Solid phase extraction of Cd(ii) and pb(ii) ions by a new carbothioamide derivative

Küçük Resim Yok

Tarih

2013

Dergi Başlığı

Dergi ISSN

Cilt Başlığı

Yayıncı

Sociedad Chilena de Quimica

Erişim Hakkı

info:eu-repo/semantics/openAccess

Özet

An effective, simple, low cost and accurate sorption-spectrophotometric platform for the extractions and subsequent quantifications of Cd(II) and Pb(II) ions in food and environmental samples has been described in this dissertation. The separation and preconcentration of the analyte ions were accomplished by solid phase extraction method based on the adsorption of their N-(4-methylphenyl)-2-{[(4-phenyl-5-pyridin-4-yl-4H-1,2,4-triazol-3-yl)thio] acetyl} hydrazinecarbothioamide (MFPTAHK) complex on Amberlite XAD-8 resin in a mini column. The developed method was systematically investigated in different set of experimental parameters that influence the separation and preconcentration of Cd(II) and Pb(II) ions. The precision of the method was determined by reproducibility studies and expressed as relative standard deviations (RSD %) which were less than 4% for both analyte ions. The limits of detections (LODs) for Cd(II) and Pb(II) ions based on the three times the standard deviation of the blanks (N:10) were found to be 0. 31 ?g L-1 and 0. 86 ?g L-1, respectively. The developed SPE procedure was utilized for the simultaneous extraction and determinations of Cd(II) and Pb(II) ions levels in rice, cracked wheat and red lentil as food samples and various water samples.

Açıklama

Anahtar Kelimeler

2,4-triazol-3-yl)thio]acetyl}hydrazinecarbothioamide, Cadmium(II), Flame atomic absorption spectrometry, Lead(II), N-(4-methylphenyl)-2-{[(4-phenyl-5-pyridin-4-yl-4H- 1, Solid Phase Extraction, 2,4-triazol-3-yl)thio]acetyl}hydrazinecarbothioamide, Cadmium(II), Flame atomic absorption spectrometry, Lead(II), N-(4-methylphenyl)-2-{[(4-phenyl-5-pyridin-4-yl-4H- 1, Solid Phase Extraction

Kaynak

Journal of the Chilean Chemical Society

WoS Q Değeri

Q4

Scopus Q Değeri

Q3

Cilt

58

Sayı

4

Künye