A Procedure of Separation and Preconcentration for Titanium Determination in Sawater Samples by ICP-OES

Abstract

In the present paper, a procedure for separation, preconcentration and determination of trace amounts of titanium in seawater samples by using inductively coupled plasma optical emission spectrometry (ICP-OES) has been proposed. It is based on the complexation of , for a sample volume of 400 mL, considering the achieved enrichment factor of 80. The method was tolerant to other ions usually present in seawater samples. The procedure was applied to determine this element in seawater samples collected in beaches of the cities of Arembepe and Salvador, Bahia-Brazil.

Separation and enrichment of gold(III) from environmental samples prior to its flame atomic absorption spectrometric determination

“…For this purpose, several separation and enrichment techniques for gold (and for trace metal ions) including solvent extraction [10][11][12], co-precipitation [13][14][15], sorption, [16][17][18][19][20] etc., have been developed. One of this technique, solid-phase extraction (SPE) by Amberlite resins has been widely used for separation and enrichment of almost all the other trace metals, besides gold [21][22][23][24][25][26][27][28][29].…”

Extraction-Chromogenic System for Nickel(II) Based on 5-methyl-4-(2-thiazolylazo)resorcinol and Aliquat 336

“…[15][16][17][18][19][20] 5-methyl-4-(2-thiazolylazo)resorcinol (MTAR) is a well-known analytical reagent. [21][22][23][24][25][26][27][28] It has recently been used in our laboratory for LLE of V IV,V . [29][30][31][32] Here, we describe investigations on a LLE-chromogenic system for Ni II containing MTAR and the ionic liquid Aliquat 336 (A336).…”

Simple and rapid spectrophotometric determination of trace titanium (IV) enriched by nanometer size zirconium dioxide in natural water

“…Spectrophotometric methods offer the best alternative for routine analysis of titanium in the absence of ICP-AAS [5], ICP-AES [5], ICP-OES [6,7], and ICP-MS [8,9], owing to its rapidity and high selectivity [10]. Diantipyrylmethane (DAPM) as chromogenic agent is widely used for routine analysis of titanium [11], for its sensitivity (the apparent molar absorptivity 1.5 × 10 4 -1.8 × 10 4 ) and a good stability of the yellow coloured complex from Ti(IV) and DAPM.…”