A novel preconcentration method for determination of iron and lead using Chromosorb-103 and flame atomic absorption spectrometry
Küçük Resim Yok
Tarih
2005
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Elsevier Science Bv
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
Syringe connected-minicolumn (SCM) method for the preconcentration/separation of iron and lead prior to their determination by flame atomic absorption spectrometry (FAAS) was developed. The proposed method is substituted for classical batch and column methods. The method proposed was compared with the column method with respect to easiness, rapidness, simplicity and some analytical performance criteria such as recovery, precision, accuracy and risk of contamination. A minicolumn was filled with Chromosorb-103 as a sorbent and connected with a syringe. The experimental conditions such as pH of sample, concentration and amount of eluent, flow rates of sample and eluent, concentration of 8-hydroxyquinoline (oxine) as a complexing agent were optimized. The sample solution with or without oxine was drawn into the syringe and discharged manually passing through the resin. Analytes were retained at pH >= 5 and eluted with I M nitric acid in acetone quantitatively. Analyte elements could be concentrated up to 200-fold. The iron and lead in river-water samples and in certified reference Bovine Liver (NIST 1577b) were quantitatively recovered with relative standard deviation lower than 10%. (c) 2005 Elsevier B.V. All rights reserved.
Açıklama
4th Aegean Analytical Chemistry Days Congress -- SEP 03-OCT 03, 2004 -- Kusadasi, TURKEY
Anahtar Kelimeler
Syringe-Connected Minicolumn Method, Flame Atomic Absorption Spectrometry, Solid Phase Extraction, Chromosorb-103, Bovine Liver, Solid-Phase Extraction, Chromatographic Stationary Phases, Flow-Injection, Silica-Gel, Aqueous Samples, Trace-Elements, Water, Cadmium, Syringe, Nickel
Kaynak
Analytica Chimica Acta
WoS Q Değeri
Q1
Scopus Q Değeri
Q1
Cilt
547
Sayı
1
