Platinum determination in environmental samples using preconcentration cloud-point extraction with flame atomic absorption spectrometry

Evaluation of various digestion procedures for trace element contents of some food materials

“…They, on the other hand, contain both essential and toxic metals over a wide range of concentration [2][3][4][5][6][7][8].…”

Novel solid phase extraction procedure for gold(III) on Dowex M 4195 prior to its flame atomic absorption spectrometric determination

“…To overcome these limitations on the determination of gold by flame atomic absorption spectrometry, separation-enrichment techniques including solid phase extraction (SPE), cloud point extraction, liquid-liquid extraction, coprecipitation, etc. [8][9][10][11][12][13][14][15] have been used by the researchers around the world.…”

Three modified activated carbons by different ligands for the solid phase extraction of copper and lead

“…Each column can be used for at least 10 successive analyses without considerable change in metal ions recovery. The detection limits of analytes are superior to those of preconcentration techniques for analyses [38][39][40][41][42][43][44][45][46]. The good features of the proposed method showed that it's a convenient and low cost one.…”