2007
DOI: 10.1016/j.jhazmat.2006.11.025
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Preparation of xylenol orange functionalized silica gel as a selective solid phase extractor and its application for preconcentration—separation of mercury from waters

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Cited by 75 publications
(41 citation statements)
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“…Jamali et al 5 have employed thiourea for eluting Pd(II) from thiophene-2-cabaldehyde-modified mesoporous silica with excellent recovery. Fan et al 10 reported on the adsorption of Hg(II) onto chemically modified silica when xylenol orange and HClO4 were used as the eluent, followed by determination with spectrophotometry without interferences from the eluent. In addition, for determining metal eluted from the sorbent by using FAAS, an acid such as nitric acid seemed to be compatible owing to no interference.…”
Section: Batch Methods Effect Of Solution Phmentioning
confidence: 99%
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“…Jamali et al 5 have employed thiourea for eluting Pd(II) from thiophene-2-cabaldehyde-modified mesoporous silica with excellent recovery. Fan et al 10 reported on the adsorption of Hg(II) onto chemically modified silica when xylenol orange and HClO4 were used as the eluent, followed by determination with spectrophotometry without interferences from the eluent. In addition, for determining metal eluted from the sorbent by using FAAS, an acid such as nitric acid seemed to be compatible owing to no interference.…”
Section: Batch Methods Effect Of Solution Phmentioning
confidence: 99%
“…There are several reports concerning sorbent materials for SPE, for example, PS-DVB, 4 mesoporous silica, 5,6 Amberlite XAD resin, 7 carbon nanotube 8,9 and silica gel. [10][11][12][13][14][15][16][17][18][19][20][21][22] Sorbent modification methods can be carried out in many ways, such as the impregnation of a chelating ligand onto the sorbent, modification on an octadecyl silica membrane [23][24][25] and the sorption of a metal-soluble ligand on the activated carbon. 26 However, modifying chelating ligands and fixing them to a solid support, such as silica gel, are practically employed in SPE studies.…”
Section: Introductionmentioning
confidence: 99%
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“…Применение в химиче-ском анализе таких сорбционных материалов по-зволяет значительно улучшить метрологические характеристики [6,7] и уменьшить матричные по-мехи [8] при определении токсикантов в природ-ных образцах сложного состава. Особый интерес представляют сорбционные материалы на осно-ве силикагеля, позволяющие проводить не только предварительное концентрирование из природных и технологических водных образцов, но и выполнять разнообразное инструментальное детектирование (атомно-абсорбционной [9,10], атомно-эмиссион-ной спектроскопией с индуктивно связанной плаз-мой [11,12], спектрофотометрией [13]) таких норми-руемых высокотоксичных загрязнителей, как ртуть.…”
Section: т 18 №unclassified
“…The second method offers a stronger resin capable of the formation of stable metal complexes with resin that is evidenced by a high preconcentration factor. 4 However, the immobilization method is exhaustive, and demands precautions while synthesizing the resin to eliminate cross-contamination. As compared to the second method, the first one is simple, rapid and easy.…”
Section: Introductionmentioning
confidence: 99%