Solid-liquid extraction spectrophotometric determination of copper with 2,9-dimethyl-1,10-phenanthroline

Bo Peng; Jinzhang Gao; Guanglin Hu; Haiyan Fan; Jingwan Kang; Hualing Deng

Solid-liquid extraction spectrophotometric determination of copper with 2,9-dimethyl-1,10-phenanthroline

Bo Peng, Jinzhang Gao, Guanglin Hu, Haiyan Fan, Jingwan Kang, Hualing Deng

Department of Chemistry

Research output: Contribution to journal › Article › peer-review

3 Citations (Scopus)

Abstract

Solid liquid extraction of copper ion (I) with 2,9-dimethyl-1,10-phenanthroline (neo-cuproine, DMP) into molten naphthalene followed by chloroform spectrophotometric determination was studied experimentally. The ternary complex Cu(I)-DMP-ClO₄ was extracted quantitatively into molten naphthalene in the range of pH 5-6 at 85°C. Absorbance was spectrophotometrically determined at 459 nm against the reagent blank after the solid naphthalene layer was anhydrously dissolved in chloroform. Beer's law is obeyed over a concentration range of 0.5-70 μg/mL. The molar absorptivity and Sandell's sensitivity are 1.0 ×10⁴ L/(mol·cm) and 0.0099 μm·cm² respectively. In addition, the various conditions on determination and the interference of coexisted ions were discussed, and the method was applied to the determination of copper ion both in tea samples and cadmium sulfate reagents. The results are in good agreement with those obtained by ICP AES method.

Original language	English
Pages (from-to)	213-216
Number of pages	4
Journal	Rare Metals
Volume	20
Issue number	4
Publication status	Published - Dec 1 2001

Keywords

Copper
DMP
Molten naphthalene
Solid-liquid extraction
Spectrophotometric determination

ASJC Scopus subject areas

Condensed Matter Physics
Physical and Theoretical Chemistry
Metals and Alloys
Materials Chemistry

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title = "Solid-liquid extraction spectrophotometric determination of copper with 2,9-dimethyl-1,10-phenanthroline",

abstract = "Solid liquid extraction of copper ion (I) with 2,9-dimethyl-1,10-phenanthroline (neo-cuproine, DMP) into molten naphthalene followed by chloroform spectrophotometric determination was studied experimentally. The ternary complex Cu(I)-DMP-ClO4 was extracted quantitatively into molten naphthalene in the range of pH 5-6 at 85°C. Absorbance was spectrophotometrically determined at 459 nm against the reagent blank after the solid naphthalene layer was anhydrously dissolved in chloroform. Beer's law is obeyed over a concentration range of 0.5-70 μg/mL. The molar absorptivity and Sandell's sensitivity are 1.0 ×104 L/(mol·cm) and 0.0099 μm·cm2 respectively. In addition, the various conditions on determination and the interference of coexisted ions were discussed, and the method was applied to the determination of copper ion both in tea samples and cadmium sulfate reagents. The results are in good agreement with those obtained by ICP AES method.",

keywords = "Copper, DMP, Molten naphthalene, Solid-liquid extraction, Spectrophotometric determination",

author = "Bo Peng and Jinzhang Gao and Guanglin Hu and Haiyan Fan and Jingwan Kang and Hualing Deng",

year = "2001",

month = dec,

day = "1",

language = "English",

volume = "20",

pages = "213--216",

journal = "Rare Metals",

issn = "1001-0521",

publisher = "University of Science and Technology Beijing",

number = "4",

}

TY - JOUR

T1 - Solid-liquid extraction spectrophotometric determination of copper with 2,9-dimethyl-1,10-phenanthroline

AU - Peng, Bo

AU - Gao, Jinzhang

AU - Hu, Guanglin

AU - Fan, Haiyan

AU - Kang, Jingwan

AU - Deng, Hualing

PY - 2001/12/1

Y1 - 2001/12/1

N2 - Solid liquid extraction of copper ion (I) with 2,9-dimethyl-1,10-phenanthroline (neo-cuproine, DMP) into molten naphthalene followed by chloroform spectrophotometric determination was studied experimentally. The ternary complex Cu(I)-DMP-ClO4 was extracted quantitatively into molten naphthalene in the range of pH 5-6 at 85°C. Absorbance was spectrophotometrically determined at 459 nm against the reagent blank after the solid naphthalene layer was anhydrously dissolved in chloroform. Beer's law is obeyed over a concentration range of 0.5-70 μg/mL. The molar absorptivity and Sandell's sensitivity are 1.0 ×104 L/(mol·cm) and 0.0099 μm·cm2 respectively. In addition, the various conditions on determination and the interference of coexisted ions were discussed, and the method was applied to the determination of copper ion both in tea samples and cadmium sulfate reagents. The results are in good agreement with those obtained by ICP AES method.

AB - Solid liquid extraction of copper ion (I) with 2,9-dimethyl-1,10-phenanthroline (neo-cuproine, DMP) into molten naphthalene followed by chloroform spectrophotometric determination was studied experimentally. The ternary complex Cu(I)-DMP-ClO4 was extracted quantitatively into molten naphthalene in the range of pH 5-6 at 85°C. Absorbance was spectrophotometrically determined at 459 nm against the reagent blank after the solid naphthalene layer was anhydrously dissolved in chloroform. Beer's law is obeyed over a concentration range of 0.5-70 μg/mL. The molar absorptivity and Sandell's sensitivity are 1.0 ×104 L/(mol·cm) and 0.0099 μm·cm2 respectively. In addition, the various conditions on determination and the interference of coexisted ions were discussed, and the method was applied to the determination of copper ion both in tea samples and cadmium sulfate reagents. The results are in good agreement with those obtained by ICP AES method.

KW - Copper

KW - DMP

KW - Molten naphthalene

KW - Solid-liquid extraction

KW - Spectrophotometric determination

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M3 - Article

AN - SCOPUS:0035552092

VL - 20

SP - 213

EP - 216

JO - Rare Metals

JF - Rare Metals

SN - 1001-0521

IS - 4

ER -