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author:

Xie, ZH (Xie, ZH.) [1] (Scholars:谢增鸿) | Xie, FZ (Xie, FZ.) [2] | Guo, LQ (Guo, LQ.) [3] (Scholars:郭良洽) | Lin, XC (Lin, XC.) [4] (Scholars:林旭聪) | Chen, GN (Chen, GN.) [5] (Scholars:陈国南)

Indexed by:

EI Scopus SCIE

Abstract:

Thioacetamide immobilized on silica gel was prepared via the Mannich reaction. The extraction and enrichment of copper(II), lead(II), and cadmium(II) ions from aqueous solutions has been investigated. Conditions for effective extraction are optimized with respect to different experimental parameters in both batch and column processes prior to their determination by flame atomic absorption spectrometry (FAAS). The optimum pH ranges for quantitative adsorption are 4.0-8.0, 2.0-7.0, and 5.0-10.0 for Pb(II), Cu(II), and Cd(II), respectively. Pb(II) and Cd(II) can be desorbed with 3 mol/L and 0.1 mol/L HCl/HNO3, and Cu(II) can be desorbed with 2.5% thiourea. The adsorption capacity of the matrix has been found to be 19.76, 16.35, and 12.50 mg/g for Pb(II), Cu(II), and Cd(II), respectively, with the preconcentration factor of approximate to 300 for Pb(II) and approximate to 200 for Cu(II) and Cd(II). Analytical utility is illustrated in real aqueous samples generated from distilled water, tap water, and river water samples.

Keyword:

silica gel solid phase extraction thioacetamide

Community:

  • [ 1 ] Fuzhou Univ, Dept Chem, Fujian 350002, Peoples R China

Reprint 's Address:

  • 陈国南

    [Chen, GN]Fuzhou Univ, Dept Chem, Fujian 350002, Peoples R China

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Source :

JOURNAL OF SEPARATION SCIENCE

ISSN: 1615-9306

Year: 2005

Issue: 5

Volume: 28

Page: 462-470

1 . 8 2 9

JCR@2005

2 . 8 0 0

JCR@2023

ESI Discipline: CHEMISTRY;

JCR Journal Grade:2

Cited Count:

WoS CC Cited Count: 47

SCOPUS Cited Count: 49

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 4

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