色谱

色谱 ›› 2012, Vol. 30 ›› Issue (09): 931-937.DOI: 10. 3724/ SP. J. 1123. 2012. 03052

• 研究论文 • 上一篇    下一篇

Extraction chromatographic study of aluminium(III) and mutual separation of aluminium(III), gallium(III), indium(III) and thallium(III) with N-n-octylaniline

Sachin R PHULE1, Haribhau R AHER1, Shashikant R KUCHEKAR1 ∗, Sung-H HAN2   

  1. 1. P. G. Department of Analytical Chemistry, P. V. P. College, Pravaranagar, Tal Rahata, Dist Ahmednagar 413713, MS, India; 2. Inorganic Nano-Materials Laboratory, Department of Chemistry, Hanyang University, Seoul 133-791, South Korea
  • 收稿日期:2012-03-26 修回日期:2012-05-31 出版日期:2012-09-28 发布日期:2012-09-20
  • 通讯作者: Shashikant R KUCHEKAR. Tel: +91-241-2425386, E-mail: shashi17@ gmail. com.
  • 基金资助:

    This work was supported by BCUD, Pune University for providing financial assistance in form of a research project.

Extraction chromatography of aluminium(III) and mutual separation of aluminium(III), gallium(III), indium(III) and thallium(III) with N-n-octylaniline

Sachin R PHULE1, Haribhau R AHER1, Shashikant R KUCHEKAR1 ∗, Sung-H HAN2   

  1. 1. P. G. Department of Analytical Chemistry, P. V. P. College, Pravaranagar, Tal Rahata, Dist Ahmednagar 413713, MS, India; 2. Inorganic Nano-Materials Laboratory, Department of Chemistry, Hanyang University, Seoul 133-791, South Korea
  • Received:2012-03-26 Revised:2012-05-31 Online:2012-09-28 Published:2012-09-20
  • Contact: Shashikant Kuchekar
  • Supported by:

    This work was supported by BCUD, Pune University for providing financial assistance in form of a research project.

PDF

397

摘要： A selective method has been developed for extraction chromatographic studies of aluminium(III) and its separation from several metal ions with a chromatographic column containing N-n-octylaniline (liquid anion exchanger) coated on silanized silica gel as a stationary phase. The aluminium(III) was quantitatively extracted with the 0.065 mol/L N-n-octylaninine from 0.013 to 0.05 mol/L sodium succinate at a flow rate of 1.0 mL/min. The extracted metal ion has been recovered by eluting with 25.0 mL of 0.05 mol/L hydrochloric acid and estimated spectrophotometrically with aurintricarboxylic acid. The effects of the acid concentration, the reagent concentration, the flow rate and the eluting agents have been investigated. The log-log plots of distribution coefficient (KdAl(III)) versus N-n-octylaniline concentration in 0.005 and 0.007 mol/L sodium succinate gave the slopes 0.5 and 0.7 respectively and showed the probable composition of the extracted species was 1:1 (metal to amine ratio) and the nature of extracted species is [RR'NH2+ Al succinate2-] org. .The extraction of aluminium(III) was carried out in the presence of various ions to ascertain the tolerance limit of individual ions. Aluminium(III) has been separated from multicomponent mixtures, pharmaceutical samples and synthetic mixtures corresponding to alloys. A scheme for mutual separation of aluminium(III), indium(III), gallium(III) and thallium(III) has been developed by using suitable masking agents. The method is fast, accurate and precise.

关键词: aluminium(III), extraction chromatography, gallium(III), indium(III), multicomponent mixtures, mutual separations, thallium( III)

Abstract: A selective method has been developed for extraction chromatographic studies of aluminium(III) and its separation from several metal ions with a chromatographic column containing N-n-octylaniline (liquid anion exchanger) coated on silanized silica gel as a stationary phase. The aluminium(III) was quantitatively extracted with the 0.065 mol/L N-n-octylaninine from 0.013 to 0.05 mol/L sodium succinate at a flow rate of 1.0 mL/min. The extracted metal ion has been recovered by eluting with 25.0 mL of 0.05 mol/L hydrochloric acid and estimated spectrophotometrically with aurintricarboxylic acid. The effects of the acid concentration, the reagent concentration, the flow rate and the eluting agents have been investigated. The log-log plots of distribution coefficient (KdAl(III)) versus N-n-octylaniline concentration in 0.005 and 0.007 mol/L sodium succinate gave the slopes 0.5 and 0.7 respectively and showed the probable composition of the extracted species was 1:1 (metal to amine ratio) and the nature of extracted species is [RR'NH2+ Al succinate2-] org. .The extraction of aluminium(III) was carried out in the presence of various ions to ascertain the tolerance limit of individual ions. Aluminium(III) has been separated from multicomponent mixtures, pharmaceutical samples and synthetic mixtures corresponding to alloys. A scheme for mutual separation of aluminium(III), indium(III), gallium(III) and thallium(III) has been developed by using suitable masking agents. The method is fast, accurate and precise.

Key words: aluminium(III), extraction chromatography, gallium(III), indium(III), multicomponent mixtures, mutual separations, thallium( III)

中图分类号: