine dyes. In: Talanta. 2000 ; Vol. 53, No. 3. pp. 543-549.
@article{daa715b1d8af4049be679824f6255a08,
title = "Spectrophotometric study of the complexation and extraction of chromium(VI) with cyanine dyes",
abstract = "Solvent extraction of chromium(VI) ion associates with symmetric cyanine dyes including the heterocyclic radicals of 1,3,3-trimethyl-3N-indoline, benzooxazol, benzothiazol and quinoline has been studied by means of spectrophotometric method. In the acidic medium in the presence of chloride ions, extractable by aromatic hydrocarbons and esters of acetic acids, chromium(VI) ion associates are formed. The molar absorptivities of ion associates are 2.5-3.6 x 105 1 mol-1 cm-1 in dependence on extractant and dye. The absorbance of the coloured extracts obeys the Beer's law in the range 0.01-2.1 mg 1-1. The extraction of chromium is the highest during extraction from the sulphuric acid medium in the range 0.05-03 M H2SO4. It was found that the Cr(VI):Cl:R molar ratio is 1:1:1. A novel procedure of chromium(VI) extraction and spectrophotometric determination in various types of soils and sewage doped with chromium(VI) was examined. (C) 2000 Elsevier Science B.V.",
keywords = "Chromium(VI), Cyanine dye, Extraction, Spectrophotometry",
author = "I. Balogh and Maga, {Ivan M.} and {\'A}gnes Hargitai-T{\'o}th and Vasil Andruch",
year = "2000",
month = "12",
day = "4",
doi = "10.1016/S0039-9140(00)00525-7",
language = "English",
volume = "53",
pages = "543--549",
journal = "Talanta",
issn = "0039-9140",
publisher = "Elsevier",
number = "3",

}

TY - JOUR

T1 - Spectrophotometric study of the complexation and extraction of chromium(VI) with cyanine dyes

AU - Balogh, I.

AU - Maga, Ivan M.

AU - Hargitai-Tóth, Ágnes

AU - Andruch, Vasil

PY - 2000/12/4

Y1 - 2000/12/4

N2 - Solvent extraction of chromium(VI) ion associates with symmetric cyanine dyes including the heterocyclic radicals of 1,3,3-trimethyl-3N-indoline, benzooxazol, benzothiazol and quinoline has been studied by means of spectrophotometric method. In the acidic medium in the presence of chloride ions, extractable by aromatic hydrocarbons and esters of acetic acids, chromium(VI) ion associates are formed. The molar absorptivities of ion associates are 2.5-3.6 x 105 1 mol-1 cm-1 in dependence on extractant and dye. The absorbance of the coloured extracts obeys the Beer's law in the range 0.01-2.1 mg 1-1. The extraction of chromium is the highest during extraction from the sulphuric acid medium in the range 0.05-03 M H2SO4. It was found that the Cr(VI):Cl:R molar ratio is 1:1:1. A novel procedure of chromium(VI) extraction and spectrophotometric determination in various types of soils and sewage doped with chromium(VI) was examined. (C) 2000 Elsevier Science B.V.

AB - Solvent extraction of chromium(VI) ion associates with symmetric cyanine dyes including the heterocyclic radicals of 1,3,3-trimethyl-3N-indoline, benzooxazol, benzothiazol and quinoline has been studied by means of spectrophotometric method. In the acidic medium in the presence of chloride ions, extractable by aromatic hydrocarbons and esters of acetic acids, chromium(VI) ion associates are formed. The molar absorptivities of ion associates are 2.5-3.6 x 105 1 mol-1 cm-1 in dependence on extractant and dye. The absorbance of the coloured extracts obeys the Beer's law in the range 0.01-2.1 mg 1-1. The extraction of chromium is the highest during extraction from the sulphuric acid medium in the range 0.05-03 M H2SO4. It was found that the Cr(VI):Cl:R molar ratio is 1:1:1. A novel procedure of chromium(VI) extraction and spectrophotometric determination in various types of soils and sewage doped with chromium(VI) was examined. (C) 2000 Elsevier Science B.V.

KW - Chromium(VI)

KW - Cyanine dye

KW - Extraction

KW - Spectrophotometry

UR - http://www.scopus.com/inward/record.url?scp=0034606537&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=0034606537&partnerID=8YFLogxK

U2 - 10.1016/S0039-9140(00)00525-7

DO - 10.1016/S0039-9140(00)00525-7

M3 - Article

VL - 53

SP - 543

EP - 549

JO - Talanta

JF - Talanta

SN - 0039-9140

IS - 3

ER -