Determination of Tin by Resin-Suspension Electrothermal Atomic Absorption Spectrometry after Enrichment as the Complex with Ammonium Pyrrolidinedithiocarbamate

Abstract

A resin-phase extraction method has been optimized for the trace determination of tin(II) by ETAAS. Tin(II) was extracted on a finely divided anion exchange resin as the complex with ammonium pyrrolidinedithiocarbamate (APDC). The resin was collected on a membrane filter and then dispersed in 1.00 ml of 1 mol l −1 nitric acid containing 100 μg of Pd(II) and 60 μg of Ni(II). The resulting resin suspension was subjected to GFAAS. The proposed method was applied to the determination of tin(II) in hydrochloric acid.

Inorganic Arsenic Speciation in Groundwater Samples Using Electrothermal Atomic Spectrometry Following Selective Separation and Cloud Point Extraction

“…Inorganic metal oxides, such as aluminum oxide (Al2O3), cobalt oxide and titanium dioxide, have been used to concentrate trace and ultra trace metallic elements as sorbents. [20][21][22][23][24] The Al2O3 showed high adsorption ability for target metal ions due to its ordered mesoporous structure with a pore size of about 10 nm. 25 For the quantitative determination of As, graphite furnace atomic absorption spectrometry (GFAAS) or hydride generation atomic absorption spectrometry (HGAAS) were frequently used.…”