Direct Simultaneous Determination for Ultratrace As, Se and Sb in River Water with Graphite-Furnace Atomic Absorpion Spectrometry by TiO2-Slurry Sampling

Abstract

A simple analytical method was established for the simultaneous multielement determination of As, Se and Sb in river water with GF-AAS using TiO2-slurry sampling. Titanium dioxide (TiO2, <0.5 μm) was applied as a sorbent to separate and concentrate these elements in a sample solution (100 -300 ml); after filtration, a slurry was prepared with the solid phase and 5.0 ml of ultrapure water. In order to apply to river-water samples, the effect of TiO2 in atomization, the effect of organic species of their metal and the interference of foreign ions were investigated. The proposed method was applied to JSAC 0302 and river water.

Simultaneous Or Sequential Multi-Element Graphite Furnace Atomic Absorption Spectrometry Techniques: Advances Within The Last 20 Years

“…21 These dynamic systems led many researchers to perform simultaneous multi-element analysis in numerous matrices (Table 1). 2, The LS-GFAAS technique was applied for the simultaneous multi-element analysis in several matrices, including foods, 2,23,45,46,55,60,68,70 beverages, 25,32,39,48,51,53 biological specimen, 26,28,30,31,38,40,50,52 environmental media, 24,27,29,33,42,43,47,58,66,67 crude oil, 57,65,69 fuel 34,49,61 and medicinal plants. 62 In total, 21 elements were determined in numerous studies and Pb, Cu, Cd, As, Cr and Ni were most frequently investigated (see references in Table 1).…”

Environmental impact on the toxicologically relevant arsenic species in ground water of 2nd aquifer of coal mining area and release in a reservoir: Risk assessment to aquatic life

“…To analyzed the inorganic As (total levels), a solid phase extraction method consist of adsorbed on a solid phase (sorbent) from liquid phase (generally water/aqueous sample solution) is used (Zhang et al, 2005(Zhang et al, , 2007Brahman et al, 2013). To determined and separate the As III and As V , a cloud point extraction method (CPE), which is based on the phase separation of non-ionic surfactants from aqueous solution or water (Liang et al 2009).…”

Determination of trace amounts of total dissolved cationic aluminium species in environmental samples by solid phase extraction using nanometer-sized titanium dioxide and atomic spectrometry techniques

“…On the contrary, many papers about the determination of other metal(loid)s in cationic or anionic form by TiO 2 based SPE were published [13][14][15][16][17][18][19][20][21][22][23][24][25][26][27][28][29][30][31]. Sorption kinetics, isotherms and capacities, TiO 2 regeneration and stability, analyte desorption and elution, effect of sample volume, TiO 2 mass, extraction time, pH and coexisting ions, detection and quantification limits, precision, accuracy and various applications were studied.…”

“…Trace Mo amounts in digested steel CRMs were determined by ICP OES after the separation and preconcentration of anionic Mo using TiO 2 microcolumn at pH 1.0 (Liang et al [23]). Concentrations of the total soluble anions As, Se and Sb on TiO 2 at pH 2.0 by slurry electrothermal atomic absorption spectrometry (ET AAS) with Zr-coated tube were simultaneously determined in filtered tap and river water [24,25]. Zhang and colleagues showed data from the separation, preconcentration and determination of In(III) as InCl À 4 at pH 3.5 from decomposed soil CRMs with nanometer-sized TiO 2 batch technique and spectrophotometry [26].…”