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 2001 |
| Externally published | Yes |
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Keywords
- Copper
- DMP
- Molten naphthalene
- Solid-liquid extraction
- Spectrophotometric determination
ASJC Scopus subject areas
- Materials Science(all)
- Metals and Alloys
Cite this
Solid-liquid extraction spectrophotometric determination of copper with 2,9-dimethyl-1,10-phenanthroline. / Peng, Bo; Gao, Jinzhang; Hu, Guanglin; Fan, Haiyan; Kang, Jingwan; Deng, Hualing.
In: Rare Metals, Vol. 20, No. 4, 12.2001, p. 213-216.Research output: Contribution to journal › Article
}
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
Y1 - 2001/12
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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UR - http://www.scopus.com/inward/citedby.url?scp=0035552092&partnerID=8YFLogxK
M3 - Article
AN - SCOPUS:0035552092
VL - 20
SP - 213
EP - 216
JO - Rare Metals
JF - Rare Metals
SN - 1001-0521
IS - 4
ER -