Synergistic solvent extraction of copper, cobalt, rhodium and iridium into 1, 2-dichloroethane at trace level by newly synthesized 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetra-[4-(N-hydroxyl-3-phenylprop-2-enimidamido) phenylazo] calix[4]arene

Ashok Kumar, Pratibha Sharma, Lal Kumar Chandel, Bhagwan Lal Kalal, S. Kunsági-Máté

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Abstract

A spectrophotometric method for determination of copper, cobalt, rhodium and iridium ions from nitric acid media after extraction of these ions by 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetra-[4-(N-hydroxyl-3-phenylprop-2- enimidamido) phenylazo] calix [4] arene (THPAC) has been developed and possible synergistic effect has been investigated. The maximum enhancement was obtained in the presence of 30% 1, 2-dichloroethane in DMF and 3M nitric acid. The trace amounts of the metal were determined spectrophotometrically. Beer's law was obeyed in concentration range 5.0-10.0 μg, 6.0-120.0 μg, 12.0-100.0 μg, and 10.0-130.0 μg/10 mL of the final solution of copper, cobalt, rhodium and iridium, respectively. The molar absorptivities (l mol-1 cm -1) and Sandell's sensitivities (μg cm-1) were calculated: Cu (II) = 0.96 × 104, 0.0066; Co (II) = 1.13 × 104, 0.0052; Rh (III) = 0.98 × 104, 0.012; and Ir (III) = 2.03 × 104, 0.0095, respectively. Seven replicate analyses containing of 20.0 μg of Cu (II), 24.0 μg of Co (II), 36.0 μg of Rh (III) and 25.0 μg of Ir (III) gave mean absorbance 0.302, 0.462, 0.344, 0.264; and relative standard deviation 0.65, 0.85, 1.10, 1.08%, respectively. The interference of various ions was studied and optimum conditions were developed for determination of metals in certain alloys, environmental, pharmaceutical and synthetic samples.

Original languageEnglish
Pages (from-to)285-292
Number of pages8
JournalJournal of Inclusion Phenomena
Volume62
Issue number3-4
DOIs
Publication statusPublished - Dec 2008

Fingerprint

iridium
rhodium
ethylene dichloride
Iridium
Rhodium
solvent extraction
Solvent extraction
cobalt
Cobalt
Hydroxyl Radical
Nitric Acid
Copper
nitric acid
copper
Ions
ions
Metals
metals
Beer law
beers

Keywords

  • Calixarene
  • Cobalt
  • Copper
  • Diluents
  • Iridium
  • Rhodium
  • Spectrophotometric determination
  • Synergistic extraction

ASJC Scopus subject areas

  • Condensed Matter Physics
  • Food Science
  • Chemistry(all)

Cite this

@article{4129e303208d437ca757db99ebef0c2b,
title = "Synergistic solvent extraction of copper, cobalt, rhodium and iridium into 1, 2-dichloroethane at trace level by newly synthesized 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetra-[4-(N-hydroxyl-3-phenylprop-2-enimidamido) phenylazo] calix[4]arene",
abstract = "A spectrophotometric method for determination of copper, cobalt, rhodium and iridium ions from nitric acid media after extraction of these ions by 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetra-[4-(N-hydroxyl-3-phenylprop-2- enimidamido) phenylazo] calix [4] arene (THPAC) has been developed and possible synergistic effect has been investigated. The maximum enhancement was obtained in the presence of 30{\%} 1, 2-dichloroethane in DMF and 3M nitric acid. The trace amounts of the metal were determined spectrophotometrically. Beer's law was obeyed in concentration range 5.0-10.0 μg, 6.0-120.0 μg, 12.0-100.0 μg, and 10.0-130.0 μg/10 mL of the final solution of copper, cobalt, rhodium and iridium, respectively. The molar absorptivities (l mol-1 cm -1) and Sandell's sensitivities (μg cm-1) were calculated: Cu (II) = 0.96 × 104, 0.0066; Co (II) = 1.13 × 104, 0.0052; Rh (III) = 0.98 × 104, 0.012; and Ir (III) = 2.03 × 104, 0.0095, respectively. Seven replicate analyses containing of 20.0 μg of Cu (II), 24.0 μg of Co (II), 36.0 μg of Rh (III) and 25.0 μg of Ir (III) gave mean absorbance 0.302, 0.462, 0.344, 0.264; and relative standard deviation 0.65, 0.85, 1.10, 1.08{\%}, respectively. The interference of various ions was studied and optimum conditions were developed for determination of metals in certain alloys, environmental, pharmaceutical and synthetic samples.",
keywords = "Calixarene, Cobalt, Copper, Diluents, Iridium, Rhodium, Spectrophotometric determination, Synergistic extraction",
author = "Ashok Kumar and Pratibha Sharma and Chandel, {Lal Kumar} and Kalal, {Bhagwan Lal} and S. Kuns{\'a}gi-M{\'a}t{\'e}",
year = "2008",
month = "12",
doi = "10.1007/s10847-008-9469-6",
language = "English",
volume = "62",
pages = "285--292",
journal = "Journal of Inclusion Phenomena and Macrocyclic Chemistry",
issn = "0923-0750",
publisher = "Kluwer Academic Publishers",
number = "3-4",

}

TY - JOUR

T1 - Synergistic solvent extraction of copper, cobalt, rhodium and iridium into 1, 2-dichloroethane at trace level by newly synthesized 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetra-[4-(N-hydroxyl-3-phenylprop-2-enimidamido) phenylazo] calix[4]arene

AU - Kumar, Ashok

AU - Sharma, Pratibha

AU - Chandel, Lal Kumar

AU - Kalal, Bhagwan Lal

AU - Kunsági-Máté, S.

PY - 2008/12

Y1 - 2008/12

N2 - A spectrophotometric method for determination of copper, cobalt, rhodium and iridium ions from nitric acid media after extraction of these ions by 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetra-[4-(N-hydroxyl-3-phenylprop-2- enimidamido) phenylazo] calix [4] arene (THPAC) has been developed and possible synergistic effect has been investigated. The maximum enhancement was obtained in the presence of 30% 1, 2-dichloroethane in DMF and 3M nitric acid. The trace amounts of the metal were determined spectrophotometrically. Beer's law was obeyed in concentration range 5.0-10.0 μg, 6.0-120.0 μg, 12.0-100.0 μg, and 10.0-130.0 μg/10 mL of the final solution of copper, cobalt, rhodium and iridium, respectively. The molar absorptivities (l mol-1 cm -1) and Sandell's sensitivities (μg cm-1) were calculated: Cu (II) = 0.96 × 104, 0.0066; Co (II) = 1.13 × 104, 0.0052; Rh (III) = 0.98 × 104, 0.012; and Ir (III) = 2.03 × 104, 0.0095, respectively. Seven replicate analyses containing of 20.0 μg of Cu (II), 24.0 μg of Co (II), 36.0 μg of Rh (III) and 25.0 μg of Ir (III) gave mean absorbance 0.302, 0.462, 0.344, 0.264; and relative standard deviation 0.65, 0.85, 1.10, 1.08%, respectively. The interference of various ions was studied and optimum conditions were developed for determination of metals in certain alloys, environmental, pharmaceutical and synthetic samples.

AB - A spectrophotometric method for determination of copper, cobalt, rhodium and iridium ions from nitric acid media after extraction of these ions by 25, 26, 27, 28-tetrahydroxy-5, 11, 17, 23-tetra-[4-(N-hydroxyl-3-phenylprop-2- enimidamido) phenylazo] calix [4] arene (THPAC) has been developed and possible synergistic effect has been investigated. The maximum enhancement was obtained in the presence of 30% 1, 2-dichloroethane in DMF and 3M nitric acid. The trace amounts of the metal were determined spectrophotometrically. Beer's law was obeyed in concentration range 5.0-10.0 μg, 6.0-120.0 μg, 12.0-100.0 μg, and 10.0-130.0 μg/10 mL of the final solution of copper, cobalt, rhodium and iridium, respectively. The molar absorptivities (l mol-1 cm -1) and Sandell's sensitivities (μg cm-1) were calculated: Cu (II) = 0.96 × 104, 0.0066; Co (II) = 1.13 × 104, 0.0052; Rh (III) = 0.98 × 104, 0.012; and Ir (III) = 2.03 × 104, 0.0095, respectively. Seven replicate analyses containing of 20.0 μg of Cu (II), 24.0 μg of Co (II), 36.0 μg of Rh (III) and 25.0 μg of Ir (III) gave mean absorbance 0.302, 0.462, 0.344, 0.264; and relative standard deviation 0.65, 0.85, 1.10, 1.08%, respectively. The interference of various ions was studied and optimum conditions were developed for determination of metals in certain alloys, environmental, pharmaceutical and synthetic samples.

KW - Calixarene

KW - Cobalt

KW - Copper

KW - Diluents

KW - Iridium

KW - Rhodium

KW - Spectrophotometric determination

KW - Synergistic extraction

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U2 - 10.1007/s10847-008-9469-6

DO - 10.1007/s10847-008-9469-6

M3 - Article

AN - SCOPUS:55949086006

VL - 62

SP - 285

EP - 292

JO - Journal of Inclusion Phenomena and Macrocyclic Chemistry

JF - Journal of Inclusion Phenomena and Macrocyclic Chemistry

SN - 0923-0750

IS - 3-4

ER -