Highly Selective Separation and Preconcentration of Lead as its Fast Green FCF Complex by Cloud Point Extraction
Küçük Resim Yok
Tarih
2022
Yazarlar
Dergi Başlığı
Dergi ISSN
Cilt Başlığı
Yayıncı
Springer Int Publ Ag
Erişim Hakkı
info:eu-repo/semantics/closedAccess
Özet
An effective and highly selective cloud point extraction method was produced for separation of Pb (II) ions from its matrix. The basics of the method depend on the formation of a stable complex between Pb (II) ions and Fast Green FCF dye molecules at pH 7.0. The quantitative extraction of the stable complex into the surfactant-rich phase Tergitol NP-7 was achieved successfully at 40 degrees C. The concentration of Pb (II) was measured by FAAS after its preconcentration. The CPE procedure displayed good analytical characteristics such as limit of detection value of 1.81 mu g L-1, and linearity under optimum conditions. The preconcentration factor of Pb (II) was found as 25 for 50 mL sample volume. Pb (II) ions were quantitatively separated with tolerable limits existence of common matrix ions. The selectivity of the method was also proved in the presence of secondary metal matrix ions. The optimized method was then employed for Pb (II) analysis in wastewater and freshwater samples.
Açıklama
Anahtar Kelimeler
Lead, Cloud point extraction, Fast Green FCF, FAAS, Wastewater
Kaynak
Iranian Journal of Science and Technology Transaction A-Science
WoS Q Değeri
Q3
Scopus Q Değeri
Q2
Cilt
46
Sayı
1
