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- W2355689372 abstract "2-acetyl thiazole-thiocarbohydrazide Schiff base was immobilized on the surface of silica gel to prepare a new solid phase(ATTCH-SG).Analytical characteristics of the Schiff base modified silica gel have been investigated.The optimization of some analytical parameters affecting the recovery of the Hg2+ such as acidity,sample flow rate,eluent condition,and influence of potentially interfering ions were investigated.The optimum pH is 6,quantitative recovery(≥91 %) of Hg2+ was achieved by stripping with 0.1 mol/L hydrochloric acid and 1g/L thiourea.The presented preconcentration procedure was applied to the determination of Hg2+ in water and food samples,high recoveries were obtained,the detection limit(3σ) was 0.014 6 μg/L,and the relative standard deviation less than 3.2 %(n=11)." @default.
- W2355689372 created "2016-06-24" @default.
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- W2355689372 date "2013-01-01" @default.
- W2355689372 modified "2023-09-24" @default.
- W2355689372 title "Preconcentration and Determination of Trace Hg(II) Using Chemically Modified Silica Gel with Schiff Base" @default.
- W2355689372 hasPublicationYear "2013" @default.
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