Determination of Cadmium by FAAS After Solid-Phase Extraction of its 1-Benzylpiperazinedithiocarbamate Complex on Microcrystalline Naphthalene

Hasan CESUR; Bekir BATI

Article Details

Determination of Cadmium by FAAS After Solid-Phase Extraction of its 1-Benzylpiperazinedithiocarbamate Complex on Microcrystalline Naphthalene

Authors:

Hasan CESUR | Bekir BATI

Publisher:

TUBITAK

Journal:

Turkish Journal of Chemistry 2002 Vol.26 Issue 1, pp.29-36

Document Type:

Article

Publication Date:

12/2001

Document Language:

Turkish

Document ID (Org No.):

2000729994

Frequency:

Bimonthly

eISSN:

1303-6130

pISSN:

1300-0527

Abstract:

 

By using  1-benzylpiperazinedithiocarbamate (1-BPzDC) as a new reagent, a   method of solid-phase extraction is described for the pre-concentration of   cadmium in water samples prior to its determination by flame atomic   absorption spectrometry (FAAS). This method is based on the fact that cadmium forming in   aqueous phase cadmium 1-benzylpiperazinedithiocarbamate complex   (Cd(1-BPzDC)2) can be extracted with microcrystalline naphthalene on   solid phase, then back-extracted with potassium cyanide solution into   aqueous phase and measured by FAAS. The optimum experimental parameters for   the extraction and back-extraction of cadmium were investigated. The   obtained recovery was nearly 97% when the enrichment factor was 500 for   spiked cadmium solutions. The interfering effects of M(II), Fe(III), Cu(II),   Ni(II), Pb(II), Cr(III), Hg(II), Zn(II), Bi(III), Ag(I), acetate, tartarate,   oxalate, citrate, EDTA, cyanide, fluoride, chloride, bromide and iodide were   investigated, and almost were eliminated except for EDTA and cyanide. The   detection limit (0.034 m gmL - 1) and the determination limit of   the proposed method (0.114 m gmL - 1) were evaluated as the   concentration corresponding to three times and ten times the standard   deviation of the blank signal, respectively.

 

By using  1-benzylpiperazinedithiocarbamate (1-BPzDC) as a new reagent, a   method of solid-phase extraction is described for the pre-concentration of   cadmium in water samples prior to its determination by flame atomic   absorption spectrometry (FAAS). This method is based on the fact that cadmium forming in   aqueous phase cadmium 1-benzylpiperazinedithiocarbamate complex   (Cd(1-BPzDC)2) can be extracted with microcrystalline naphthalene on   solid phase, then back-extracted with potassium cyanide solution into   aqueous phase and measured by FAAS. The optimum experimental parameters for   the extraction and back-extraction of cadmium were investigated. The   obtained recovery was nearly 97% when the enrichment factor was 500 for   spiked cadmium solutions. The interfering effects of M(II), Fe(III), Cu(II),   Ni(II), Pb(II), Cr(III), Hg(II), Zn(II), Bi(III), Ag(I), acetate, tartarate,   oxalate, citrate, EDTA, cyanide, fluoride, chloride, bromide and iodide were   investigated, and almost were eliminated except for EDTA and cyanide. The   detection limit (0.034 m gmL - 1) and the determination limit of   the proposed method (0.114 m gmL - 1) were evaluated as the   concentration corresponding to three times and ten times the standard   deviation of the blank signal, respectively.

Article Details

Determination of Cadmium by FAAS After Solid-Phase Extraction of its 1-Benzylpiperazinedithiocarbamate Complex on Microcrystalline Naphthalene

Authors: Hasan CESUR | Bekir BATI

Publisher: TUBITAK

Journal: Turkish Journal of Chemistry 2002 Vol.26 Issue 1, pp.29-36

Document Type: Article

Publication Date: 12/2001

Document Language: Turkish

Document ID (Org No.): 2000729994

Frequency: Bimonthly

eISSN: 1303-6130

pISSN: 1300-0527

Issues

Authors:

Hasan CESUR | Bekir BATI

Publisher:

TUBITAK

Journal:

Turkish Journal of Chemistry 2002 Vol.26 Issue 1, pp.29-36

Document Type:

Article

Publication Date:

12/2001

Document Language:

Turkish

Document ID (Org No.):

2000729994

Frequency:

Bimonthly

eISSN:

1303-6130

pISSN:

1300-0527