title: Preconcentration of Sn (II) using the methylene blue on the activated carbon and its determination by spectrophotometry method.
abstract: A simple and accurate spectrophotometric method for determination of trace amounts of Sn (II) ion in soil sample was developed by using the methylene blue (MB) in the presence of activated carbon (AC) as the adsorbent Solid Phase Extraction (SPE) of Sn (II) and then determined by UV-Vis. The Beer's law is obeyed over the concentration range of 1-80ngmL(-1) of Sn (II) with the detection limits of 0.34ngmL(-1). The influence of type and volume of eluent, concentration of MB, pH, and amount of AC on sensitivity of spectrophotometric method were optimized. The method has been successfully applied for Sn (II) ion determination in soil sample.
authors.affiliation: Medicinal Plants Research Center, Yasuj University of Medical Science, Yasuj, Iran. Electronic address: khodadoustsaeid@yahoo.com.
authors.forename: Saeid
authors.initials: S
authors.lastname: Khodadoust
authors.affiliation: Department of Chemistry, Abadan Branch, Islamic Azad University, Abadan, Iran.
authors.forename: Narges
authors.initials: N
authors.lastname: Cham Kouri
mesh_terms: D002606:Charcoal / Q000737:chemistry*; D008751:Methylene Blue / Q000737:chemistry*; D012987:Soil / Q000737:chemistry; D052616:Solid Phase Extraction / Q000379:methods*; D013053:Spectrophotometry / Q000379:methods; D014001:Tin / Q000302:isolation & purification*
chemical_list: D012987:Soil; D002606:Charcoal; D014001:Tin; D008751:Methylene Blue
keywords: Methylene blue (MB); Sn (II); Solid phase extraction; Spectrophotometric method