Application of Nanoanalysis: Amine-Functionalized Mesoporous Silica nanoparticles for Mercury Speciation in Human Samples
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Abstract:
Mercury (Hg) causes hazardous cumulative effects in humans; like central nervous system disorders,hypertension and chromosomal aberrations. Therefore, due to high toxicity and bioaccumulationfactor, mercury determination and speciation in human blood is very important. A sensitive,accurate, precise and inexpensive method was demonstrated for preconcentration and speciationof ultra-trace mercury in human blood samples. The amine-functionalized mesoporous silicananoparticles (NH2-MSNPs) as solid phase sorbent was prepared and investigated in a new andsimple dispersive-ionic liquid-micro-solid phase extraction (D-IL-μ-SPE) procedure for rapidspeciation and determination of trace inorganic and organic mercury [Hg+2 , (CH3Hg)+ and (C2H5Hg)+]in human blood samples. Under the optimal conditions, the linear range, limit of detection andpreconcentration factor were obtained 0.05-9.8 μg L−1, 15 ng L−1 and 9.6 for human blood samples,respectively (Peak Area, RSD
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Journal title
volume 4 issue 3
pages 181- 188
publication date 2017-09-01
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