Direct analysis of natural waters for arsenic species by hydride generation atomic absorption spectrometry

Bundaleska, Jožica Majda; Stafilov, Trajče; Arpadjan, Sonja

doi:10.1080/03067310412331334835

Cited by 30 publications

(21 citation statements)

References 27 publications

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“…Higher contents of Mo and W in the Radoviš region may be due to dust from a magnetite ore mine not any more in operation, and possible associated tailing dumps. The appearance of Au in moss in (Bundaleska et al 2005) (sampling site 14) are within the range 50-200 μg/L whereas the "normal" concentrations of arsenic in mineral waters from Macedonia range between 1-10 μg/L (Bundaleska et al 2005). This indicates that the rocks and soils in this area may also be high in arsenic, and hence possibly contribute to high arsenic in moss.…”

Section: Resultsmentioning

confidence: 78%

Atmospheric deposition of trace element pollutants in Macedonia studied by the moss biomonitoring technique

Barandovski

Cekova

Frontasyeva

et al. 2007

Environ Monit Assess

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For the first time the atmospheric deposition of trace metals was studied over the entire territory of the Republic of Macedonia. Samples of the terrestrial mosses Hypnum cupressiforme, Camptothecium lutescens, and Homalothecium sericeum were collected in September-October 2002 at 73 sites evenly distributed over the country, and a total of 43 elements were determined by instrumental neutron activation analysis and atomic absorption spectrometry. Principal component factor analysis was used to identify the most polluted areas and characterize different pollution sources. The most important sources of trace metal deposition are ferrous and non-ferrous smelters, oil refineries, fertilizer production plants, and central heating stations. Four areas appear to be particularly exposed to metal pollution: Veles, Skopje, Tetovo, and Kavadarci-Negotino, whereas the predominantly agricultural regions in the south, southwest, and southeast show levels closer to European median values for most elements of mainly pollution origin.

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Section: Resultsmentioning

confidence: 78%

Atmospheric deposition of trace element pollutants in Macedonia studied by the moss biomonitoring technique

Barandovski

Cekova

Frontasyeva

et al. 2007

Environ Monit Assess

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“…Hydride generation atomic absorption spectrometry (HGAAS) is the most widely used technique applied either directly or after a suitable pre-treatment step [9][10][11]. Hydride generation method has been reported to have the advantage of determining the different forms of arsenic (different oxidation states and forms bound to organic matter) on the basis of different kinetics of hydride generation by each species [12].…”

Section: Introductionmentioning

confidence: 99%

Synthesis, characterization and application of a novel mercapto- and amine-bifunctionalized silica for speciation/sorption of inorganic arsenic prior to inductively coupled plasma mass spectrometric determination

Boyacı

Çağır

Shahwan

et al. 2011

Talanta

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a b s t r a c tA bifunctional sorbent, (NH 2 + SH)silica, containing both amine and mercapto functionalities was prepared by modification of silica gel with 3-(triethoxysilyl)propylamine and (3-mercaptopropyl)trimethoxysilane. In addition to the bifunctional sorbent, silica gel was modified individually with the functional mercapto-and amino-silanes, and the mono-functional sorbents, namely (SH)silica and (NH 2 )silica, were also mechanically mixed ((NH 2 )silica + (SH)silica) for the sake of comparison of sorption performances. It has been demonstrated that (SH)silica shows quantitative sorption only to As(III) at two pH values, 1.0 and 9.0, while (NH 2 )silica displays selectivity only towards As(V) at pH 3.0. On the other hand, the bifunctional (NH 2 + SH)silica possesses the efficient features of the two mono-functionalized sorbents; for example, it retains As(III) at a wider pH range, from 1.0 to at least 9.0 with the exception at pH 2.0, and it also shows quantitative sorption to As(V) at pH 3.0. This property gives the bifunctional (NH 2 + SH)silica a better flexibility in terms of sorption performance as a function of solution pH. The mechanically mixed (NH 2 )silica + (SH)silica exhibits a similar but less efficient sorption behavior compared to the bifunctional sorbent. Desorption of both As(III) and As(V) species can be realized using 0.5 M NaOH. The validity of the proposed method was checked through the analysis of a standard reference material and a good correlation was obtained between the certified (26.67 g L −1 ) and determined (27.53 ± 0.37 g L −1 ) values. Spike recovery tests realized with ultrapure water (93.0 ± 2.3%) and drinking water (86.9 ± 1.2%) also confirmed the applicability of the method.

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“…95 A series of studies is devoted to the optimization of the FI preconcentration of trace elements as chelate complexes in a knotted reactor (KR) and its on-line coupling with ETAAS using various chelating reagents and preconcentration techniques. 73,74,88,96,97 The FI system is further modified with a view to its on-line coupling with ICP-time-of-flight(TOF)-MS. 25,[82][83][84] Analytical procedures using solid phase extraction (SPE), ion exchange (IE), LLE, as well as fractionation schemes were developed for the speciation determination of toxic elements like As, Cr, Hg, Tl, Fe, Pt, Sb, and Se in various food items, 50,51,53 beverages, 118-120 natural waters, 15,19,52,[121][122][123][124][125][126] soils and sediments, [16][17][18][19][20][21][127][128][129] body fluids and tissues, 17,101,130 road dust, 131 etc., with a view to assess bioavailability, biotransformations and distribution patterns.…”

mentioning

confidence: 99%

Bulgarian analytical atomic spectroscopists in the new millennium—integrated in the European research area

Tsalev

Ivanova

2012

J. Anal. At. Spectrom.

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Direct analysis of natural waters for arsenic species by hydride generation atomic absorption spectrometry

Cited by 30 publications

References 27 publications

Atmospheric deposition of trace element pollutants in Macedonia studied by the moss biomonitoring technique

Atmospheric deposition of trace element pollutants in Macedonia studied by the moss biomonitoring technique

Synthesis, characterization and application of a novel mercapto- and amine-bifunctionalized silica for speciation/sorption of inorganic arsenic prior to inductively coupled plasma mass spectrometric determination

Bulgarian analytical atomic spectroscopists in the new millennium—integrated in the European research area

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